RC SYSTEMS SenSmart 4000 Smart Sensor Head Stainless Steel User Manual

SenSmart 4000
Operations Manual
8621 Hwy 6
Hitchcock, TX 77563
409-986-9800
www.rcsystemsco.com

Chapter 1 Safety Information

1.1 Safety Information – Read Before Installation and Applying Power
The following symbols are used in this manual to alert the user of important instrument operating issues:
This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions.
This symbol is intended to alert the user to the presence of dangerous voltage within the instrument enclosure that may be sufficient magnitude to constitute a risk of electric shock.

WARNINGS:

• WARNING- EXPLOSION HAZARD – DO NOT REPLACE FUSE UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
• WARNING- EXPLOSION HAZARD – DO NOT DISCONNECT EQUIPMENT UNLESS POWER HAS BEEN SWITCHED OFF OR THE AREA IS KNOWN TO BE NON-HAZARDOUS.
• Use a properly rated CERTIFIED AC power (mains) cable installed as per local or national codes
• A certified AC power (mains) disconnect or circuit breaker should be mounted near the controller and installed following applicable local and national codes. If a switch is used instead of a circuit breaker, a properly rate CERTIFIED  fuse or current limiter is required to be installed as per local or national codes. Markings for positions of the switch or breaker should state (I) for on and (O) for off.
• Clean only with a damp cloth without solvents.
• Equipment not used as prescribed within this manual may impair overall safety.

1.2 Contacting RC Systems Inc.
To contact RC Systems Inc., call, fax, email or write:
409–986-9800 FAX 409-986-9880 Email: info@rcsystemsco.com
8621 Hwy. 6 Hitchcock, TX 77563
Or visit us on the Web at www.rcsystemsco.com

Chapter 2 General Description

The Universal Transmitter Series consists of a common processor board connected to various combinations of input output options. The models are based on wireless vs wired communications; and powering as follows:

SenSmart 4000 – Low-power, 4-20mA loop powered gas detector for toxic and oxygen detection. Includes a 4-20mA output.
SenSmart 5000 – 10-30VDC powered gas detector for toxic, oxygen, combustible, VOC and CO2 detection. This model adds a color backlit LCD display, and has Modbus and/or 4-20mA communications and relays available.
SenSmart 8000 – Battery powered wireless gas detector for toxic, oxygen, combustible and CO2 detection. Available in either 900MHz or 2.4GHz models.
SenSmart 8000X – 10-30VDC powered wireless gas detector for toxic, oxygen, combustible and CO2 detection. This model adds a color backlit LCD display.
All models use RC Systems latest Smart Sensor technology, providing smarter gas detection with simplified solutions.

Chapter 3 Installation Instructions

3.1 Mounting the Enclosure
Install the detector to a wall or bracket using the predrilled mounting flanges with I.D. 0.25 on 5 inch centers (Figure 1). If conduit is rigid and able to support the weight of the universal detector, the mounting bolts may be omitted.
After you have determined the appropriate location for your gas detector, it is important to securely mount the gas detector using the predrilled mounting flanges on the enclosure. Dimensions for the mounting holes can be found for both the aluminum and poly enclosures in Figure 3-1. 

3.2 Power and Analog Outputs Wiring
WARNING: Qualified personnel should perform the installation according to applicable electrical codes, regulations and safety standards. Ensure correct cabling and sealing fitting practices are implemented. Do not aim the sensor pointing upward.

Modular design simplifies the installation of the universal gas detectors. A top display assembly is mounted with captive thumbscrews, and is easily removed to access field-wiring terminals. Power, input and output wires mount to the  power supply board.
The SenSmart 4000 is powered through a non-polar 4-20mA loop connected to TB2. Connect the +1030VDC/4-20mA loop wires to TB2.1 and TB2.2 on the 2-wire 4-20mA Output Board (Figure 2).

3.3 Sensor Installation and Replacement
The Universal Gas Detector series of monitors utilize RC Systems’ Gen II Smart Sensors. These sensors come factory installed, and provide our highest level of performance with increased accuracy and signal to noise ratio. The 8- conductor Smart Sensor interface connector attaches to the J1 connector on the base board, and the detector detects the type of sensor automatically. This makes it easier than ever to switch from any of our electrochemical Smart Sensors  to any of our bridge (infrared, catalytic bead and PID) Smart Sensors without having to reconfigure wiring.

3.4 Smart Sensors
WARNING: Prior to performing sensor replacement ensure the area has been declassified.
To install a new sensor, simply remove the sensor head cap, remove the old sensor assembly and align the alignment arrows on the new sensor assembly with the sensor head body and press the sensor assembly toward the sensor head body until it has fully seated in the connector. The sensor board should be flush with the edge of the sensor head body when fully seated. Reinstall the sensor head cap, and follow the on-screen prompts to upload the sensor settings into  the gas detector.
Important: Sensor assembly must be fully inserted into the sensor head body when tightening the sensor head cap. Failure to do so could result in damage to the sensor and/or the sensor head body.

Chapter 4 General Operating Instructions

4.1 Introduction
Swiping a magnetic wand past the Edit key, from any of the Data Display screens, displays the Main Menu. The Up and Down keys maneuver the selection bar up and down, and Edit selects the highlighted item to enter the sub-menus. All  items with a sub-menu are indicated by a right facing arrow at the end of the line. To edit menu item values swipe the Edit key, and use the Up and Down keys to edit the value. Once the desired value is entered, swipe the Edit key again to save the value. Swipe the Next key to reverse out of a sub-menu.
Important: Some values require a Technician Sequence to be entered to change their values. This is to prevent the operator from inadvertently changing the values. When prompted to “Enter technician sequence:” simply swipe the Up key four times to unlock the value for editing.

4.2 General Setup
After ensuring proper installation perform the following steps:

1. Apply power to the gas detector

2. Verify the detector has begun startup.
   Note: Once the detector is on the data screen, you may notice high or low values out of the full-scale range. These values should quickly return to the zero gas value if no gas is present. No false alarms should be indicated at this time  as the zero gas value will be transmitted by the detector during the user-defined warmup delay period (up to 5 minutes).

3. Using the magnetic interface, navigate the menus to ensure:
   a) Alarm levels for Alarm 1, 2 and 3 are set to the desired value
   b) Time and date are set correctly
   c) Engineering units are set to the desired value
   d) Calibration span gas value is set to the value of the calibration gas that will be used to perform initial calibration
   e) Calibration marker is set to the desired value (this is the value the output will be held at during calibration and the calibration purge delay)

4. After sensor has stabilized, perform routine sensor calibration in accordance with Chapter 5.

4.3 Normal Operation
During normal operation the sensor data is displayed on one of three data display screens as shown below. To cycle through the data display screens, use a magnet and swipe the Next key until the desired screen is reached.

4.4 Fault Condition
The Fault alarm is used to indicate a condition when there is a failure from the sensor or an out of range state has been reached. It is recommended to set the fault alarm level to -10% of the span value. For example if an H2S sensor is  installed with a span value of 100, the fault should be set at -10, or if an oxygen sensor is installed with a span value of 25, the fault setting should be -2.5.
When a fault condition is reached, the fault condition will be indicated by the fault LED and “Fault” flashing on the display.

4.5 Alarm Conditions
Alarm levels are user configured.
When an alarm level is reached, the alarm condition will be indicated by the alarm LED and the alarm level flashing on the display. If Latching is turned on, the alarm will stay enabled until the user acknowledges the alarm, even if the alarm condition has cleared.

Chapter 5 Calibration Procedure

5.1 Preparation
Calibration is the most important function for ensuring correct operation of the Universal Series of gas detectors. The CAL MODE is designed to make calibration quick, easy and error free, and a successful Zero and Span calibration  requires only four keystrokes. The 4-20mA output transmits 3mA during the calibration, and 4mA during calibration purge to prevent alarms. After 5 minutes of inactivity the gas detector will exit calibration mode automatically.
➢ RC Systems recommends performing calibrations
✓ Immediately prior to placing a gas detector in service
✓ Any time a new sensor is installed
✓ Every six months for routine calibrations (more often if sensor is known to have been exposed to gas for extended periods of time)
✓ Periodic bump tests are recommended if detector has potentially been exposed to incompatible gases to ensure correct operation
➢ Follow these calibration guidelines to ensure proper operation of your RC Systems, Inc. gas detector:
✓ Calibration accuracy is only as good as the calibration gas accuracy. RC Systems recommends calibration gases with National Institute of Standards and Technology (NIST) traceable accuracy to increase the validity of the calibration.
✓ Do not use gas cylinders beyond their expiration date.
✓ Calibrate a new sensor before it is put in use.
✓ Allow the sensor to stabilize before starting calibration.
✓ Calibrate on a regular schedule. RC Systems recommends once every six months, depending on use and sensor exposure to poisons and contaminants.
✓ Calibrate only in a clean atmosphere, free of background gas.

Prior to beginning your calibration make sure you have the following items:

1. A cylinder of calibration gas with concentration equal to the SPAN GAS VALUE setting (RC Systems typically recommends choosing a value at 50% of full scale.)
2. A cylinder of Zero Air (unless you are confident there is no target gas potentially present in the area)
3. A flow regulator, a fixed flow of 0.5LPM is recommended for most applications, but some instances may require a 1.0LPM fixed flow regulator.
4. A Calibration Cup or Calibration Adaptor
5. Sufficient length of flexible tubing to connect the regulator to the calibration adaptor

5.2 Routine Calibration Procedure
Use the following step-by-step procedure to perform Zero and Span calibrations (Figure 1-2 may be used for reference to the Menus.):
Note: The first three steps must be performed before the timer in the bottom right corner expires, 15 seconds, otherwise the SenSmart 4100 will exit back to the Data Display Screen.!

1. Enter Calibration mode from any of the Data Display Screens by swiping the Down/Cal key.
2. Swipe the Edit key to enter Cal Mode.
3. Apply a clean Zero Gas (Figure 6), using the Calibration Cup or be sure there is no background target gas in the monitored area. After the reading is stable, swipe the Edit key to set the Zero Calibration. To skip the Zero calibration,  and go to the Span calibration, swipe the Next key. Once a message that the Zero calibration was completed successfully has been displayed, proceed to the next step.
4. Apply the correct, as indicated, span gas (Figure 6). After the reading is stable, swipe the Edit key to set the Span Calibration. To skip the Span Calibration swipe the Next key. When a message that the Span Calibration was  completed successfully is displayed, the gas detector will exit back to the Data Display Screen.
5. Remove the calibration gas. Once the Cal Purge Delay has expired, normal alarm and relay functionality will be restored.

Calibration history records are logged, and may be viewed in the Sensor Information.

5.3 Bump Test Procedure
Note: A bump test, when performed correctly, is meant to check both sensor and alarm functionality. This results in expected alarms, and proper precautions should be taken.
!Also known as a functionality test, a bump test is not meant to test the accuracy of the detector, and no calibration settings are changed during the test.
To perform a bump test, briefly expose the sensor to a gas of known concentration (above the Low Alarm set point), and check to ensure the display reading increases to a value within tolerance of the concentration applied and check for  alarm actuation. If the sensor does not perform as expected, RC Systems recommends performing a routine calibration and/or replacing the sensor. If the alarm does not perform as expected check the detector’s alarm settings.

Chapter 6 Maintenance Procedure

6.1 Regular Maintenance
RC Systems recommends performing calibrations at regular intervals to ensure proper functionality of the Universal Gas Detector. During routine calibration, RC Systems recommends a visual inspection of sensor head, enclosure and  conduit entries to check for cleanliness and physical integrity. Cleaning the detector is recommended when necessary, but be aware that some cleaning compounds may be detected by an operational detector depending on the sensor type. So, proper precautions should be taken.
RC Systems recommends calibrations:
✓ Immediately prior to placing a gas detector in service
✓ Any time a new sensor is installed
✓ Every three months for routine calibrations (more often if sensor is known to have been exposed to gas for extended periods of time)
✓ Periodic bump tests are recommended if detector has potentially been exposed to incompatible gases to ensure correct operation
6.2 Sensor Replacement
When a sensor has reached its end of life, it is necessary to replace the sensor. For sensor replacement instructions, refer to Chapter 3.5.

Appendix 1 Gas Detector Specifications

Appendix 2 Sensor Specifications

Target gas| Formula| Relateive Gas
Density| TWA| IDLH| Min Span| Max Span
---|---|---|---|---|---|---
Acetaldehyde| C2H4O| | 200ppm| 2000ppm (Ca)| 30ppm| 1500ppm
Acetylene| C2H2| 1.5| —| asphyxiant| —| 0-100% LEL
Ammonia| NH3| 0.91| 50ppm| 300ppm| 25ppm| 1000ppm
Ammonia| NH3| 0.6| 50ppm| 300ppm| 1250ppm| 5000ppm
Arsine| AsH3| 0.6| 0.5ppm| 3ppm| —| 0.5ppm
Arsine| AsH3| 2.69| 0.5ppm| 3ppm| —| 1ppm
Benzene| C6H6| 2.69| 1ppm| 500ppm| 3ppm| 25ppm
Butane| C3H8| 2.6961| 1000ppm (pel)| 2100ppm| —| 0-100% LEL
Carbon Dioxide| CO2| 1.55| 5000ppm| 40000ppm| —| 0-100%vol
Carbon Dioxide| CO2| 1.53| 0.1ppm C| 5ppm| —| 5%/vol
Carbon Dioxide| CO2| 2.33| 5000ppm| 40000ppm| —| 5%/vol
Carbon Dioxide| CO2| 1.53| 5000ppm| 40000ppm| —| 1.5%/vol
Carbon Monoxide| CO| 1.53| 50ppm| 1200ppm| 40ppm| 5000ppm
Chlorine| Cl2| 0.97| 1ppm  C| 10ppm| 5ppm| 20ppm
Chlorine Dioxide| ClO2| 2.47| 0.1ppm C| 5ppm| 2ppm| 6ppm
Combustible| Hydrocarbon| 2.33| —| asphyxiant| —| 100%LEL
Ethane| C2H6| varies| —| asphyxiant| —| 0-100% LEL
Ethanol| C2H6O| 1.07| 1000ppm| 3300ppm| —| 0-100% LEL
Ethylene| C2H4| 1.6| 200ppm| asphyxiant| —| 0-100% LEL
Ethyl Alcohol| C2H6O| 0.98| 1000ppm| 3300ppm| 40ppm| 3300ppm
Ethylene Oxide| C2H4O| 1.59| <0.1ppm (Ca)| 800ppm (Ca)| 2ppm| 100ppm
Flourine| F2| 1.49| 0.1ppm| 25ppm| —| 1ppm
Hexane| C6H14| 1.31| 500ppm| 1100ppm| —| 0-100% LEL
Hydrazine| N2H4| 2.97| C 0.03ppm (Ca)| 50ppm (Ca)| —| 1ppm
Hydrogen| H2| 1.1| —| asphyxiant| 250ppm| 5000ppm
Hydrogen| H2| 0.07| —| asphyxiant| 500ppm| 10000ppm
Hydrogen| H2| 0.07| —| asphyxiant| 5000ppm| 40000ppm or 100%LEL
Hydrogen Chloride| HCl| 0.07| 5ppm C| 50ppm| 20ppm| 100ppm
Hydrogen Cyanide| HCN| 1.27| ST 4.7ppm| 50ppm| 35ppm| 100pm
Hydrogen Flouride| HF| 0.94| 3ppm| 30ppm| 10ppm| 10ppm
Hydrogen Sulfide| H2S| 0.69| 20ppm| 100ppm| 5ppm| 2000ppm
Methane| CH4| 1.19| —| asphyxiant| 5%/vol (100%LEL)| 100%/vol
Methane| CH4| 0.6| —| asphyxiant| —| 0-100% LEL
Methane| CH4| 0.6| —| asphyxiant| —| 0-100% LEL
Nitric Oxide| NO| 0.6| 25ppm (pel)| 100ppm| 10ppm| 250ppm
Nitric Oxide| NO| 1.04| 25ppm (pel)| 100ppm| 70ppm| 500ppm
Nitrogen Dioxide| NO2| 1.04| 5ppm C| 20ppm| 15ppm| 20ppm
Nitrogen Dioxide| NO2| 2.62| 5ppm C| 20ppm| 25ppm| 200ppm
Oxygen| O2| 2.62| —| 19.50%| —| 25%/vol
Ozone| O3| 1.1| 0.1ppm| 10ppm| 510ppb| 2ppm
Pentane| C5H12| 1.66| 1000ppm| 1500ppm| —| 0-100% LEL
Phosphine| PH3| 2.487| 0.3ppm| 50ppm| 5ppm| 10ppm
Propane| C3H8| 1.18| 1000ppm (pel)| 2100ppm| —| 0-100% LEL
Propane| C3H8| 1.55| 1000ppm (pel)| 2100ppm| —| 0-100% LEL
Propane| C3H8| 1.55| 1000ppm (pel)| 2100ppm| —| 0-100% LEL
Propylene| C3H6| 1.55| —| asphyxiant| —| 50ppm
Silane| SiH4| 1.45| 5ppm| asphyxiant| 45ppm| 100ppm
Sulfur Dioxide| SO2| 1.11| 5ppm| 100ppm| 10ppm| 2000ppm
Sulfur Dioxide| SO2| 2.26| 5ppm| 100ppm| 100ppm|

Appendix 3 Menu Navigation

Appendix 3 menus shown are for the Universal Series of Gas Detectors, some menus may not be visible on the SenSmart 4000
Main Menus
➢ Alarm Outputs
The Alarm Outputs Menu is accessed via the Main Menu, and is used to configure the mapping of the three  programmable relays to the alarm setpoints, and relayconfiguration items such as Acknowledge, Failsafe and Override.
➢ Input Settings
The Input Settings Menu provides access to user configurable input parameters. This includes Alarm settings for all three alarms, access to the data from menus (where you can adjust sensor settings for various types of sensors including  sensor voltage for bridge type sensors), input configuration settings including tag name, engineering units and inCal mA, calibration span value, and the Temperature compensation table.
➢ Com Settings
The Com Settings Menu provides access to the settings for the Modbus configuration, when installed.
➢ Security
Allows the user to enter a passcode to restrict access to some settings
➢ System
User adjustable items which effect the entire gas detector, and are not specific to either channel.
➢ Technician
The Technician Menu provides access to a variety of useful troubleshooting screens to view ADC reading, Discrete I/O, Current input, Sensor life and access to the diagnostics mode.

Alarm Output Menus
➢ Source
The Source setting can be set to Alarm 1, Alarm 2, Alarm 3 or Fault. This setting determines which condition must be met in order for the relay to actuate.
➢ Acknowledge
When set to Yes, Acknowledge means the UP/RESET key will set the relay to its normal state even if the alarm condition still exists. This can be useful for silencing audible devices driven from the relay.
➢ Failsafe
When set to Yes, Failsafe means the relay de-energizes during alarm and energizes with no alarm. This is useful for signaling an alarm on a loss of power. The dedicated Fault relay is always Failsafe.

Input Settings Menus

• Enabled (Alarm 3)
  Set to YES to enable Alarm 3 and NO to disable.

• Setpoint (Alarm 1, 2, 3 and Fault)
  Setpoint enters the engineering unit value where the alarm will trip. It may be negative, and trip when monitored values fall out of range in this direction.

• Latching (Alarm 1, 2, 3)
  Setting Latching to YES causes the alarm to remain active even after the condition is gone, and to reset only when the UP/RESET key is swiped from a data display.

• Trip (Alarm 1, 2, 3)
  Set Trip to HIGH to have the alarm trip when the value goes above the setpoint. Set to LOW to trip when the value falls below the setpoint.

• On Delay (sec) (Alarm 1, 2, 3)
  On Delay allows entering a maximum 10 second delay before this alarm becomes active. This is useful for preventing spurious alarms by brief spikes beyond the alarm setpoint.

• Off Delay (min) (Alarm 1, 2, 3)
  Off Delay allows entering a maximum 120 minute delay before clearing an alarm after the alarm condition is gone. This is useful for continuing an alarm function, such as operation of an exhaust fan, for a period of time after the alarm condition clears.

• Deadband % (Alarm 1, 2, 3)
  Deadband allows forcing low values to continue to read zero. This is useful when there are small amounts of background gases that cause fluctuating readouts above zero. The highest amount of Deadband allowed is 5%.

• Color (Alarm 1, 2, 3)
  Selecting Color changes the color associated with the particular alarm. Options are Red, Blue, Purple and Orange.

• Data From (certain menu items only show up depending on the input type)
  o Source determines the type of sensor installed in the detector. E.g. bridge, electrochemical, etc.
  o Remote Sensor set to Yes indicates that the sensor is installed remotely with Remote sensor option.
  o Min and Max Raw set the range of the input to the A/D converter. Normally set to 800/4000. Useful when the sensor’s output doesn’t provide a full range signal.
  o Remote ID is where the Modbus slave’s ID number is entered
  o Alias is the register number which defines the location of the variable representing the input value of the Modbus data received through the communication ports
  o Interface assigns which communication port the Modbus slave is connected to and the detector will get its data from
  o Filter (second) sets the number of seconds over which samples are averaged
  o Byte Order determines WORD and BYTE alignment of data at the remote Modbus transmitter when sending tis 4 byte IEEE floating point values
  o Polarity determines the polarity of the sensor
  o Heater Enabled determines if the sensor heater is turned on or off
  o Heat (degC) is the thermostat setting of the sensor
  o Set Voltage set’s the voltage being supplied to bridge type sensors
  o Set Balance adjusts the balance of a catalytic bead sensor, and must only be adjusted with ZERO gas on the sensor.
  o Set PGA is the adjustment that matches the input signal range to the detectors input signal conditioning circuits.
  o Marker used to detect special modes of operation from analog inputs, which some monitors use to indicate special modes of operation, such as calibration mode

• Configure
  o Measurement Name is a 16 character ASCII field typically used to describe the monitored point by user tag number or other familiar terminology.
  o E. Units or engineering units may have up to 10 ASCII characters, and is usually factory configured based on sensor type.
  o Zero defines the reading to be displayed when the output is 4mA (0%)
  o Span defines the reading to be displayed when 20mA (100%) is the output.
  o Decimal Points sets the resolution of the displayed reading, and may best to zero, one or two.
  o Deadband (%) allows forcing low values to continue to read zero. This is useful when there are small amounts of background gases that cause fluctuating readouts above zero. The highest amount of Deadband allowed is 5%. Note: Deadband affects all outputs as well as the local reading.
  o InCal mA determines the output when the channel is in Calibration mode. It may be set from 0 to 20mA. This signal may be used by the controller to determine that the unit is in calibration.

• Calibration
  o Zero Setpoint is set to the zero value.
  o Span Setpoint is set to the calibration gas value, typically 50% of full scale.

• Temp Comp allows the user to adjust the gain and offset that is applied to sensors to compensate for temperature drift. Factory supplied sensors are preprogrammed with these values which are automatically uploaded to the  SenSmart 6000 from the Smart Sensor.

Comm Settings Menus

• Function
  Determines the mode of operation for the communication port.

• Remote Sensor
  o Set Remote ID is where the Modbus slave’s ID number is entered
  o FW Version displays the version of firmware that is programmed in the detector.

• Radio Setup (Coming soon)

• Modbus Slave (when installed)
  o Baud Rate allows users to set the data rate of the communication port. The options include 9600, 19200, 38400, 57600 and 115200.
  o Parity is a bit that is added to ensure that the number of bits with the value “1” in a set of bits is even or odd. Parity bits are used as the simplest form of error detecting within code. The default is None.
  o Remote ID is where the Modbus slave’s ID number is entered
  o Byte Order determines WORD and BYTE alignment of data at the remote Modbus transmitter when sending tis 4 byte IEEE floating point values
  o LED Enable enables the RX and TX LEDs to flash green on valid transmit and receive transmissions. For ports configured as master, the RX LED will flash red if there is a Comm Error or if an exception is received. Slave ports will cause the RX LED to flash red under the same conditions, but can also cause the TX LED to flash red if an invalid function code is received or if the wrong register is given.

Appendix 4 Ordering Information

Accessories
10-0198| Sensor Head Splash Guard With Remote Cal Port|
10-0203| Sensor Head Calibration Adaptor|
10-0270| Stainless Steel Duct Mount|
10-0379| PVC Duct Mount|
1000-2498| Gas Detector Stand|
1000-2499| Transmitter Pole Mount Bracket 1.5”|
10-0322| Magnetic Mounting Kit for Aluminum Enclosure|
10-0480| Magnetic Mounting Kit for Poly Enclosure|

Appendix 5 Frequently Asked Questions

How do I perform a calibration?

• To perform a calibration, please refer to Chapter 5. RC Systems recommends performing calibrations
  ✓ Immediately prior to placing a gas detector in service
  ✓ Any time a new sensor is installed
  ✓ Every six months for routine calibrations (more often if sensor may have been exposed to gas for extended periods of time)
  ✓ Periodic bump tests are recommended if detector has potentially been exposed to incompatible gases to ensure correct operation

Is there a Quick Start Guide available?

• Yes, visit www.rcsystemsco.com/downloads for a complete list of all of our product materials available for download.

My universal gas detector is responding to gas but the controller is in fault.

• Verify the analog signal wire is connected to the correct terminal at the monitor (Chapter 3.3).

• Verify the analog signal wire is connected to the correct terminal at the controller. For RC
  Systems controllers the HI terminal on the analog input board is where the signal wire connects.

• Verify monitor’s 4-20 mA output by disconnecting the signal wire and measure across 4-20 output (+) and common (-) (Chapter 3.3).

My universal gas detector is reading NO SENSOR.

• Remove senor head cover and verify the Smart Sensor module is fully engaged in the Smart Sensor connector.
• Verify the Smart Sensor connector is fully plugged into the Smart Sensor connection on the I/O board.

I can’t loosen the XP enclosure cover.

• Make sure the set screw has been loosened.
  My universal gas detector is failing calibration.

• Make sure the calibration gas is the proper concentration and gas type.

• Be sure to follow the calibration procedure.

Appendix 6 Channel States

Priority| Channel State| Screen Color
SenSmart 5000 only| Description
---|---|---|---
1| MFG| Green| State when performing manufacturers checkout process
2| Diagnostic| White| Not visible since it is a menu item
3| Inhibit| Green| Used in PGA/Balance/Voltage screens
4| Corrupted| Red| Sensor Memory is corrupted
5| Sensor Error| Red| Sensor is found/valid, but failed to read information from the sensor
6| Type Error| Red| Sensor mismatch, and user failed to accept the sensor
7| No Sensor| Red| Sensor is not found
8| Cal Needed| Red| A calibration of the sensor is required
9| Comm Error| Red| Indicates timeout or invalid reply from Modbus or wireless device
10| I/O Error| Red| Indicates a failure to communicate between I/O board electronics
11| Config Error| Red| Indicates interface for Modbus/wireless  is configured for something else
12| Warmup| Green| Indicates the detector is in the user defined warmup time period
13| Overrange| Current Alarm Color| Indicates the sensor is reading over the maximum allowable range
14| Cal Zero| Pink| Indicates calibration mode
15| Cal Span| Pink| Indicates calibration mode
16| Cal Purge| Pink| Indicates the detector is in the user defined cal purge time period
17| Fault| Red| Indicates a fault condition exists
18| Alarm 3| User Programmed| Indicates the Alarm 3 condition exists
19| Alarm 2| User Programmed| Indicates the Alarm 2 condition exists
20| Alarm 1| Yellow| Indicates the Alarm 1 condition exists

UM-1079
Revision A

Documents / Resources

| RC SYSTEMS SenSmart 4000 Smart Sensor Head Stainless Steel [pdf] User Manual
SenSmart 4000 Smart Sensor Head Stainless Steel, SenSmart 4000, Smart Sensor Head Stainless Steel, Head Stainless Steel, Stainless Steel
---|---

References

• Custom Gas Detection and Alarm Control Systems | RC Systems
• Custom Gas Detection and Alarm Control Systems | RC Systems
• Downloads | RC Systems

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