LCT8 Ultrasonic Flow Meter

Product Information: SentinelTM LCT8

The SentinelTM LCT8 is a high accuracy ultrasonic liquid flow
meter designed for custody transfer. It is manufactured by
Panametrics and comes with a user manual for easy installation,
programming, maintenance, and troubleshooting. The product has a CE
Mark compliance and is suitable for use in high noise
environments.

Product Usage Instructions:

Chapter 1. General Information:

Read the user manual carefully before operating the product.
Register your product at
https://info.bakerhughes.com/New-Product-Registration-LP.html for
product support such as the latest software/firmware upgrades,
product information, and special promotions.

Chapter 2. Installation:

Follow the step-by-step instructions provided in the user manual
to install the product. Ensure that the product is installed in a
suitable location and all connections are properly made.

Chapter 3. Programming:

Refer to Chapter 3 for programming instructions. Follow the
instructions to program and configure the product according to your
requirements.

Chapter 4. Maintenance:

Regular maintenance is necessary to ensure optimal performance
of the product. Refer to Chapter 4 for maintenance instructions and
follow them carefully.

Chapter 5. Troubleshooting:

If you encounter any issues while using the product, refer to
Chapter 5 for troubleshooting instructions. Follow the instructions
carefully to identify and resolve the problem.

Appendix A. CE Mark compliance and high noise

environments:

If you intend to use the product in high noise environments,
refer to Appendix A for EMC compliance instructions.

Services:

Panametrics provides customers with a range of support services
including training, product repairs, extended warranties, service
agreements, and more. Please visit
https://www.bakerhughesds.com/panametrics/services for more
information.

SentinelTM LCT8
User’s manual

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SentinelTM LCT8
High accuracy ultrasonic liquid flow meter for custody transfer
User’s manual
910-314 Rev. A October 2017
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Contents
Product registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Terms and conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Typographical conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Safety issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Auxiliary equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x Environmental compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Chapter 1. General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.1 Theory of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1.1 Transit-time method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1.2 Transducers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
1.2 Multi-path design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Flow profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.4 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.5 Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.6 Meter components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.7 Marking and labeling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.7.1 Tag plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.7.2 Model tag plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.7.3 Specification tag plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.7.4 Part string and serial number tag plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.7.5 Transmitter tag plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Installation guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Preparing for installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.1 Installation precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3.2 Lifting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.4 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4.1 Standard installation recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4.2 Fluid requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.4.3 Guidelines for installing pipe insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.5 Making the electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5.1 Removing the enclosure covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.5.2 Cable tie-down posts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.5.3 Wiring the line power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.5.4 Wiring the serial port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.5.5 Wiring the modbus communications line (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.5.6 Wiring the alarm relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.5.7 Wiring the 4-20mA analog input (optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.5.8 Wiring the frequency/totalizer output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.5.9 Wiring the 4-20 mA analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
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2.6 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.6.1 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.6.2 Normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.6.3 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.6.4 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 3. Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 3.1.1 HMI features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.1.2 Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.1.3 Totalizer hard switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 3.1.4 The magnetic stylus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2 Navigating through the program options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2.1 Conventions and guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2.2 Security access level and privileges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.3 Measurement view, security and page overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3.3.1 Unlocking the meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.3.2 Primary pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 3.3.3 Changing the access level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
3.4 Programming menu options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.4.1 Channel programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.4.2 Composite programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.4.3 setting up the input data feeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 3.4.4 Setting up the API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.5 Generic meter configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.5.1 Selecting the preferred unit type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 3.5.2 Setting up communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.5.3 Setting reset totals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 3.5.4 Setting up totalizer error handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 3.5.5 Setting the date and time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.6 Inputs/outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3.6.1 Setting up an analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 3.6.2 Setting up a frequency/totalizer output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 3.6.3 Setting up an alarm output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 3.6.4 Setting up an analog input (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 3.6.5 Setting up an RTD input (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
3.7 Configuring the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 3.8 Calibrating the analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 3.9 User configuration setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
3.9.1 The edit passcodes option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 3.9.2 The security timeout option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 3.9.3 The modbus access timeout option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 3.9.4 The set security option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 3.10 Factory status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
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Chapter 4. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.1 Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 4.1.1 Checking the software version numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 4.1.2 Save, restore or delete a site file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77 4.1.3 Updating the instrument software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
4.2 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 4.2.1 Servicing the pipe flange interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 4.2.2 Servicing the sensor ports and transmitter connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 4.2.3 Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Chapter 5. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.2 Error codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 5.2.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 5.2.2 General guidelines for troubleshooting with error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
5.3 Flow info . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
5.4 Fluid and pipe problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 5.4.1 Fluid problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96 5.4.2 Pipe problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
5.5 Transducer problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
5.6 Uncertainty in flow rate for a non-insulated flowcell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
5.7 Manufacturing tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 5.7.1 Frequency output test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 5.7.2 Totalizer output test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 5.7.3 Alarm output test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
5.8 Internal logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 5.8.1 Audit logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 5.8.2 Error logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Chapter 6. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
6.1 Physical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 6.1.1 Flowcell dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105 6.1.2 System weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 6.1.3 SEN898 transmitter weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
6.2 Operation and performance specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 6.2.1 Flow rate ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 6.2.2 Operating pressures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 6.2.3 Fluid types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.4 Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.5 Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.6 Repeatability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.7 Uncertainty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.8 Viscosity range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.9 Reynolds range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.10 Process temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.11 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.2.12 Storage temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
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6.3 Meter body specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.3.1 Meter body materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.3.2 Pipe sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.3.3 Flange ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.3.4 Pipe schedules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 6.3.5 Installation requirement (straight pipe run) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
6.4 Electronics (SEN898) specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110 6.4.1 Electronics enclosure material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.2 Electronics enclosure dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.3 Electronics enclosure weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.4 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.5 Power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.6 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.7 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.8 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.9 Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.10 Digital interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.11 Flow computer functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.12 Hazardous area certifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.13 CE Mark compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 6.4.14 Custody transfer performance approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Appendix A. CE Mark compliance and high noise environments . . . . . . . . . . . . . . . . . . . . . . . . 111
A.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 A.2 EMC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Appendix B. Service record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
B.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 B.2 User defined settings for the input/output connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113 B.3 Baseline diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 B.4 Troubleshooting diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 B.5 Data entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Appendix C. Modbus register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
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Product registration
Thank you for purchasing your SentinelTM LCT8 from Panametrics. Please register your product at https://info. bakerhughes.com/New-Product- Registration-LP.html for product support such as the latest software/firmware upgrades, product information and special promotions.
Services
Panametrics provides customers with an experienced staff of customer support personnel ready to respond to technical inquiries, as well as other remote and on-site support needs. To complement our broad portfolio of industry-leading solutions, we offer several types of flexible and scalable support services including: training, product repairs, extended warranties, service agreements and more. Please visit https://www.bakerhughesds.com/panametrics/ services for more details.
Terms and conditions
Sales terms and conditions for your recent purchase of a Panametrics product, including the applicable product Warranty, can be found on our website at the following link: https://www.bakerhughesds.com/sales-terms-conditions.

Typographical conventions
NOTE: These paragraphs provide information that provides a deeper understanding of the situation, but is not essential to the proper completion of the instructions.
IMPORTANT These paragraphs provide information that emphasizes instructions that are essential to proper setup of the equipment. Failure to follow these instructions carefully may cause unreliable performance.
CAUTION! This symbol indicates a risk of potential minor personal injury and/or severe damage to the equipment, unless these instructions are followed carefully.
WARNING! This symbol indicates a risk of potential serious personal injury, unless these instructions are followed carefully.

Safety Issues
WARNING!
It is the responsibility of the user to make sure all local, county, state and national codes, regulations, rules and laws related to safety and safe operating conditions are met for each installation.

Attention European customers!
To meet CE Mark requirements for all units intended for use in the EU, all electrical cables must be installed as described in this manual.

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Auxiliary equipment
Local safety standards The user must make sure that he operates all auxiliary equipment in accordance with local codes, standards, regulations, or laws applicable to safety.
Working area
WARNING!
Auxiliary equipment may have both manual and automatic modes of operation. As equipment can move suddenly and without warning, do not enter the work cell of this equipment during automatic operation, and do not enter the work envelope of this equipment during manual operation. If you do, serious injury can result.

Environmental compliance
RoHS The SentinelTM LCT8 fully complies with RoHS regulations (Directive 2011/65/EU).
Waste Electrical and Electronic Equipment (WEEE) Directive Panametrics is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE) take-back initiative (Directive 2012/19/EU).

WARNING!
Make sure that power to the auxiliary equipment is turned OFF and locked out before you perform maintenance procedures on this equipment.
Qualification of personnel Make sure that all personnel have manufacturer- approved training applicable to the auxiliary equipment.
Personal safety equipment Make sure that operators and maintenance personnel have all safety equipment applicable to the auxiliary equipment. Examples include safety glasses, protective headgear, safety shoes, etc.
Unauthorized operation Make sure that unauthorized personnel cannot gain access to the operation of the equipment.

Panametrics is an active participant in Europe’s Waste Electrical and Electronic Equipment (WEEE) take-back initiative (Directive 2012/19/EU).
The equipment that you bought has required the extraction and use of natural resources for its production. It may contain hazardous substances that could impact health and the environment.
In order to avoid the dissemination of those substances in our environment and to diminish the pressure on the natural resources, we encourage you to use the appropriate takeback systems. Those systems will reuse or recycle most of the materials of your end life equipment in a sound way.
The crossed-out wheeled bin symbol invites you to use those systems.
If you need more information on the collection, reuse and recycling systems, please contact your local or regional waste administration.
Please visit https://www.bakerhughesds.com/healthsafetyand-environment-hse for take-back instructions and more information about this initiative.

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Chapter 1. General information
1.1 Theory of operation
The Sentinel LCT8 measurement system uses ultrasonic transit-time technology. A brief description of transit-time theory follows. For more information about the theory, and the use of Panametrics ultrasonic flow meters for measuring flow, please refer to Ultrasonic measurements for process control by L.C. Lynnworth (Academic Press, 1989).
1.1.1 Transit-time method
The transit time technique uses a pair of transducers, with each transducer alternately sending and receiving coded ultrasonic signals through the fluid. When the fluid is flowing, signal transit time in the downstream direction is shorter than in the upstream direction. The difference between these transit times is proportional to the flow velocity. The Sentinel LCT8 measures this very small time difference and, using various digital signal processing techniques combined with programmed pipe parameters, determines the flow rate and direction.
1.1.2 Transducers
When in a transmit cycle, transducers convert electrical energy into ultrasonic pulses and then convert the ultrasonic pulses back to electrical energy when in a receive cycle. In other words, they act like loudspeakers when transmitting the signal and like microphones when receiving it. They perform the actual data transmission and collection, thus interrogating the flow. The transducers in the Sentinel LCT8 measurement system were specifically designed to be replaced under normal operating conditions. A damaged or non-functional transducer, can be replaced without shutting down the pipeline. Recalibration of the replacement is not necessary.
1

1.2 Multi-path design
Multi-path ultrasonic flow meters are designed with more than one pair of transducers to interrogate the flow field in different locations and more accurately determine the actual flow rate. The Sentinel LCT8 measurement system uses eight measurement locations. These measurement paths are located across the meter body and tilted at an angle. The eight measurement paths are orthogonal to each other. The sensor path placements provide the best swirl and disturbance immunity.
1.3 Flow profile
One of the main factors that can adversely affect the performance of an ultrasonic flow measurement is a disturbed and unsymmetrical flow profile. Maintaining a desired flow-profile shape across all flow velocities, pipe sizes and upstream flow disturbances is difficult. For this reason, Panametrics has tested the Sentinel LCT8 under various pipe configurations in an effort to determine its operational specifications and immunity against cross flow and swirl. Panametrics also completes calibrations based on the specific customer application needs to ensure the best meter performance. Owning to the design of our Eight-path flowmeter, we are able to meet performance specifications across a range of disturbances. Use of flow conditions is normally unnecessary due to calibration methods and meter design. If the need of a flow conditioner is concluded, the meter calibration will be performed with the flow conditioner in place.

1.4 Unpacking
The Sentinel LCT8 is typically packaged in a wooden crate, the size of which will depend on the size of product ordered. It will be secured by several 2×4 wood blocks to prevent shifting during transit. Simply remove these 2×4 braces to unpack the system. For local-mount systems the transmitter will be installed directly on top of the pressure vessel. For remote-mount systems the transmitter and remote cable may ship in a separate package.
1.5 Inspection
Prior to installation, inspect all materials to be used in the installation: · Gaskets – check for cracks, tears and over compression
(not included in Sentinel LCT8 package) · Nuts and bolts – check for damaged threads and for
debris (not included in Sentinel LCT8 package) · RF flange faces – check for damage to serrations that
may cause gaskets to not seal properly. · Flow conditioners – check for blockages or damage
to the flow conditioner
In general, check for anything that may prevent safe operation of the equipment.
IMPORTANT
If pipes are shipped pre-assembled as a single section, care should be taken to inspect and check the bolts and gaskets.

2

1.6 Meter components
Figure 1 on page 3 shows a Sentinel LCT8 system, with items 1-8 as described in Table 1 below.

Table 1: Sentinel LCT8 system components

No Component

Material (ASTM)

Qty

1 Meter body with flanges

SA216 Gr. WCB (carbon steel)

1

SA352 Gr. LCB (low temp carbon steel)

SA351 Gr. CF8 (304 SS)

SA351 Gr. CF8M (316 SS)

2 Model tag plate

1

3 Transmitter tag plate

1

4 Part string and serial number tag plate

1

5 Transducer insert/buffer

316 SS

16

6 Transducer

316 SS

16

7 SEN898 electronics

1

8 External conduit connections, 3/4″ cable glands

3

9 Upstream meter run (not supplied by Panametrics)

N/A

10 Flow conditioner (optional)

A/R

11 Downstream meter run (not supplied by Panametrics)

See Figure 11 on page 7

N/A

12 Temperature probe (optional, not supplied by Panametrics)

N/A

13 Pressure probe (optional, not supplied by Panametrics)

N/A

External conduit connections (8)

SEN898 electronics (7)

Transmitter tag plate (3)

Transducer/insert/buffer (5, 6) Model tag plate (2)

P/N and S/N tag plate (4) Meter body (1)

Flanges (1)

Figure 1: Typical Sentinel LCT8 assembly

NOTE: Design details changes slightly with pipe size.

3

1.7 Marking and Labeling
1.7.1 Tag plates
There are four tag plates affixed to the Sentinel LCT8 which provide details about the system. Three are located on the vessel and one is located on the transmitter. Their locations are shown in Figure 2 below.

8 panametrics.com

Transmitter tag plate
Model tag plate Part string and serial number
tag plate

Specification tag plate

Figure 2: Sentinel LCT8 tag plate locations
1.7.2 Model tag plate
The model tag plate (see Figure 3 below) contains the model name and certification markings for the pressure vessel and its hazardous area usage.

8

8

EXPLOSIONPROOF ONLY (Ex d)

EXPLOSIONPROOF with INCREASED SAFETY (Ex d e)

Figure 3: Sentinel LCT8 model tag plate (ref. 442-1402)

1.7.3 Specification tag plate
The specification tag plate (see Figure 4 below) contains information pertaining to the build and test of the pressure vessel. It contains the following information: · Vessel nominal size, flange rating, wall thickness, material · Dry weight (including transmitter) · Vessel manufacturer serial number · Ambient and fluid temperature ranges · Operating pressures · Hydro test pressure and date

Non-PED Certified (Ref. 442-1806)
Figure 4: Specification tag plate
NOTE: Information in dashed boxes above is shown only as an example.
1.7.4 Part string and serial number tag plate
The part string and serial number tag (see Figure 5 below) contains the specific configuration of the pressure vessel as well as the final assembly date, Panametrics serial number and customer tag information.

SEN-LCT8-SAMPLE SAMPLE SAMPLE SAMPLE

SAMPLE

Figure 5: Part string and S/N tag plate (ref. 442-1445)
NOTE: Information in dashed boxes is shown only as an example.

1.7.5 Transmitter tag plate
The SEN898 transmitter tag plate (see Figure 6 below) is affixed to the transmitter and includes the configuration per the model information detailed on the model tag plate. This tag plate also contains the hazardous area certification information for the transmitter.

8

Panametrics LLC

8

Panametrics LLC

EXPLOSIONPROOF ONLY (Ex d)

EXPLOSIONPROOF with INCREASED SAFETY (Ex d e)

Figure 6: SEN898 transmitter tag plate (ref. 442-1521)

4

Chapter 2. Installation
2.1 Installation guidelines
This section provides general information with respect to the mechanical and electrical installation, and should be thoroughly reviewed before the system is installed. To ensure safe and reliable operation of the Sentinel LCT8, the system must be installed in accordance with the guidelines established by Panametrics, as explained in this chapter.
WARNING! The Sentinel LCT8 flow measurement system can measure the flow rate of many fluids, some of which are potentially hazardous. Strict observance of proper safety practices is essential.
WARNING! Be sure to follow all applicable local safety codes and regulations for installing electrical equipment and working with hazardous gases or flow conditions. Consult company safety personnel or local safety authorities to verify the safety of any procedure or practice.
Attention European customers! To meet CE Mark requirements, all cables must be installed as described in Appendix A. CE Mark compliance and high noise environments on page 111.
Attention European customers! This manual fulfills the requirements of the Pressure Equipment Directive 97/23/EC. Please read it carefully in order to guarantee safe operation of this pressure equipment. Follow all warnings and instructions marked on the product.
2.2 Bill of materials
The following items should have been included in the shipment: · Sentinel LCT8 flow meter · Magnetic wand · User’s manual · CD with PanaView SEN898 software (optional)
5

2.3 Preparing for Installation

2.3.1 Installation precautions
Any questions with respect to the installation should be addressed prior to beginning the installation. Failure to install the Sentinel LCT8 correctly can increase measurement uncertainty.
All the mechanical and electronic components are shipped fully assembled, however the following precautions should be observed:
· Only authorized personnel should perform the installation. The proper personal protection equipment (PPE) should always be used when working with this equipment.
· The vessel shall be installed in such a way that it can be safely operated, maintained and inspected. Please refer to specific outline and installation drawings for proper clearances and specific distances for each system size. In general, allow for a minimum of 12″ of space on all sides of pressure vessel and transmitter, with an ideal clearance of 24″ on all sides.
· You must provide suitable over-pressure protection at or in the main piping to the flowcell in order to prevent damage to the flowcell and injury to personnel. The utilized over-pressure protection device shall be supplied with all declarations of conformity and EC-type design certificates.
· Make sure the difference between the inside diameter of the pipe and that of the Sentinel LCT8 meter does not exceed 0.5%, as changes in internal diameters will cause flow profile disturbances.
· Make sure any non-symmetrical offset does not exceed 1%, as misalignment between the piping and the meter may cause flow profile disturbances.
· Make sure the gasket is centered on the flange faces and does not protrude into the pipe, as protrusion of the gasket into the pipe may cause flow profile disturbances.
· Make sure the Sentinel LCT8 is oriented with the flow transmitter in a vertical position at the top, as shown in Figure 7 below.

2.3.2 Lifting Instructions
WARNING! To avoid possible strain, refer to the Sentinel LCT8 label for the assembly weight, use a properly-rated lifting assembly, and place the lifting straps in the indicated locations (see Figure 7 on page 6). Never stand below any object being lifted!
Use proper lifting techniques when moving the Sentinel LCT8 (see Figure 8 below). No lifting hooks or eyelets are provided. The recommended method for lifting the Sentinel LCT8 is by using lifting straps on each side of the pressure vessel with a stabilizer bar between them, located above the transmitter enclosure. Additional care may need to be taken to prevent the transmitter from rotating, especially on smaller systems where the transmitter weight is a larger percentage of the total system weight.
Stabilizer bar
Figure 8: Proper lifting method
WARNING! Do not use the transmitter to support the weight of the flowcell, as shown in Figure 9 below. The transmitter cannot support the weight of the pressure vessel.

Figure 7: Lifting strap locations 6

Figure 9: Improper lifting method

2.4 Mechanical installation
Being mindful of the Installation precautions on page 6, complete the following steps:
1. Make sure the gaskets are in place on the flanges.
2. Support the Sentinel LCT8 between the flanges on the pipe.
3. Align the flange mounting holes as shown in Figure 10 below.
4. Secure the meter to the pipe by using the appropriate hardware.

2.4.1.3 Flow direction – straight pipe run differences
For both uni-directional and bi-directional flow, the user must provide the minimum straight pipe runs upstream and downstream from the flowcell, as shown in Figure 11 below. Any additional length of straight pipe run will help produce a more symmetrical flow profile, thus further reducing measurement uncertainty.

Uni-directional flow

Temperature/pressure transmitters 3D min.

5D upstream

3D downstream

Bi-directional flow

Figure 10: Sentinel LCT8 mounting flange
2.4.1 Standard installation recommendations
2.4.1.1 Installation location
Proper installation of the Sentinel LCT8 is important to achieve maximum performance from the system. The following installation recommendations provide general guidelines of how this system should be installed. If the following recommendations cannot be met, please consult the factory for a more detailed review of the application to see what performance may be achievable. Following these recommendations may not be the solution for all situations, since every installation is different.
2.4.1.2 Straight pipe run requirements
The Sentinel LCT8 should be installed to meet one of the following condition:
· A minimum of 5 nominal pipe diameters upstream of the metering section (pressure vessel) and a minimum of 3 nominal pipe diameters downstream.
For any other straight run configurations, consult Panametrics for an application assessment.

5D

5D

Note: temperature and pressure transmitters should

Be located elsewhere for bi-directional installations.

Figure 11: Minimum straight pipe runs for Sentinel LCT8 installations

2.4.1.4 Inner diameter matching
To maintain optimal product performance, the inner diameter of the upstream sections should be within 0.5% of the metering section inner diameter at the flange. The downstream matching is not as critical but should be of the same schedule and matched as closely as possible.
In addition, gaskets should not protrude past the inner diameter to disrupt the flow profile.
2.4.1.5 Location of temperature and pressure measurements
Temperature and pressure measurements should always made downstream of the Sentinel LCT8 and be located a minimum of 3D downstream of the pressure vessel, with a preferred distance of 5D downstream. For any other locations for temperature and pressure measurement consult Panametrics for an application assessment.
2.4.1.6 Calibration recommendations
In general, the best practice is to calibrate as much of the measuring section as possible. This would include upstream and downstream straight pipe runs and the Sentinel LCT8. While this is not always possible or cost effective, it will provide the best transferability from calibration to field usage. This methodology is highly recommended for custody transfer master meter and duty systems to maintain the lowest possible system uncertainty. Each application is different and requires a customized calibration plan. For calibration recommendations, consult the factory for an application assessment.

7

2.4.2 Fluid requirements
Gas – To avoid measurement errors, suitable measures should be taken to make sure the line is full and the gas in the line is kept below 1%. While the system may still be able to measure with larger amounts, it has the potential to affect accuracy. When gas is present, keep flow rates as high as possible to help push the gas through the metering section.
Particulate – To avoid measurement errors, suitable measures should be taken to minimize solid particulate in the line. Particulate should ideally be less than 1% for accurate measurement.
Water in oil – Water and oil mixtures under 5% should not affect accuracy as long as they are well mixed. Keep flow rates high enough to ensure a well- mixed solution. Higher percentages of water may be present, but this could affect the accuracy of measurements.
Please consult Panametrics for any applications where conditions are outside the above recommendations for a more comprehensive application review.

2.4.3 Guidelines for installing pipe insulation
If pipe insulation is required:
· Install all insulation materials and accessories in accordance with the manufacturer’s instructions and the recognized industry practices. Adhere to the local code where applicable to ensure that the safe and proper installation will serve its intended purpose.
· Install the insulation material in layers, with smooth and even surfaces. Allow adequate space (air pockets) around all extended transducer buffer rods, conduit fittings, junction boxes, and cables, for proper ventilation. Avoid using cut pieces or scrap insulation when abutting the sections being installed. Butt insulation joints firmly to ensure a complete, tight fit over and around all piping surfaces.
· Maintain the integrity of any factory-applied vapor barrier jacketing on all pipe insulation, if applicable. Seal all joints and seams, protecting the insulation against puncture, tears or other damage.

8

2.5 Making the electrical connections

This section contains instructions for making the necessary electrical connections to the flow transmitter (see Figure 12 below). The wiring between the transmitter and the transducers has been installed at the factory, and no further connections are required on this portion of the wiring.
IMPORTANT
When wires are connected to terminal blocks, use wire ties routed through the blocks, to secure them.
Attention European customers!
To meet CE Mark requirements, all cables must be installed as described in Appendix A. CE Mark compliance and high noise environments on page 111.
IMPORTANT
The meter is grounded to the electronics. This configuration must be considered when applying cathodic protection to the pipe line. The power ground applied to the instrument should be at the cathodic protection voltage level.

2.5.1 Removing the enclosure covers
WARNING!
Always disconnect the line power from the meter before removing either the front display cover or the wiring access cover. This is especially important in a hazardous environment.
1. Disconnect any previously wired power line from the flow transmitter.
2. Loosen the set screw on the side cover using a 2.5 mm hex wrench.
3. Place a rod or long screwdriver across the cover in the slots provided, and rotate the cover counterclockwise until it comes free from the enclosure.
4. Note the text printed on the terminal board (see Figure 13 on page 31) to assist in wiring the power and option card connections.
Proceed to the appropriate section of this chapter to make the desired wiring connections.

2 frequency 2 alarms 1 analog output (4-20 ma) 3 analog inputs (4-20 ma) or 2 analog inputs (4-20 ma) + 1 RTD input

RS232/RS485 modbus

Flow

Computer

Corrected Volumetric Flow

RS232 or RS485

Pressure

Temperature

Sentinel LCT8 Meter calibration, data collection,
configuration, and security
Figure 12: Sentinel LCT8 flow measurement system connections

PanaviewTM instrument interface software
9

NOTE: For compliance with the North American and European low voltage directive, this unit requires an external power disconnect device such as a switch or circuit breaker. The disconnect device must be marked as such, clearly visible, directly accessible, and located within 1.8 m (6 ft) of the unit.
NOTE: Use one conduit inlet for the power cable, and use the two remaining conduit inlets for any I/O cables as needed. All unused conduit inlets should be sealed with suitable blank plugs (see Figure 15 below).

Figure 13: Typical terminal board (three 4-20mA inputs option)

2.5.2 Cable tie-down posts
There are two cable tie-down posts provided in the Sentinel LCT8 transmitter (see Figure 14 below). These posts enable the user to insert a cable tie through them, and secure the wiring coming into or out of the instrument. The posts rotate on the printed circuit board to provide ease-of-use.
· Power cable tie-down post – use this tie-down post to secure the power cable.
· Optional I/O cable tie-down post – use this tie-down post to secure all I/O cables.

Optional I/O cable tie-down post

Power cable tie-down post

Figure 15: Conduit inlet ports
See Figure 16 on page 11 or Figure 17 on page 11 to locate terminal block TB1 and to connect the line power as follows:
WARNING!
Improper connection of the line power leads, or connecting a Sentinel LCT8 to the incorrect line voltage, may damage the unit. It may also result in hazardous voltages at the meter body and associated piping as well as within the electronics enclosure.
1. Prepare the line power leads by trimming the line and neutral AC power leads (or the positive and negative DC power leads) to a length 0.5 in. (1 cm) shorter than the ground lead. This ensures that the ground lead is the last to detach if the power cable is forcibly disconnected from the meter.
2. Route the cable through one of three conduit inlet ports (see Figure 15 above) and connect the line power leads to terminal block TB1, using the pin number assignments shown in Figure 30 on page 17 and Figure 16 on page 11 or Figure 17 on page 11.

Figure 14: Cable tie-down posts locations
2.5.3 Wiring the line power
The Sentinel LCT8 may be ordered for operation with a power input of either 100-240 VAC or 12­32 VDC. The label on the side of the electronics enclosure lists the required line voltage and power rating for your unit. Be sure to connect the Sentinel LCT8 to the specified line voltage only.
10

Attention European customers!
To meet CE Mark requirements, all cables must be installed as described in Appendix A. CE Mark compliance and high noise environments on page 111.

Figure 16: Wiring the AC line power

2.5.4 Wiring the serial port
The flow transmitter is equipped with a built-in serial communications port. This port is user-selectable to be either an RS232 or RS485 port. For more information on serial communications refer to Panametrics document EIA serial communications (916-054), which is included on the flow manuals CD included with your order. The use of 12-24 AWG (3.3 – 0.2 mm2) twisted pair wiring is recommended for single conductors, and a minimum 18 AWG (1.5 mm2) is recommended for two conductors per terminal.
2.5.4.1 Wiring the serial interface
To wire the serial port, refer to Figure 31 on page 18 and complete the following steps:
1. Disconnect the main power to the meter and remove the wiring access cover.
2. Install the required cable gland in the chosen conduit hole of the electronics enclosure.
3. Feed one end of the cable through the cable gland, wire it to terminal block TB2, and secure it.

Figure 17: Wiring the DC line power
NOTE: All wires shall have a temperature/type rating 10K above the maximum service temperature of 85°C, be stripped back 5/16 in. (8 mm) and torqued to a minimum of 4.4 in.-lb (0.5 N-m).
3. Run the power connections to the power terminal block shown in Figure 16 (AC power) or Figure 17 (DC power) above. The use of 12-18 AWG (3.3 – 0.82 mm2) wire is recommended for the power connections.
4. Strip 1/4-in. of insulation from the end of each of the three line power leads.
5. Route the cable through the chosen conduit hole and connect the line power leads to terminal block TB1, using the pin number assignments shown in Figure 31 on page 18 and Figure 16 on page 11 or Figure 17 on page 11.
6. Leaving a bit of slack, secure the power line with the cable clamp.

TB2
T (RS485­) R (RS485+)
COM SEN 898
Figure 18: Serial connections

Network interface
TD (­) RD (+) SGND (COM)

Attention European customers!
To meet CE Mark requirements, all cables must be installed as described in Appendix A. CE Mark compliance and high noise environments on page 111.
4. If the wiring of the unit has been completed, reinstall the wiring access cover and tighten the set screw.

WARNING!
Make sure both covers, with their o-ring seals, are installed, and the set screws tightened, before applying power in a hazardous environment.
7. After the line power has been connected to the flow transmitter, replace the side cover, tighten the set screw using a 2.5 mm hex wrench and proceed to the next section.
11

2.5.5 Wiring the modbus communications line (optional)
The Sentinel LCT8 uses the RS485 interface with modbus communications protocol for a maximum line distance of up to 4000 ft (1200 m). Panametrics recommends using shielded 18-24 AWG (0.82 – 0.2 mm2) cable having a characteristic impedance of 120 ohms, with 120-ohm termination at each end of the communications line. This interface is also user-configurable as an RS232 interface. Connect the two leads and the shield of the modbus line to the NET section of terminal block TB2 in the flow meter. See Figure 13 on page 31, Table 2 on page 105 and Figure 31 on page 18.
2.5.6 Wiring the alarm relay
NOTE: The alarm relay can be wired as either normally open (NO) or normally closed (NC).
An alarm relay should be wired for fail-safe operation. In fail-safe mode, the alarm relay is constantly energized, except when it is triggered, or a power failure or other interruption occurs. See Figure 19 below for the operation of a normally open alarm relay in fail-safe mode. Connect the alarm relay in accordance with the wiring instructions shown on the terminal board label (see Figure 13 on page 31 and Figure 29 on page 16). For a wiring diagram see Figure 31 on page 18.
Fail-safe (not triggered)
NO C
NC
Alarm monitoring
device
Fail-safe (triggered or power failure)
NO C
NC
Alarm monitoring
device
Figure 19: Fail-safe operation
The use of 12-24 AWG (3.3 – 0.2 mm2) is recommended for single conductor wiring, and 16-24 AWG (1.5 – 0.2 mm2) is recommended for two conductors per terminal.
12

2.5.7 Wiring the 4-20mA analog input (optional)
1. Disconnect the main power to the flow meter and remove the wiring access cover.
2. Install a cable gland in the chosen conduit hole of the electronics enclosure and feed a standard twisted-pair cable through this conduit hole.
3. Locate the 26-pin terminal block (TB2) in Figure 29 on page 16 and wire the I/O terminal as indicated on the label inside the wiring access cover (see Figure 13 on page 31 and Figure 29 on page 16). For a wiring diagram, see Figure 31 on page 18.
4. Secure the cable clamp.
Attention European customers!
To meet CE Mark requirements, all cables must be installed as described in Appendix A. CE Mark compliance and high noise environments on page 111.
5. If wiring of the unit has been completed, reinstall the side cover on the enclosure and tighten the set screw.
The analog input option provides either three isolated 4-20mA analog inputs (designated as Ain1, Ain2 and Ain3) or two isolated 4-20mA analog inputs and one RTD input (designated as Ain1, Ain2 and RTD1). Each of the 4-20mA inputs includes a 24 VDC power supply for looppowered transmitters. The inputs may be used to process temperature, density and pressure signals.
Note: To enter programming data during operation of the Sentinel LCT8, it will be necessary to know which input is assigned to which process parameter. This information should be entered in Appendix C. Modbus register map on page 117.
The analog inputs, which have an impedance of 118 ohms, should be connected with standard twisted-pair wiring. Power to the transmitters may be supplied either by the internal 24 VDC power supply on the analog input terminal or by an external power supply. Figure 20 on page 13 shows typical wiring diagrams, with and without an external power supply, for one of the analog inputs. Figure 21 on page 13 shows 4-wire RTD 100 input wiring. Wire the analog inputs as shown on the label in the enclosure side cover (see Figure 13 on page 31 and Figure 29 on page 16). Terminal locations are shown in Figure 22 on page 13 through Figure 25 on page 13.
The use of 12-24 AWG (3.3 – 0.2 mm2) is recommended for single conductor wiring, and 16-24 AWG (1.5 – 0.2 mm2) is recommended for two conductors per terminal.

RTN1 RTN1 RTN2 RTN2
S­ RTN
RTN1 RTN1 RTN2 RTN2
S­ RTN
RTN1 RTN1 RTN2 RTN2
S­ RTN

With external power supply

Analog input
Ain RTN Ain
+24V

24 VDC power supply

­

Transmitter

+ IN ­ OUT

Sensor

Powered transmitter

­

AIN3 AIN2 AIN1

RTN1
RTN1 RTN2
RTN2 RTN3
RTN3

• You can wire to either RTN1 TB connection.

RTN1
RTN1 RTN2
RTN2 RTN3
RTN3

Sentinel LCT8 provides +24VDC for the transmitter

­+

AIN3 AIN2 AIN1

+24V1
AIN1 +24V2
AIN2 +24V3
AIN3

+24V1
AIN1 +24V2
AIN2 +24V3
AIN3

With internal power supply

Analog input

Transmitter

Ain RTN Ain
+24V

­ OUT + IN

Sensor

Figure 20: Analog input wiring diagram

Figure 23: Terminal locations for analog transmitter use

RTD1 AIN2 AIN1

RTD1 AIN2 AIN1

RTD1 AIN2 AIN1

RTN1 RTN1 RTN2 RTN2 RTN3 RTN3
RTN1 RTN1 RTN2 RTN2 RTN3 RTN3
RTN1 RTN1 RTN2 RTN2 RTN3 RTN3

TB2/RTD1

CUR +S

­S RTN

Figure 21: 4-Wire RTD input wiring diagram

AIN3 AIN2 AIN1

AIN3 AIN2 AIN1

RTD

Analog input 1

Analog input 2

RTD input 3

Figure 24: Terminal locations for 2 analog input and 1 RTD input option

AIN3 AIN2 AIN1

RTN Sense return
Current Sense

4-Wire RTD AIN2 AIN1

Sense Return Current Sense

3-Wire RTD AIN2 AIN1

RTN1
RTN1 RTN2
RTN2 S­
RTN

*You can wire to either RTN1 TB connection.

Add jumper

+24V1
AIN1 +24V2
AIN2 CUR
S+

+24V1 AIN1 +24V2 AIN2 +24V3 AIN3
+24V1 AIN1 +24V2 AIN2 +24V3 AIN3
+24V1 AIN1 +24V2 AIN2 +24V3 AIN3

Analog input 1

Analog input 2

Analog input 3

Figure 22: Terminal locations for 3 analog input option

Figure 25: Terminal locations for 4-wire and 3-wire RTD use

+24V1 AIN1 +24V2 AIN2 CUR S+
+24V1 AIN1 +24V2 AIN2 CUR S+
+24V1 AIN1 +24V2 AIN2 CUR S+

RTN1
RTN1 RTN2
RTN2 S­
RTN

+24V1
AIN1 +24V2
AIN2 CUR
S+

13

2.5.8 Wiring the frequency/totalizer output
Figure 26 below shows sample wiring diagrams of the frequency/totalizer output circuit for open drain and pushpull configurations. The use of 12-24 AWG (3.3 – 0.2 mm2) is recommended for single conductor wiring, and 16-24 AWG (1.5 – 0.2 mm2) is recommended for two conductors per terminal.

Sentinel LCT8

Frequency/totalizer output (open drain)

Counter

OUT RTN

Volts + (Int. Pwr. Sup.) Load Volts (Common)

2.5.9 Wiring the 4-20 mA analog output
The standard configuration of the flow transmitter includes an isolated 4-20 mA analog output. Connections to this output may be made with standard 12-24 AWG (3.3 – 0.2 mm2) twisted-pair wire for a single conductor, and 16-24 AWG (1.5 – 0.2 mm2) wire for a two-conductor connection, but the current loop impedance for these circuits must not exceed 1000 ohms. To wire the analog outputs, complete the following steps:
1. Disconnect the main power to the flow meter and remove the enclosure side cover.
2. Install the required cable clamp in the chosen conduit hole on the side of the electronics enclosure.
3. Locate the 26-pin terminal block (TB2) shown in Figure 30 on page 28, and wire the I/O terminal as indicated on the label inside the wiring access cover (see Figure 13 on page 31 and Figure 29 on page 16). For a wiring diagram see Figure 27 on page 14 or Figure 28 below.

Sentinel LCT8

Frequency/totalizer output (push-pull)

Counter

+5V 270
OUT RTN

IN Common

Figure 26: Totalizer and frequency output wiring Table 2: Wiring the TB2 I/O terminal block

Table 2: Wiring the TB2 I/O terminal block

I/O Pin #

Function

F/T1+

Freq 1/totalizer 1 OUT

F/T1­

Freq 1/totalizer 1 RTN

F/T2+

Freq 2/totalizer 2 OUT

F/T2­

Freq 2/totalizer 2 RTN

NET R (+)

MODBUS­RTU RS232 (R)/RS485 (+)

NET T (­)

MODBUS­RTU RS232 (T)/RS485 (­)

NET COM

MODBUS­RTU common

4/20 Monitor

Load

Aout + Flowmeter terminal board
Aout ­ connector

­

24 Volt DC

power

supply

Figure 27: Analog output passive wiring

4/20 Monitor
Load
Figure 28: Analog output active wiring
4. Secure the cable clamp.

Aout + Flowmeter terminal board
Aout ­ connector

Attention European customers!
To meet CE Mark requirements, all cables must be installed as described in Appendix A. CE Mark compliance and high noise environments on page 111.

5. If wiring of the unit has been completed, reinstall the wiring access cover on the enclosure and tighten the set screw.

14

2.6 Operation
After the Sentinel LCT8 has been completely installed and wired, proceed to Chapter 3. Programming on page 21, to configure the flow meter.
WARNING! Make sure both covers, with their o-ring seals, are installed, and the set screws tightened, before applying power in a hazardous environment.
Only properly trained personnel are allowed to operate this vessel at the following conditions:

2.6.3 Shutdown
While the Sentinel LCT8 is intended for continuous service there are occasions where shutdown is required. There are no special requirements specifically for shutdown. The system should be de-energized prior to troubleshooting and any pressure build-up should be relieved.
2.6.4 Troubleshooting
Refer to Chapter 5. Troubleshooting on page 89, for a list of error codes and troubleshooting steps. For any other inquiries or assistance with troubleshooting the Sentinel LCT8, please consult Panametrics.

2.6.1 Startup
The Sentinel LCT8 does not have any specific startup requirements after it has been properly installed into the piping system. Power should be supplied in accordance with local and national electrical codes. The pipeline does not need to be full of fluid for the system to be powered on.
2.6.2 Normal operation
This pressure vessel is intended to measure fluid flow under normal operation. There are no moving parts. The transmitter will make continuous measurements of the flow along with ancillary inputs of temperature and pressure for density compensation. The transmitter will output readings through any of several available output options (4-20mA, pulse out, modbus, etc.). If any errors occur they will be reported out as well.

15

Front Display
Wiring Access Cover
Figure 29: SEN898 electronics enclosure – front display and wiring access cover 16

USB J1

­ +
COM NC NO

J2 TB1
RJ45 Ain3 Ain2 Ain1

in/R2
in/R2
in/R2 Tx Rx Com Aout+ Aout­ F/T1+ F/T1­

ALM2 TB3 ALM1
I/O TB2

Figure 30: SEN898 electronics enclosure – terminal block layout 17

Figure 31: SEN898 electronics – wiring diagram (ref. dwg #702-884) 18

(2) CABLE TIE DOWN POINTS

MODBUS NETWORK RS232/485

T/R/+ COM

MODBUS (TRANSMIT / DATA -) MODBUS (RECEIVE / DATA +) MODBUS COMMON

(±15VDC, 200mA)

SEE NOTES 1 & 3

DIGITAL INPUT

Din+

TOTALIZER GATE SIGNAL

Din RTN TOTALIZER GATE RETURN

(5VDC, 100mA)

SEE NOTES 1 & 3

ALM2 TB3
ALM1

ALARM CONNECTORS

I/O

TB2

ALM1:

NO NORMALLY OPENED NC NORMALLY CLOSED COM COMMON

ALM2:
NO NORMALLY OPENED NC NORMALLY CLOSED COM COMMON
AC (120VAC, 5A) DC (28VDC, 5A) SEE NOTES 1 & 3

AIN1
AIN2
AIN3 T (-) R (+) Com Aout+ Aout­ F/T1+ F/T1­

RTN1 RTN1 RTN2 RTN2 RTN3 RTN3 R (+)
T (­) Com Din+
F/T2+ F/T2­

­
COM NC NO

(3) 3/4″ NPT CABLE GLANDS PORTS (CABLE ENTRY ON OPPOSITE SIDE OF ENCLOSURE)
GROUNDING SCREWS FOR 2-WIRE SHIELD CABLES (RECOMMENDED) 8-32 SCREW

J2

TB1

NET AIN3 AIN2 AIN1

USB J1

FREQUENCY/TOTALIZER OUTPUT
F/T1+ OUTPUT1 SIGNAL F/T1- OUTPUT1 RETURN F/T2+ OUTPUT2 SIGNAL F/T2- OUTPUT2 RETURN
(100VDC, 1A)
SEE NOTES 1 & 3)

ANALOG OUTPUT
AOUT+ 4-20mA POS TERMINAL AOUT- 4-20mA NEG TERMINAL
POWERED OR UNPOWERED SOFTWARE SELECTABLE SEE NOTES 1 & 3

CUSTOMER GROUND

PANALINK RS232/485

T/R/+ COM

TRANSMIT / DATARECEIVE / DATA+ COMMON

SEE NOTES 1 & 3

MODBUS / TCP CONNECTOR (NON-IS ONLY)

POWER CORD TERMINAL

AC OPTION:

L1 LINE 1

L2/N LINE 2/NEUTRAL

G

GROUND

(264VAC, 0.82A)

SEE NOTES 2 & 3

DC OPTION:
+ (+) – (-)
GROUND (30VDC, 2A)
SEE NOTES 2 & 3

USB CONNECTOR (NON-IS ONLY) (SERVICE USE ONLY)
NOTES: 1. I/O CONNECTIONS WIRE GAUGE RANGE 12-24 AWG (3.3 – 0.2 mm 2). 2. AC AND DC CONNECTIONS WIRE GAUGE RANGE 12-18 AWG (3.5 – .82 mm 2). 3. MAXIMUM TERMINAL RATINGS [VOLTAGE, CURRENT].

(3) ANALOG INPUTS OPTION (AAA)
ANALOG INPUT 1
AIN1 ANALOG IN +24V1 24VDC RTN1 24VDC RETURN RTN1 ANALOG RETURN
ANALOG INPUT 2
AIN2 ANALOG IN +24V2 24VDC RTN2 24VDC RETURN RTN2 ANALOG RETURN
ANALOG INPUT 3
AIN3 ANALOG IN +24V3 24VDC RTN3 24VDC RETURN RTN3 ANALOG RETURN
SEE NOTES 1 & 3

(2) ANALOG INPUTS & RTD INPUT OPTION (AAR)
ANALOG INPUT 1
AIN1 ANALOG IN +24V1 24VDC RTN1 24VDC RETURN RTN1 ANALOG RETURN

ANALOG INPUT 2
AIN2 ANALOG IN +24V2 24VDC RTN2 24VDC RETURN RTN2 ANALOG RETURN

RTD INPUT 1

S+ CUR SRTN

SENSE + CURRENT OUT SENSE CURRENT RETURN

SEE NOTES 1 & 3

Figure 32: Wiring LCT8 to SEN898 electronics – cross plane (6″ – 24″ flowcell), local mount (ref. dwg #702-2041) 19

20

Chapter 3. Programming
3.1 Introduction
The Sentinel LCT8 flow transmitter includes a user program that provides access to the various programmable features of the instrument. This chapter describes step-by-step configuring instructions using the internal keypad shown in Figure 33 below.
3.1.1 HMI features

Clear totals key
Fault indicator LCD display User intervene indicator
Escape key Left arrow key

Power indicator
Totalizer lock indicator
Keypad lock indicator Enter key
Up arrow key Right arrow key Down arrow key

Figure 33: Sentinel LCT8 HMI
The Sentinel LCT8 HMI includes the seven keys listed in Table 3 below.

Key symbol
CLR TOTALS

Key name Clear totals key Escape key Enter key Left arrow key Right arrow key Up arrow key Down arrow key

Table 3: Keypad symbols and descriptions Functions To clear or reset accumulated totals To cancel a numeric entry change, or exit a menu or as back key
To accept a numeric entry or select a menu option To navigate among menu choices or pages or set cursor position To navigate among menu choices or pages or set cursor position To navigate among menu choices or pages or increment numeric entries To navigate among menu choices or pages or decrement numeric entries

21

3.1.2 Indicator lights
The Sentinel LCT8 HMI includes the following indicator lights:
· The power indicator is normally lit when the instrument is powered on.
· The keypad lock indicator is lit if the internal keypad lock-out switch has been engaged.
NOTE: When the keypad lock indicator is lit, the keypad is not functional.
· The totalizer lock indicator is lit if the internal totals lock-out switch has been engaged.
NOTE: When the total lock indicator is lit, it is not possible to reset totals with the Clear totals key or through programming.
· If the fault indicator is lit, an instrument fault has been detected. This will also cause an error indication to be displayed in the lower right-hand corner of the measurement view screen.
· If the user intervene indicator is lit, an alarm has been triggered and will be kept latched until cleared by the user. See Wiring the alarm relay on page 12 and Inputs/outputs on page 53 for more information.
3.1.3 Totalizer hard switch
The security switches on the front display can be locked, which will lock out the ability to do any programming changes, even from a PC connected to meter, and the totalizer only lockout, which will not allow anyone to reset the totalizer, even from a PC connected to the meter. The front window cover is screwed into place over the display.

Figure 35: Set screw tied with wire seal
All connections can be made through the back cover while still protecting the key pad and the programming.

Figure 36: Back cover section
3.1.4 The magnetic stylus
Each of the keys can be selected using a hand-held magnet called a magnetic stylus, which is included with the meter (see Figure 37 below). By touching the clear window at a key location, that key will be selected and will flash a red light to verify the contact. NOTE: The red LED does not flash if contact is not made. Ensure the front cover is fully tightened.

Figure 34: Front cover screwed
The set screw in the cover can be screwed down to tight up against the enclosure. With the set screw in place, the lead and wire seal can be threaded through the channel in such a way that access to loosen the set screw is completely blocked.
22

Figure 37: Magnetic stylus

3.2 Navigating through the program options

3.2.1 Conventions and guidelines
In this manual, menu navigation is illustrated with graphics that represent the Sentinel LCT8 main display. The color of the boxes and arrows used in these illustrations follow the conventions listed in Table 4 below.

Color code Monochrome code

Table 4: Color code descriptions Description

Red box

Option is visible only when logged in with at least user 1 access

Red arrow

The navigation is only possible when logged in with at least user 1 access

Red dotted arrow

The navigation is only possible when logged in with at least user 1 access. The dotted arrow indicates that all intermediate display changes are not explicitly shown in the diagram.

Green box

Option is visible only when logged in with at least user 3 access

Green arrow

The navigation is only possible when logged in with at least user 3 access

Green dotted arrow

The navigation is only possible when logged in with at least user 3 access. The dotted arrow indicates, that all intermediate display changes are not explicitly shown in the diagram.

Yellow box

Option is visible only when logged in with at least user admin access

Yellow arrow

The navigation is only possible when logged in with at least user admin access

Yellow dotted arrow

The navigation is only possible when logged in with at least user admin access. The dotted arrow indicates, that all intermediate display changes are not explicitly shown in the diagram.

Magenta arrow

The navigation is only possible when logged in with at least display locked access

Magenta dotted arrow

The navigation is only possible when logged in with at least display locked access. The dotted arrow indicates, that all intermediate display changes are not explicitly shown in the diagram.

Blue arrow

Login not required for this navigation

Gray arrow

Used as pointers to notes and guidelines

23

3.2.2 Security access level and privileges
To prevent unauthorized tampering with either the display or the user program, the Sentinel LCT8 has multiple security access codes which grant different access level privileges (see Table 5 below).

Table 5: Security level descriptions

Level Security access Default passcode

Privilege details

0

Full lock

0000 (fixed)

Meter locked, need passcode to unlock for viewing data or configuration.

1

Display locked

2719 (fixed)

Viewing data, select parameters to show in the measurement view.

2

User 1

3

User 2

0001 0002

Basic user configuration privileges

4

User 3

5

User 4

0003 0004

Basic + power user configuration privileges

6

User admin

0005*

Basic + power + admin user configuration privileges

*Panametrics recommends user admin to set new passcodes for each user access level.

3.3 Measurement view, security and page overview

The initial screen displayed upon meter startup is known as measurement view. The elements of measurement view are shown in Figure 38 below, with gray arrows pointing to each element.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Note the following:
· When logged in to display locked access level, the user can choose the measurement to be displayed in measurement view from a list of options.
· If there are no errors on the channel chosen for measurement view, the error indicator at the bottom right of the display is blank.

Channel indicator for the displayed
measurement value

Name of the displayed measurement value

Current security access level indicator
Software version number

Unit of the measurement value
Figure 38: Measurement view 24

Measurement value
Error indicator (specific to the channel in measurement view)

3.3.1 Unlocking the meter
NOTE: The user needs to enter a valid passcode to unlock the meter.
To unlock the display and/or the user program, refer to Figure 39 below and complete the following steps:
1. From measurement view, press the [ ] , , and [ ] keys in sequence (login is not required).
2. Use the [] and [] keys to highlight the desired digit in the passcode display. Then, use the [] and [] keys to increment or decrement the value for that digit. Repeat this process until all four digits of a valid passcode have been entered.
NOTE: The example passcode shown in Figure 39 below is the factory default user4 passcode. Your actual passcode may differ.

3. After the passcode has been entered, either press the
[ ] key to cancel the unlock sequence and return to the locked measurement view or press the [ ] key to login
an the unlocked measurement view.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
After unlocking the meter with the required level of security, the meter will remain active at this security level until the security level is changed or the meter keypad inactivity time limit (as set by a user admin) is exceeded.

Press in
sequence

Press key to cancel
NOTE: The passcode in the picture indicates the default passcode for user 4 level. The actual passcodes may vary. NOTE: The arrows in this figure are blue and indicate login is not required to follow these steps.
Figure 39: Steps to unlock the meter

Use or arrow keys to position the cursor to the digit. Use or arrow keys to increment or decrement the digits.
Press key to login
Icon on the upper right corner indicates successful login to user 4 level.
25

3.3.2 Primary pages
The meter menu has nine primary pages. It is important to know how to navigate to these pages, as they provide access to the various features, options and configurations of the meter. A typical measurement view (unlocked at the admin level) and examples of the nine primary pages are shown in Figure 40 below.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

1. From measurement view, press the [ ] key to go to page 2 (at least user1 access level is required).
2. To navigate between pages, use the [] and [] keys.
3. From any page, press the [ ] key to return to measurement view.
NOTE: The example pages shown above are for admin level access. The options may vary for user access levels, and some pages will be entirely blank for user1 and user2 access levels.

General instructions
From measurement view press key
to go to page 2.
· To navigate between pages, use or keys.
· From any page, back to
measurement view press key

Press key

NOTE: The options shown in the pages are based on user admin access. User 1 and user 2 or user 3 and user 4 options vary. Some pages will appear blank to user 1 and user 2.
The [ ] highlights the current page,

Page 1: Manufacturing tests
to page 3

Page 2: Device info

Page 4: Configuration (generic)
to page 6

Page 5: IO

Page 3: Program

to page 4

Page 6: Display

to page 7

Page 7: Calibration (loop)

Page 8: User configurations.

Page 9: Factory

NOTE: The arrows in this figure are red and indicate at least user 1 access level is required to follow these steps.

Figure 40: Primary pages

26

3.3.3 Changing the access level
The user can change the access level in two ways: · From measurement view · From user configurations
3.3.3.1 Changing the access level from measurement view
To change the access level from measurement view, refer to Figure 41 below and complete the following steps: NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

1. From measurement view, use the [] and [] keys to highlight the security level icon (at least display locked access level is required to make these changes).
2. Press the [ ] key to access the security options list.
3. Use the [] and [] keys to highlight the desired security level option.
4. Press the [ ] key twice confirm your selection.
NOTE: The example screens shown above are for admin level access. The options vary for other access levels.

NOTE: The options shown are

based on user admin access. Other access level options vary.

Use or arrow to highlight the
“security level” option you want to
select and press twice to confirm
selection.

NOTE: The arrows in this figure are magenta and indicate at least “display locked” access level is required to follow these steps.
Figure 41: Setting the security level from measurement view
27

3.3.3.2 Changing the access level from user configurations

To change the access level from user configurations, refer to Figure 42 below and complete the following steps: NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

1. Refer to Primary pages on page 26 and navigate to page 8: user configurations.
2. Use the [] and [] keys to highlight the set security
option. Then, press the [ ] key to access the security
options list (at least user1 access level is required).

3. Use the [] and [] keys to highlight the desired security level option.
4. Press the [ ] key twice confirm your selection.
NOTE: The example screens shown above are for admin level access. The options vary for other access levels.

Use or arrow to highlight the “security level” option you want to select
and press twice to confirm selection.
NOTE: The options shown are based on user admin access. Other access level options vary.
NOTE: The arrows in this figure are red and indicate at least user 1 access level is required to follow these steps.
Figure 42: Setting the security level from user configurations
28

3.4 Programming menu options

3.4.1 Channel programming
The channel program allows the entry of configuration data and settings adjustments for each physical channel.
3.4.1.1 Activating a channel/path/CHX (status)
A channel/path should be activated when the unit is received, however, verify that the channel/path is active before trying to acquire data. To activate a channel/path, refer to Figure 43 below and complete the following steps:
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

1. Refer to Primary pages on page 26 and navigate to page 3: program.
2. Use the [] and [] keys to highlight the desired
channel. Press the [ ] key twice to confirm
your choice.
3. Use the [] and [] keys to highlight the channel
status option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
4. Use the [] and [] keys to highlight either the
on or off option. Then, press the [ ] key twice to confirm your selection or press the [ ] key to
keep the original setting. You will then return to the previous screen.

NOTE: To select channel 2 to channel 8, highlight the option
and press key twice to
confirm the selection. Once you confirm your selection you will see the next screen.

Legend Red Green Green

At least user 1 level access required to follow the step. At least user 3 level access required to follow the step. Option only visible to user 3 or above.

The arrow on the screen usually indicates there are more options below and the arrow can be used to scroll to those options
Figure 43: Activating a channel/path

or
Use or arrow to highlight the “channel status” option you want
to select and press twice to
confirm selection.
29

3.4.1.2 Entering the signal parameters
Use the signal submenu, to set the Sentinel LCT8 transducer signal parameters.
IMPORTANT The factory default signal parameters are suitable for most applications. Consult the factory before changing any of these settings.
To configure the signal parameters, refer to Figure 44 below and complete the following steps:
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to Page 3: program.
2. Use the [] and [] keys to highlight the desired channel.

Press the [ ] key twice to confirm your choice.
3. Use the [] and [] keys to highlight the signal option.
Then, press the [ ] key to confirm your selection or press the [ ] key to return to the previous screen.
4. Use the [] and [] keys to highlight the zero cutoff or
the active tw peak pcnt option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to
the previous screen.
NOTE: The zero cutoff parameter causes fluid velocities less than the setpoint to be reported as zero.
5. Enter the desired value for the signal parameter chosen
in the previous step. Press the [ ] key to confirm the new value or press the [ ] key to keep the original value.
You will then return to the previous screen.

NOTE: To select channel 2 to channel 8, highlight the option and press
key twice to confirm
the selection. Once you confirm your selection you will see the next screen.

Legend Red Green Green

At least user 1 level access required to follow the step. At least user 3 level access required to follow the step. Option only visible to user 3 or above.

Use or arrow to highlight the “signal…” if not already highlighted.

The arrow on the screen usually indicates

there are more options

below and the arrow

can be used to scroll to

those options.

or

or
Figure 44: Entering the signal parameters
30

3.4.1.3 Entering the error limits
The error limits option enables setting limits for the acoustic signals. If a signal falls outside these programmed limits, an error code is displayed. To set the error limits, refer to Figure 45 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

NOTE: To select channel 2 to
channel 8, highlight the option
and press key twice to
confirm the selection. Once you
confirm your selection you will
see the next screen.

Legend Red

At least user 1 level access required to follow the step.

Green At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

Use or arrow to highlight the “error limits…” if not already highlighted.

The arrow on the screen usually indicates there are more options below and the arrow can be used to scroll to those options.

Figure 45: Entering the error limits 31

1. Refer to Primary pages on page 26 and navigate to Page 3: program.
2. Use the [] and [] keys to highlight the desired channel.
Press the [ ] key twice to confirm your choice.
3. Use the [] and [] keys to highlight the error limits
option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the previous screen.
4. Use the [] and [] keys to highlight the desired
signal parameter. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
5. Enter the desired error limit for the chosen signal
parameter. Press the [ ] key to confirm the new value or press the [ ] key to keep the original value. In either
case, you will then return to the previous screen.
6. Repeat steps 4 and 5 as necessary, to program additional signal parameter error limits.

3.4.1.4 Understanding the error limits
Note the following information about the Sentinel LCT8 error limits:
· The signal min limit is the minimum acceptable value for the transducer signal received by the Sentinel LCT8. If the signal falls below the programmed limit, the E1: LOW SIGNAL error is displayed.
· The measured velocity value is expected to be within the min velocity and max velocity limits. If the measured velocity is outside the programmed range, a W3: VELOCITY RANGE warning is displayed.
· The amplitude of the received signal is expected to be within the amplitude min and amplitude max. programmed limits. If the signal falls outside these limits, the E5: AMPLITUDE error is displayed.
· If the fluid soundspeed exceeds that entered in the normal mode of fluid submenu by more than the percentage programmed in the NormalMde SoS error limit, the E2: SOUNDSPEED error is displayed.
· If the velocity changes by more than the programmed acceleration error limit from one measurement to the next, the E6: ACCELERATION error is displayed.
· If the SNR is below the programmed SNR error limit, the W24:SNR warning is displayed.
NOTE: Refer to “Table 14” for more details about errors and warnings.

32

3.4.2 Composite programming
The composite program allows entry of configuration data that applies to the composite calculations. The composite configurations are appropriately set for the intended application during commissioning. However, these settings should be verified before data is acquired or whenever the meter reports an error.
NOTE: Composite programming is accomplished via the program primary page (see Figure 40 on page 26).

NOTE: To select composite, highlight the option and
press key twice to
confirm the selection. Once you confirm your selection you will see the next screen.

Legend Red

At least user 1 level access required to follow the step.

Green At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

Use or arrow to highlight
the “tracking” option you want
to select and press twice to
confirm selection.

NOTE: Consult Panametrics factory before choosing normal fluid type1 option or preprogrammed (tracking ) options
Figure 46: Fluid type/tracking configuration

Use arrow to highlight
the “soundspeed max”
option and press and
then adjust the value, if
not already highlighted.

33

3.4.2.1 Fluid type/tracking configuration
It is critical to select the appropriate fluid type/tracking option for the application. Tracking refers to tracking windows, which is used to detect the receive signal when you are unsure of the fluid sound speed, or when the fluid sound speed changes drastically under process conditions. To program the fluid type/tracking options, refer to Figure 46 on page 33 and complete the steps on the next page.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to page 3: program.
2. Use the [] and [] keys to highlight composite in the
list of channels, and press the [ ] key twice to confirm
your choice.
3. Use the [] and [] keys to highlight the fluid option.
Then, press the [ ] key to confirm your selection or press the [ ] key to return to the previous screen.
4. At the next screen, fluid type is the only option and
is already highlighted. Press the [ ] key to confirm this selection or press the [ ] key to return to the
previous screen.

IMPORTANT
Consult the factory before choosing either the normal fluid type or preprogrammed tracking options.
5. Use the [] and [] keys to highlight tracking. Then, press
the [ ] key twice to confirm your selection or press the [ ] key to return to the previous screen.
6. Use the [] and [] keys to highlight either
preprogrammed or other, then, press the [ ] key twice to confirm your selection or press the [ ] key to return to
the previous screen.
a. If preprogrammed was selected, use the [] and [] keys to highlight the desired option. Press the [ ] key twice to confirm your selection or press the [ ] key to
cancel. You will return to the previous screen.
b. If other was selected, use the [] and [] keys to
highlight the Soundspeed min option. Press the [ ] key to confirm your selection. Enter the desired value
and press the [ ] key to confirm your entry or press the [ ] key to cancel the change. When, you return to
the previous screen, repeat the process to enter the Soundspeed max value.

34

3.4.2.2 Signal parameter configuration
CAUTION!
The SIGNAL default settings are suitable for most applications. Consult the Panametrics factory before changing these settings.
Use the signal submenu to set the parameters that apply compensations and handle noisy signals. To adjust the error Allowed options, refer to Figure 47 below and complete the following steps: NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to page 3: program.
2. Use the [] and [] keys to highlight composite in the
list of channels, and press the [ ] key twice to confirm
your choice.

3. At the next screen, use the [] and [] keys to highlight
the signal option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
4. At the next screen, use the [] and [] keys to highlight
the error allowed option. Then, press the [ ] key to confirm your selection or press the [ ] key to return
to the previous screen.
5. At the next screen, enter the desired value and press
the [ ] key to confirm your entry or press the [ ] key
to cancel the change.

NOTE: To select composite, highlight the
option and press key twice to confirm
the selection. Once you confirm your
selection you will see the next screen.

NOTE: Consult Panametrics factory before changing defaults

Legend Red

At least user 1 level access required to follow the step.

Green At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

Figure 47: Setting the error allowed

35

Turning dimensional compensation on enables the meter to perform calculations that correct for geometric changes in the flowcell caused be temperature variations. This may be helpful in applications where the temperature in or around the flowcell is known to vary significantly. To select the dimensional compensation status, refer to Figure 48 below and complete the following steps:
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to page 3: program.
2. Use the [] and [] keys to highlight composite
in the list of channels, and press the [ ] key twice
to confirm your choice.

3. At the next screen, use the [] and [] keys to
highlight the signal option. Then, press the [ ] key to confirm your selection or press the [ ] key
to return to the previous screen.
4. At the next screen, use the [] and [] keys to highlight the compensation status option. Then,
press the [ ] key to confirm your selection or press the [ ] key to return to the previous screen.
5. At the next screen, use the [] and [] keys to
highlight on or off and press the [ ] key twice to confirm your status selection or press the [ ] key
to cancel the change.

NOTE: To select composite, highlight the option and press
key twice to confirm the selection. Once you confirm
your selection you will see the next screen.

NOTE: Consult Panametrics factory before changing defaults

Legend Red

At least user 1 level access required to follow the step.

Green At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

Figure 48: Setting the dimensional compensation status

36

3.4.3 setting up the input data feeds
Use the inputs submenu to select where the temperature, pressure and density inputs are used. To set up the desired inputs, refer to Figure 49 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Legend Red Green Green

At least user 1 level access required to follow the step. At least user 3 level access required to follow the step. Option only visible to user 3 or above.

Use or arrow to highlight the “inputs…” if not already highlighted.

Use arrow to highlight the other “Pressure” or “density” options. Menu structure is identical to temperature input.

NOTE: To select composite, highlight the
option and press key twice to confirm
the selection. Once you confirm your
selection you will see the next screen.

Use or arrow to highlight
the “temperature input” option
you want to select and press
twice to confirm selection.

Figure 49: Temperature, pressure and density data feeds 37

1. Refer to Primary pages on page 26 and navigate to page 3: program.
2. Use the [] and [] keys to highlight composite in the list
of channels, and press the [ ] key twice to confirm your
choice.
3. At the next screen, use the [] and [] keys to highlight
the inputs option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the previous
screen.
4. At the next screen, use the [] and [] keys to highlight
the desired data feed parameter. Then, press the [ ] key to confirm your selection or press the [ ] key to return to
the previous screen.
NOTE: The following steps are the same for all three data feed parameters.

5. At the next screen, use the [] and [] keys to highlight
the desired option and press the [ ] key twice to confirm your selection or press the [ ] key to return to the
previous screen.
a. If you selected fixed, enter the appropriate value and
press the [ ] key to confirm the new value or press the [ ] key to cancel the change.
b. If you selected modbus, select the desired input
option and press the [ ] key twice to confirm your selection or press the [ ] key to cancel the change.
c. If you selected active, select the desired input option
and press the [ ] key twice to confirm your selection or press the [ ]key to cancel the change.

3.4.4 Setting up the API
NOTE: API is optional and this section is applicable only if the API option was ordered.
Use the API setup submenu by completing the following steps:
1. Refer to Primary pages on page 26 and navigate to page 3: program.
2. Use the [] and [] keys to highlight composite in the
list of channels, and press the [ ] key twice to confirm
your choice.
3. Proceed to the following subsections to complete the setup.

3.4.4.1 Choosing the API table type
To select the appropriate API table type, refer to Figure 50 on page 39 and complete the steps on the next page.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. At the next screen, use the [] and [] keys to highlight
the API setup option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
2. At the next screen, use the [] and [] keys to highlight
the API table type option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to
the previous screen.
3. At the next screen, use the [] and [] keys to highlight the table type appropriate for your application. Then,
press the [ ] key twice to confirm your selection or press the [ ] key to return to the previous screen.
4. At the next screen, with thermal expansion coefficient
(TEC) highlighted, press the [ ] key to confirm the selection or press the [ ] key to return to the previous
screen.
5. Enter the appropriate value and press the [ ] key to confirm the new value or press the [ ] key to cancel the
change.

38

NOTE: To select composite,
highlight the option and
press key twice to confirm
selection. Once you confirm
your selection you will see the
next screen.

Use or arrow to highlight “API setup…” if not already highlighted.

Use or arrow to highlight the
“API table type” option you want
to select and press twice to
confirm selection.

Legend Red Green Green

At least user 1 level access required to follow the step. At least user 3 level access required to follow the step. Option only visible to user 3 or above.

Figure 50: API table type selection 39

3.4.4.2 Setting the API condition – base condition
To set the API Base condition, refer to Figure 51 below and complete the steps on the next page.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. At the next screen, use the [] and [] keys to highlight
the API setup option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
2. At the next screen, use the [] and [] keys to highlight
the API conditions option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to
the previous screen.
3. At the next screen, use the [] and [] keys to highlight
the base condition option. Then, press the [ ] key to

confirm your selection or press the [ ] key to return to
the previous screen. 4. At the next screen, use the [] and [] keys to highlight
the desired base condition option. Then, press the [ ] key twice to confirm your selection or press the [ ] key
to return to the previous screen. If user defined was selected as the base condition, complete the following additional steps: 5. At the next screen, with user def base temp highlighted,
press the [ ] key to confirm the selection or press the [ ] key to return to the previous screen. 6. Enter the appropriate value and press the [ ] key to confirm the new value or press the [ ] key to cancel
the change.
Use or arrow to highlight the “API conditions…” if not already highlighted..

NOTE: To select composite,
highlight the option and press
key twice to confirm the selection.
Once you confirm your selection
you will see the next screen.

Use or arrow to highlight the “API setup…” if not already highlighted..

Legend Red

At least user 1 level access required to follow the step.

Green At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

Use or arrow to highlight the
“API base condition” option you
want to select and press twice
to confirm selection.

Figure 51: API conditions – base condition 40

Setting the API condition – flow measurement at
To set the API base condition, refer to Figure 52 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Legend Red

At least user 1 level access required to follow the step.

Green At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

NOTE: To select composite, highlight the
option and press key twice to confirm
the selection. Once you confirm your
selection you will see the next screen.

Use or arrow to highlight the “API setup…” if not already highlighted..

Use or arrow to highlight the “API conditions…” if not already highlighted..

Use or arrow to highlight the “flow measure at…” if not already highlighted..
Use or arrow to highlight
the “pres(alt)” and press to
update value.

Figure 52: API conditions – flow measurement at

Use arrow to highlight the
“pres(obs)” or “dens(obs)”
and press to update value.

Use arrow to highlight
and press twice to
confirm selection.

41

1. At the next screen, use the [] and [] keys to highlight
the API setup option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
2. At the next screen, use the [] and [] keys to highlight
the API conditions option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to
the previous screen.
3. At the next screen, use the [] and [] keys to highlight
the flow measure at option. Then, press the [ ] key to confirm your selection or press the [ ] key to return to
the previous screen.
4. To set the observed conditions:
a. Use the [] and [] keys to highlight the observed
option. Then, press the [ ] key twice to confirm your selection or press the [ ] key to return to the previous
screen.
b. Use the [] and [] keys to highlight one of the
available variables. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
c. Enter the appropriate value for your application and
press the [ ] key to confirm the new value or press the [ ] key to cancel the change.
d. Repeat the previous two steps until all of the desired variables have been set for your application

5. To set the alternate conditions:
a. Use the [] and [] keys to highlight the alternate
option. Then, press the [ ] key twice to confirm your selection or press the [ ] key to return to the previous
screen.
b. Use the [] and [] keys to highlight one of the
available variables. Then, press the [ ] key to confirm your selection or press the [ ] key to return to the
previous screen.
c. Enter the appropriate value for your application and
press the [ ] key to confirm the new value or press the [ ] key to cancel the change.
d. Repeat the previous two steps until all of the desired variables have been set for your application

42

3.5 Generic meter configuration
This section describes the procedures for configuring the following: · Units (see below) · Communication (see Setting up communication
on page 44) · Reset totals (see Setting reset totals on page 50) · Totalize on error (see Setting up totalizer error handling
on page 51) · Date/time (see Setting the date and time on page 52)

3.5.1 Selecting the preferred unit type
To select the desired units, refer to Figure 53 below and complete the following steps:
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to page 4: configuration (generic).
2. Use the [] and [] keys to highlight units and press the
[ ] key to confirm your choice.
3. At the next screen, use the [] and [] keys to highlight
either the metric or English option. Then, press the [ ] key twice to confirm your selection or press the [ ] key
to cancel and return to the previous screen.

Legend Green

At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Red

Option only visible to user 1 or above.

Green Option only visible to user 3 or above.

Use or arrow to highlight the preferred “units” option and press
twice to confirm selection.
Figure 53: Unit type selection
43

3.5.2 Setting up communication
This section described how to configure Panalink and modbus communication.
3.5.2.1 Setting up Panalink communications To set up Panalink communication, refer to Figure 54 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Legend Green

At least user 3 level access required to follow the step.

Dotted green

Not all transitional screens are shown (at least user 3 level access required).

Red

Option only visible to user 1 or above.

Green

Option only visible to user 3 or above.

Use or arrow to highlight the
preferred option and press
twice to confirm selection.
Figure 54: Communication – Panalink setup
44

Use arrow to highlight “stop bits”
or “data bits” options and press to
make further selection. (Navigation
pattern similar to parity options.)

1. Refer to Primary pages on page 26 and navigate to page 4: configuration (generic).
2. Use the [] and [] keys to highlight communication and
press the [ ] key to confirm your choice.
3. At the next screen, use the [] and [] keys to highlight
the Panalink option. Then, press the [ ] key to confirm your selection or press the [ ] key to cancel and return
to the previous screen.
4. Set the various parameters as follows:
a. Use the [] and [] keys to highlight the node ID
option and press the [ ] key to confirm your selection. Then, enter the desired value and press the [ ] key to confirm the new value or press the [ ] key to cancel
the change and return to the previous screen.
b. Use the [] and [] keys to highlight the interface
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.
c. Use the [] and [] keys to highlight the baud rate
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.

d. Use the [] and [] keys to highlight the parity option
and press the [ ] key to confirm your selection. Then,
select the desired option from the list and press the
[ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the previous screen.
e. Use the [] and [] keys to highlight the stop bits
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.
f. Use the [] and [] keys to highlight the data bits
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the ] key to cancel the change and return to the
previous screen.

45

3.5.2.2 Setting up modbus communications – additional option

NOTE: Modbus is optional and this section is applicable only if the modbus option was ordered.
The Sentinel LCT8 supports digital communications using the MODBUS/RTU protocol, with 2-wire RS-485 or 3-wire RS-232C as the physical layer interfaces. Baud rate can be specified from 4800 to 19200 bits per second (bps), with

selectable parity and number of stop bits (default = 9600 bps, even parity and 1 stop bit).
To set up modbus communication settings, refer to Figure 55 below and complete the steps on the next page.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Legend Green Red Red Green

At least user 3 level access required to follow the step. At least user 1 access required to follow the step. Option only visible to user 1 or above. Option only visible to user 3 or above.

Use arrow to highlight “modbus” if not already highlighted.

Use or arrow to highlight the preferred”option
and press
twice to confirm selection.
Figure 55: Communication – modbus setup 46

User1 and user2 access have only “stop bits” option visible. So, the or arrow steps are not applicable to these users.

1. Refer to Primary pages on page 26 and navigate to page 4: configuration (generic).
2. Use the [] and [] keys to highlight communication and
press the [ ] key to confirm your choice.
3. At the next screen, use the [] and [] keys to highlight
the modbus option. Then, press the [ ] key to confirm your selection or press the [ ] key to cancel and return
to the previous screen.
4. Set the various parameters as follows:
a. Use the [] and [] keys to highlight the address
option and press the [ ] key to confirm your selection. Then, enter the desired value and press the [ ] key to confirm the new value or press the [ ] key to cancel
the change and return to the previous screen.
b. Use the [] and [] keys to highlight the interface
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.
c. Use the [] and [] keys to highlight the word order
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.

d. Use the [] and [] keys to highlight the baud rate
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.
e. Use the [] and [] keys to highlight the parity option
and press the [ ] key to confirm your selection. Then,
select the desired option from the list and press the
[ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the previous screen.
f. Use the [] and [] keys to highlight the stop bits
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.
NOTE: Additional options after stop bits are not visible at the user-1 and user-2 access levels.

47

To select the units for the volumetric and totalizer output registers, refer to Figure 56 below and complete the steps on the next page.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Legend Green Red Red Green

At least user 3 level access required to follow the step. At least user 1 access required to follow the step. Option only visible to user 1 or above. Option only visible to user 3 or above.
Use arrow to highlight “modbus” if not already highlighted.

Use arrow to
highlight the
preferred”option
and press
twice to confirm
selection.

Figure 56: Units selection for volumetric and totalizer output registers 48

1. Refer to Primary pages on page 26 and navigate to page 4: configuration (generic).
2. Use the [] and [] keys to highlight communication and
press the [ ] key to confirm your choice.
3. At the next screen, use the [] and [] keys to highlight
the modbus option. Then, press the[ ] key to confirm your selection or press the [ ] key to cancel and return
to the previous screen.
4. Set the various parameters as follows:
a. Use the [] and [] keys to highlight the volumetric
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.
b. Use the [] and [] keys to highlight the total units
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.

c. Use the [] and [] keys to highlight the std
volumetric option and press the [ ] key to confirm
your selection. Then, select the desired option from
the list and press the [ ] key twice to confirm the selection or press the [ ] key to cancel the change
and return to the previous screen.
d. Use the [] and [] keys to highlight the StdTotal units
option and press the [ ] key to confirm your selection.
Then, select the desired option from the list and press
the [ ] key twice to confirm the selection or press the [ ] key to cancel the change and return to the
previous screen.
IMPORTANT
Modbus communications are now set up and ready to use. See Appendix C. Modbus register map on page 117.

49

3.5.3 Setting reset totals
IMPORTANT If the totalizer lock is enabled, the previous totals will not be cleared by this process.
To reset the totals, refer to Figure 57 below and proceed as follows: NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

1. Refer to Primary pages on page 26 and navigate to Page 4: configuration (generic).
2. Use the [] and [] keys to highlight reset totals and
press the [ ] key twice to confirm your choice.
3. At the next screen, use the [] and [] keys to highlight either the reset both or reset fwd totals or reset rev totals
option. Then, press the [ ] key to confirm your selection or press the [ ] key to cancel and return to the previous
screen.

Legend Green

At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Red

Option only visible to user 1 or above.

Green Option only visible to user 3 or above.

Figure 57: Resetting the fwd and/or rev totals

50

3.5.4 Setting up totalizer error handling
To select the totalize on errors options, refer to Figure 58 below and proceed as follows:
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to Page 4: configuration (generic).
2. Use the [] and [] keys to highlight totalize on errors
and press the [ ] key to confirm your choice.
3. Use the [] and [] keys to highlight the desired channel
(channels 1 to 8, or composite). Then, press the [ ] key twice to confirm your selection or press the [ ] key to
cancel and return to the previous screen.

4. Use the [] and [] keys to select either the yes or no
option and press the [ ] key twice to confirm your selection or press the [ ] key to cancel and return to the
previous screen.
5. Repeat the previous step as many times as necessary to configure additional channels.

Legend Green

At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Red

Option only visible to user 1 or above.

Green Option only visible to user 3 or above.

Use or arrow to highlight the
preferred option and press
twice to confirm selection.

Figure 58: Selecting the totalize on errors options 51

3.5.5 Setting the date and time
To set the date/time, refer to Figure 59 below and proceed as follows:
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to page 4: configuration (generic).
2. Use the [] and [] keys to highlight date/time and press
the [ ] key to confirm your choice.
3. When the screen with the current date/time opens, press
the [ ] key to edit the setting or press the [ ] key to
cancel and return to the previous screen.

4. If you chose to edit the setting, use the [] and [] keys
to highlight the desired character. Then, use the [] and
[] keys to increment or decrement the value for that
character. Repeat this process until all characters of the
date/time have been set as desired. Then, press the [ ] key to confirm the new setting or press the [ ] key to
cancel and return to the previous screen.

Legend Red Red Green

At least user 1 level access required to follow the step. Option only visible to user 1 or above. Option only visible to user 3 or above.

Use or arrow keys to position the cursor.
Use or arrow keys to increment or decrement the digits to set the desired “date and time.”

Figure 59: Setting the date and time 52

3.6 Inputs/outputs
Configure the analog and digital inputs/outputs via primary page 5: IO. See the following sections for details:
· Setting up an analog output 1 on page 53
· Setting up a frequency/totalizer output on page 55
· Setting up an alarm output on page 60
· Setting up an analog input (optional) on page 63
· Setting up an RTD input (optional) on page 65
3.6.1 Setting up an analog output
To configure an analog output, refer to Figure 60 on page 54 and complete the steps on the next page.
NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.
1. Refer to Primary pages on page 26 and navigate to page 5: IO.
2. Use the [] and [] keys to highlight analog outputs and
press the [ ] key to confirm your choice.
3. Use the [] and [] keys to highlight analog output. Then,
press the [ ] key to confirm your selection or press the [ ] key to cancel and return to the previous screen.
4. Use the [] and [] keys to highlight one of the options,
then, press the [ ] key to confirm your selection.
Configure each of the following options:
a. Loop status – select from list and press the [ ] twice key to confirm
b. Channel – select from list and press the [ ] key twice to confirm
c. Publisher – select from list and press the [ ] key twice to confirm
d. Unit – select from list and press the [ ] key twice to confirm (available choices depend on unit type and publisher settings)
e. Base – enter value and press the [ ] key to confirm f. Span – enter value and press the [ ] key to confirm g. Error level – select from list and press the [ ] key
twice to confirm (see Table 6 below)
h. Mode – select from list and press the [ ] key twice to confirm (passive = external power, active = internal LCT8 power)

Table 6: Analog output error level options

Option

Output response

Hold value

Holds the last “good” reading

Force HI (20 mA) Forces the output to 20 mA on error

Force LO (4 mA) Forces the output to 4 mA on error

Force HH

Forces the output to 21 mA on error

Force LL

Forces the output to 3.8 mA on error

Force value

Forces the output to a user-defined value (between 4 and 20 mA) on error

53

Legend Green

At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

Use or arrow to
highlight the preferred
option and press twice
to confirm selection.

Figure 60: Setting Up an analog output 54

Displayed units depend on the “unit type” and “publisher” selections
Follow similar steps to also set the “span”
“Force value option has additional screens that allows setting the preferred mA value
“Passive” requires an external power supply, while “active” is internally powered by the electronics.

3.6.2 Setting up a frequency/totalizer output
To configure a frequency/totalizer output, refer to Figure 61 below and complete the steps on the next page. NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Legend Green

At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

If you select linked, both outputs will be set up the same, just 90° out of phase. If you select independent, you will set up each output separately.

Figure 61: Setting Up a frequency/totalizer output 55

1. Refer to Primary pages on page 26 and navigate to page 5: IO.
2. Use the [] and [] keys to highlight frequency/totals
and press the [ ] key to confirm your choice.
3. Use the [] and [] keys to highlight either linked (90°)
or independent. Then, press the [ ] key twice to confirm your selection or press the [ ] key to cancel and return
to the previous screen.
NOTE: If you select linked, both outputs will be set up the same, except they will be 90° out of phase. If you select independent, each output is set up separately.
4. Based on your selection in the previous step, complete one of the following steps:
a. If you selected linked (90°), freq/total #1 is highlighted
on the next screen. Press the [ ] key to confirm the selection or press the [ ] key to cancel and return to
the previous screen.
b. If you selected independent, use the [] and [] keys to highlight the desired output on the next screen.
Then, press the [ ] key to confirm your selection or press the [ ] key to cancel and return to the previous
screen.
The meter can support both a frequency output or a totalizer output, even at the same time on independent outputs. While both function in similar manners, one may be more appropriate over the other depending on the application. The frequency output can be programmed for virtually any meter parameter, with the most common selected as volumetric flow rate. The totalizer output can only be set to discrete units of volume or time.
The maximum frequency the meter can deliver is 10kHz through a continuous pulse train that is linearly proportional to the minimum and maximum frequency output settings (base and span) scaled to the minimum and maximum output parameter values. See section 3.6.2.2 for programming steps.

The totalizer output can deliver a pulse per unit volume (or time) at a minimum pulse width of 1ms. This minimum works out to a maximum pulse train frequency of 500Hz. Care must be exercised when setting the units/pulse and the pulse width values so the pulse outputs is not overwhelmed. The totalizer output will only generate pulses when the totalize gate digital input sees an open circuit. The totalizer will not generate pulses when this input is shorted.
5. Use the [] and [] keys to highlight and configure each of the following options:
a. If you selected freq/tot status, use the [] and [] keys to highlight the desired option (off or on). Then,
press the [ ] key twice to confirm your selection or press the [ ] key to cancel and return to the previous
screen.
b. If you selected mode, use the [] and [] keys to highlight the desired option (frequency or totalizer).
Then, press the [ ] key twice to confirm your selection or press the [ ] key to cancel and return to the
previous screen.
c. If you selected drive ctl, use the [] and [] keys to highlight the desired option (Open drain or push-pull).
Then, press the [ ] key twice to confirm your selection or press the [ ] key to cancel and return to the
previous screen.
6. When you have finished, press the [ ] key until you return to measurement view.

56

3.6.2.1 Frequency output termination
When driving the Sentinel LCT8 frequency/totalizer output over distances greater than 100 feet, a 24 AWG twistedpair I/O cable is typically used. With a data acquisition system that requires a high enough voltage to read the signal (typically a 3 – 4V threshold), the connection shown in Figure 62 below should be used. This open-drain configuration provides a clean, ideal signal with a high enough voltage to trigger the DAC to properly count the pulses.

External power supply (5 to 24 VDC)

F/T1-

Pull-up resistor

Sentinel LCT8

Twisted-pair cable >100 ft F/T1+

Counter

Figure 62: Open-drain frequency output wiring

Carefully select the pull-up resistor to be sure it has a high enough resistance and wattage rating for the size of the power supply. Use Table 7 below as a guide to select the appropriate value.

Table 7: Selecting the Pull-Up resistor

Power supply voltage (VDC)

Resistor value (ohms)

Minimum power rating (W)

5

1200

1/40

5

2400

1/90

9

1200

1/10

9

2400

1/25

12

5100

1/30

12

10,000

1/70

24

5100

1/8

24

10,000

1/15

24

20,000

1/30

Amplitude

Figure 63 below shows a typical output waveform at the end of a terminated I/O cable when driven by the Sentinel LCT8 in push-pull configuration. This waveform is an example of what a “good” pulse output should look like.
1000′, 24 AWG, termination 120 ohm, push-pull mode 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2
0 -0.2 -0.4
Figure 63: Ideal frequency output signal shape

57

3.6.2.2 Programming a frequency output
To program a frequency output, refer to Figure 64 below and complete the following steps: NOTE: If necessary, refer to Table 4 on page 23 as a reminder about color code meanings.

Legend Green

At least user 3 level access required to follow the step.

Dotted Not all transitional screens are shown (at least user 3 level green access required).

Green Option only visible to user 3 or above.

If you select linked, both outputs will be set up the same, just 90° out of phase. If you select independent, you will set up each output separately.

Figure 64: Programming a frequency or totalizer output 58

1. Navigate to the mode option on the freq/tot status screen (see Setting up a frequency/totalizer output
on page 55). Then, press the [ ] key to confirm
this choice.
2. Use the [] and [] keys to highlight the frequency
option. Then, press the [ ] key twice to confirm your selection or press the [ ] key to cancel and return to the
previous screen.
3. Use the [] and [] keys to select and program each of the six frequency output options. Refer to Table 8 below for guidance in choosing the appropriate setting for your application. Also, see Table 9 below for descriptions of the available options for the error level setting.
4. After programming all of the frequency output options,
press the [ ] key to accept your new settings or press the [ ] key to keep the previous settings and return to
the previous screen.

Table 8: Frequency output options

Option

Description

Units

Choose the channel, parameter and units to output.

Fbase

Enter the lowest value of the frequency range you want to output. Typically 0Hz.

Fspan

Enter the highest value of the frequency range you want to output. max possible 10000Hz.

Value (min)

Enter the value of the parameter you want to correspond to the min. value of the frequency range.

Value (max)

Enter the v

References

• Panametrics | Flow Measurement Devices | Baker Hughes
• Baker Hughes
• Baker Hughes
• Baker Hughes

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