AQUAMONIX M500 Electromagnetic Flowmeter Instruction Manual

AQUAMONIX M500 Electromagnetic Flowmeter

Product Information

The M500 Electromagnetic Flowmeter is a device used for measuring the velocity of fluids in pipes. It operates based on Faraday’s law of magnetic induction that states that the voltage induced across any conductor as it moves at right angles through a magnetic field is proportional to the velocity of that conductor.
The flow detector contains electromagnetic coils that produce a magnetic field when a pulsed DC current is applied from circuitry within the flow transmitter. The movement of the fluid through the pipe and through the magnetic field produces an electric voltage potential, which is measured by the flow transmitter at the measuring electrodes. The signal voltage between the two electrodes is proportional to the magnetic flux density, the distance between the electrodes, and the average flow velocity of the fluid.

Product Usage Instructions

Before installing or operating the M500 Electromagnetic Flowmeter, it is important to read and understand the operation, installation, and precautions contained within the manual. Follow these steps for proper usage:

1. Ensure that the device serial numbers match those listed in the calibration report provided with the flowmeter.
2. Use safe lifting practices when handling flowmeter components due to their considerable weight.
3. Install the flowmeter according to the instructions provided in the manual.
4. Ensure that the flowmeter is properly calibrated before use.
5. If necessary, obtain copies of the calibration report from Aquamonix.
6. If any issues arise during usage, refer to the troubleshooting guide provided in the manual.

OPERATION AND CONFIGURATION MANUAL
M500 ELECTROMAGNETIC FLOWMETER
PENTAIR ENVIRONMENTAL SYSTEMS

SAFETY AND USAGE PRECAUTIONS

• Read and understand all installation instructions contained in this Manual.
• If the equipment is used in a manner not speci ed by Aquamonix, the protection provided by the equipment may be impaired.
• Only suitably quali ed personnel may remove any covers on this product.
• Lethal voltages may be present on conductors, wiring and on surfaces that are exposed when a cover is removed from this product.
• Be aware that the coil driver connections and associated wiring may generate voltages capable of producing an electric shock.
• Observe the required environmental conditions and recommended operating conditions for this product.
• If this product does not operate normally then refer to the troubleshooting information contained in this Manual.
• There are no operator serviceable parts inside this product. Please refer servicing and repair to quali ed service personnel.
• Ensure that the ow transmitter enclosure is sealed and that the unit is stored in a dry environment if it is not to be put into service immediately. The M500 is provided with gland plugs which enable sealing when cable is not tted, also acting as an important safety measure. Installers must t provided gland plugs to any unsealed cable glands. A potential electrocution risk may exist if any loose object penetrates an open gland in the base.
• The ow detector may have an insulating lining that extends to the end of the tube within the ow detector or over the ange faces. Do not drag or roll the unit on its end as this may damage the liner.
• The ow detector must be installed in a position such that it remains full of liquid at all times during normal operation.

· Cabling between the ow detector and the ow transmitter should be protected from external damage and must be routed away from cables and machines that can generate signi cant electromagnetic interference such as variable frequency drives and electrically operated machines. The recommended technique is to install the cable between the ow transmitter and ow detector within a metallic conduit, bonded to earth and with suitable physical protection where the cable enters and exits the conduit.
· Prior to commencing installation, ensure that the ow detector and ow transmitter are stamped
with serial numbers that match those listed in the calibration report. Every M500 Flowmeter is provided with a calibration report and copies may be obtained from Aquamonix if required.
· Where tted, eye bolts should be used to lift the ow detector. If eye bolts are not tted, slings
and spreaders should be used. Be aware of the considerable weight of owmeter components and always use safe lifting practices to avoid personal injury.
· 2060 ow detectors have an insulating liner that extends over the ange faces. This liner does not act as a gasket and pipe gaskets must be tted during installation.

M500 Operating & Installation Manual

INTRODUCTION

Please note that this symbol is used to highlight aspects of particular importance with respect to the operation and safety of the instrument. Please ensure that you are conversant with the operation, installation and precautions contained within this manual before installation or operation of the ow meter.
Principle of Operation
The operating principal of the electromagnetic ow detector is based on Faraday’s law of
magnetic induction that states that the voltage induced across any conductor as it moves at right angles through a magnetic eld is proportional to the velocity of that conductor as depicted below:
Every Aquamonix flow detector contains windings (electromagnetic coils) that produce a magnetic
eld when a pulsed DC current is applied from circuitry within the ow transmitter. The movement of the uid (i.e. the conductor) through the pipe and through the magnetic eld produces an electric voltage potential. The voltage is present within the uid and is shown as electric
eld lines in the above gure. This resulting voltage, Es, is measured by the ow transmitter at the measuring electrodes which are directly exposed to, and in contact with the uid. The signal voltage, Es, between the two electrodes is proportional to the magnetic ux density (B), the distance between the electrodes (D) and the average ow velocity (V) of the uid.

Es = B x D x V x K
Where: Es = induced electrode voltage B = magnetic eld strength D = ow detector diameter V = liquid ow velocity K = Constant value

(Equation 1)

The ow transmitter is capable of producing an accurate and stable current source so that the magnetic ux density (B) is constant. The electrode spacing (D) is equal to the ow detector diameter and is constant due to the construction of the ow detector. Hence the induced electrode voltage, Es is proportional to the ow velocity, V of the uid.

Equation 1 can also be expressed to show that the signal voltage Es is proportional to the volumetric ow rate, Qv:

Qv = x D2 x V4

(Equation 2)

Es = B x D x K x (Qv / (¶ x D2))0.25

(Equation 3)

The application of Faraday’s law for any magnetic owmeter has a number of implications:

· The resulting voltage Es is not dependent on the conductivity, but the material owing through the pipe must have a certain level of conductivity for the principle to work. For water ow applications there is a minimum level of electrical conductivity (EC) below which the accuracy of the measurement will suffer. Aquamonix flow transmitters check water conductivity and can produce an alarm if the conductivity is too low.

· The material in the pipe must cover the electrodes and in most practical applications the pipe must be full at all times for accuracy of measurement. Aquamonix flowmeters include a pipe not full detector, which is an additional connection from the ow detector to the ow transmitter.

· The Aquamonix M500 Flowmeter includes electronic and digital signal processing functions to provide excellent noise reduction and signal to noise improvement.

M500 Operating & Installation Manual

6
INTRODUCTION

Model Numbering and Optional Accessories

M500 Speci cation Code

M500-

Options

M

Power

L

Options

X

Serial

M

Analogue

X

Outputs

A

Digital IO

X

D

Details
Flow transmitter
240VAC 12-24VD C
USB communications only (standard). Modem port (low power RS232/RS485/RS422) with MODBUS.
No analog outputs (standard). 2 x 4-20mA selectable sourcing or sinking & isolation.
2 x multifunction outputs (standard). 1 x input, 4 x multifunction outputs.

Options Speci cation Code 625054 625056 625057

Details Dual Analog Output Option Card Modem Interface Card (RS232/RS485/RS422) with Modbus Digital Expansion Card

Accessories Speci cation Code MAGMATE-USB AQUAGATE

Details MagMate Software on USB Memory Stick Remote Telemetry System

M500 Operating & Installation Manual

7
INTRODUCTION

Features
· Flow velocity, volume and mass ow measurement with computation and display of forward, reverse and net ow.
· Programmable peak and off-peak ow totalisation.
· Programmable year to date (YTD) ow totalisation.
· USB communications interface for ease of connection in the eld to portable computers with Aquamonix MagMate software.
· Logged data download via on-board USB port.
· Automatic self-zero and common mode signal checking.
· Internal digital ltering of input signals with programmable 50/60 Hz lter response.
· On board data logging with log data storage to micro-SD card.
· Automatic calibration and advanced self diagnostic functions.
· Removable storage media (micro SD card) for portability of setup con guration, logged data and diagnostics.
· Low power operation (I series) with programmable on and off times for power management.
· Programmable high accuracy current source with fast settling time.

· Programmable alarms and status indication.
· Capacitive touch sensitive buttons for long life mechanical-free operation of keypad.
· Graphic LCD display with LED backlighting for ease of use and simultaneous display of multiple ow variables.
· Password protection for setup parameters for changes made via communications interface and from front panel interface.
· Up to four multi-function isolated digital outputs with selectable operation: alarm/status, pulse output or frequency output.
· Up to two analogue outputs with programmable selection of output variable and selectable loop or local powered operation.
· Isolated multi-function digital input provides additional control capabilities.
· Simulation mode for quick diagnosis and training
· Integral self test.
· MODBUS communications interface with selection of communications parameters including RTU or ASCII mode, 2 wire or 4 wire interface.
· Modem compatible serial interface for remote sites.
· Wake command function allows polling by third-party systems via Modbus interface.
· Worldwide EMC Compliance.

*Note
An option card may be required to provide feature.

M500 Operating & Installation Manual

8
INTRODUCTION

Electrical Characteristics
Flow Transmitter
Digital Outputs: Type Switching Capacity Rated Contact Voltage Rated Contact Current
Digital Input: Operating voltage range
Analog Outputs: Maximum loop resistance Nominal circuit voltage Over range indication
Signal Measurement: Resolution Linearity Sampling Rate Isolation Input Range
Fusing
Coil Drive Circuit: Resolution Current Output Range Voltage Range Switching Frequency Range Settling Time (typical)1 Coil resistance range

Opto-isolated open collector NPN 3 Watts DC 30 Volts DC 100 milliamps DC
0 to 30 Volts DC
500 24 Volts DC 22 milliamps DC
23 bits ±0.001 % 2000 samples per second Approximately 30 Volts DC. ±13 millivolts DC Internal Fuse Type: T2A. Ensure power is disconnected before disconnecting or reconnecting the fuse.
16 bits 100 to 200 milliamps DC 0 to ±36 Volts DC 0.0033 to 16 pulses per second. Less than 5 milliseconds 25 to 120

Notes:
1. Actual value depends on process conditions.
2. Dependent on daylight conditions, coil current and measurement duty cycle.

Notice relating to Coil Current: Maximum reliable coil current for the 500 series transmitter is 200mA

Flow Detector
Coil Resistance EM Series IR Series

Typical value in ohms: 35-65 65-120

M500 Operating & Installation Manual

9
INTRODUCTION
Flow Measurement Characteristics

Flow velocity range: Turndown ratio: Linearity: Repeatability: Accuracy: Temperature stability: Noise ltering:
Full scale ow rate: Low ow cut-off: Measurement on-time: Measurement off-time: Low ow off-time: Flow channels:
Totalised channels:
Flow and Totaliser Volume units:
Flow time units:
Flow simulation mode 1:
Flow simulation mode 2:

0.01 to 10.00 metres per second
1000:1
<0.005%
<0.05%
Better than ±0.5% of ow or ±1mm per second whichever is greater.
<0.05% over temperature range
Analog bandpass rejection lter Digital slope compensation lter Digital noise reduction lter (50/60 Hz).
Programmable
Programmable from 0 to 10% of full scale ow rate. Totalisers are not updated when ow is below the low cut-off value
Programmable from 3 to 3600 seconds
Programmable from 0 to 3600 seconds
Programmable from 0 to 30000 seconds
Flow velocity Volumetric ow rate Mass ow
Total volumetric ow Total volumetric ow in forward ow direction Total volumetric ow in reverse ow direction Total volumetric ow during peak hours Total volumetric ow in forward direction during peak hours Total volumetric ow in forward direction during off-peak hours Year to date total volume Year to date total volume in forward direction Year to date total volume in reverse direction
Programmable selection: · Litres, kilolitres, or mega litres, · Cubic feet, Acre feet. · Imperial Gallons, Imperial mega-gallons, · US Gallons, US mega- gallons, · User programmable unit conversion factor.
Programmable selection: · Seconds, Minutes, Hours, Days, · User programmable unit conversion factor.
When enabled the user can enter a value for the ow rate, all outputs and rate calculations are set according to the simulation value. The coil driver outputs continue to operate. The totalisers do not update.
Performs same function as mode 1 but with the coil drive output current xed at a constant DC value.

M500 Operating & Installation Manual

10
INTRODUCTION
Display and Keypad Characteristics

Graphic LCD Type: Backlight operation: Keypad: Data update rate: Display characters: Password access: Con guration menu: Meter Identi cation

128 x 64 pixel monochrome graphic type with LED backlighting.
Can be enabled or disabled, includes auto-off mode when enabled and after 30 seconds of keypad inactivity.
Four button capacitive touch with adjacent key suppression, self calibrating, with wake function and press or hold discrimination.
Approximately 1 Hertz.
Customised character sets (three styles) plus Icons, international character and language capability.
Single level access to detailed data displays and con guration settings. No password required to view ow rates and totals.
Two-level hierarchy: menu and submenu with numerical index to each menu item for ease of cross referencing.
Programmable meter code

Digital IO Functional Characteristics

Digital Output Mode:
Alarm Output Mode:
Frequency Output Mode: · Resolution · Range · Duty Cycle
Pulse Output Mode: · Volume per pulse · Maximum Rate · Pulse Width
Digital IO Scan Rate

Digital outputs can be individually programmed for : · Alarm output (activated by an alarm condition ­ see below) · Frequency output (proportional to ow rate channel value) · Pulse output (one pulse generated for a speci ed volume)
Programmable alarm cause: · Low battery voltage · Pipe not full · System fault · Low ow · High ow · Forward ow detected · Reverse ow detected · Analog output 1 over-range · Analog output 2 over-range
1 Hertz 4 to 1000 Hz 50 %
Programmable: 1 to 1000 ow units. 20 Hertz Programmable 20 to 200 ms
Approximately 1 Hertz

M500 Operating & Installation Manual

11
INTRODUCTION
Analog Output Functional Characteristics

Analog output mode:
Output scaling: Output update rate:

Analog outputs can be individually con gured for : · Forward or reverse acting · Sinking or current sourcing
0 to 100% of programmed full-scale ow rate
Approximately 1 Hertz

Ancillary Hardware Functional Characteristics

Power On Self Test
Internal temperature monitor. Internal clock/calendar Non-volatile memory
Electronic Serial Number Onboard Solar Regulator

The following tests are performed during power on: · ADC ­ Analog to Digital Converter test · ESN ­ Electronic Serial Number test · CRC ­ CRC Data validation of Con guration data · DAT ­ SD Card format and le system veri cation · RTC ­ Real Time Clock test · PSU ­ Power supply voltages test · CIV ­ Coil Current and Voltage test
An internal temperature monitor is used to record the temperature within the ow transmitter and the temperature is logged to the SD card.
High accuracy real time clock circuit with long life battery backup · 1 second resolution · Integral calendar functions · Alarm function, used to schedule internal data logger.
Semiconductor non-volatile memory circuits for storage of: · Factory calibration data · Meter calibration and con guration data · Totaliser values · Diagnostic information. · CRC16 checksum validation for all non-volatile data
A unique electronic serial number is stored in silicon for each ow transmitter.
Battery voltage, battery current and solar voltage are routinely monitored. Battery charging is enabled by connection of the solar panel through a series diode to the battery when solar voltage exceeds battery voltage by 4.0 volts. The solar panel is disconnected when battery voltage exceeds 14.8 volts to prevent overcharging.

M500 Operating & Installation Manual

12
INTRODUCTION
Diagnostic Functions Characteristics

Scan Interval Diagnostic Checking
Additional System checks

Programmable: to a multiple (1 to 20) of the data logging interval
Diagnostic checks are routinely performed to ensure correct operation of the ow meter. These checks may be used to generate alarms and may also prevent the totals from being updated with erroneous values.
· Coil voltage check · Coil current check · Electrode check · Pipe Not Full detection · Signal voltage check
· Con guration and calibration data integrity · A/D Converter operation and self calibration · Real Time Clock operation

On-board Data Logger Functional Characteristics

Logging interval: Log data storage:
File system:

Programmable from 1 minute to 12 hours
Removable micro-SD card, formatted for FAT (FAT16) allowing les to be read and copied when the card is inserted into a
personal computer.
PC Compatible directory structure with individual les for: · Flow data records (CSV) · Diagnostic results records (CSV) · System event records (CSV) · Alarms records (CSV) · Con guration data (binary format)

*Comma Separated Volume le, suitable for import into spreadsheet applications.

Communications Functional Characteristics

USB Protocol Serial Port Command Protocol Serial Port File Transfer Protocol Serial Port Baud Rate: Serial Port Line Settings: Supported MODBUS function codes:

Proprietary packet-based command and le transfer protocol. Selectable: MODBUS RTU or MODBUS ASCII Proprietary packet-based command and le transfer protocol. Selectable: 9600, 19200 or 38400 No parity, 8 data bits, 1 stop bit (N,8,1). 03 ­ Read Holding Registers 06 ­ Write Single Register 16 ­ Write Multiple Registers

M500 Operating & Installation Manual

13
INTRODUCTION

Physical and Environmental Characteristics

M500 Flow Transmitter Enclosure Construction: Cable Entries Weight: Overall Dimensions: Ambient temperature:

Pressure Die Cast Aluminium 1xM25 Gland, 1xM20 Gland, 3xM16 Gland.
273H x 115D x 182W -10 to 55° C

Flow Detector Housing Construction:
Ambient temperature: Protection Class Electrodes Lining:
Submergibility:

IR2060 – Mild steel with 2 part epoxy coating IRIR2030 – 304 stainless steel IR2020 – ABS -10 to 55° C IP68 to 5 metres (IR2020 IP68 to 1.5 metres) 316 Stainless Steel (Standard) IR2060 – insulation rubber (Standard) IR2030 – insulation rubber IR2020 – ABS IR2060 ­ 10 metres IR2020 ­ 1.5 metres

Connecting Cables Signal Cable Pipe not Full cable Coil Driver Cable Power Cable

4×16/0.2 BRAIDED SCREEN 4×16/0.2 BRAIDED SCREEN 1.5mm TWIN & EARTH ORANGE CIRCULAR 1.0mm Rubberised

M500 Operating & Installation Manual

14
INTRODUCTION
M500 Flow Transmitter Casing Dimensions

Quality Assurance & Traceability
Quality System Assurance:
This product is manufactured under a quality system certi ed as complying with ISO 9001:2008.
Statement of Traceability:
Master Calibration equipment is certi ed in accordance with Regulation 13 of the National Measurement Regulations 1999, Certi cate No 34384854801260.
NATA Certi cation
The Aquamonix flow meter manufacturing facility has NATA certi cation to an accuracy of +/-0.18% for calibration and testing of ow meters in the size range 50mm to 200mm diameter. NATA certi cation provides independent con rmation of the accuracy of the manufacturing plant and test
ow facilities and is a further step closer to full Pattern Approval for the Australian made Aquamonix Magnetic Flow Meters.

Note: Drawings not to scale.

M500 Operating & Installation Manual

15
INTRODUCTION
2060 Flow Detector Dimensions
M500 Operating & Installation Manual

16
INTRODUCTION
2020 Flow Detector Dimensions
M500 Operating & Installation Manual

17
GENERAL DESCRIPTION

A 500 Series Electromagnetic owmeter consists of an electronic ow transmitter, an electromagnetic ow detector, and interconnecting cables.
Mains-powered owmeters are pre-wired with AC power cable with internal AC-DC conversion. The electronic circuit board and optional equipment cards are mounted inside a powder coated die-cast aluminium casing.

The ow transmitter mounts on a 50mm diameter pole normally placed within 10 metres of the ow detector. Longer distances are possible but must be speci ed at time of ordering. The limitation is a maximum cable length of 100 metres.

2020 Flow Detector

2060 Flow Detector

Nameplate
A polyester label is xed to the outside case of each meter. This contains information such as type number, size and calibration information.

In the case of the 2020, a duplicate label is inserted inside the junction box. This will allow the details of the unit to be traced and/or retrieved in the event that the label is rendered illegible after prolonged burial.
2060 ow detectors have identifying numbers stamped on one ange that allows full factory information to be retrieved. Simply call the factory or your nearest Aquamonix representative and provide them with this number.
Explanation of label information
Type: Abbreviated model number for the ow detector. May be either IR2020, EM2020, IR2060 or EM2060.
No.: Unique serial number for the ow detector.
Size: Nominal pipeline size for the owmeter.
Tubefac: A calibration factor established by ow testing the owmeter system in the ow laboratory at the factory in Australia. This factor is entered into con guration parameter of the 500 series ow transmitter connected to the ow detector for the system to be accurate. For your convenience, on a new installation, this parameter has normally been entered into the ow transmitter prior to the system leaving the factory. It is recommended that the calibration report form for the ow detector and ow transmitter be checked to ascertain the mating serial numbers prior to installation.
Zero: A calibration factor established by ow testing the owmeter system at the factory in Australia. This factor is entered into con guration parameter of the 500 series ow transmitter connected to the ow detector for the system to be accurate. For your convenience, on a new installation, this parameter has normally been entered into the ow transmitter prior to the system leaving the factory. It is recommended that the calibration report form (see sample below) for the ow detector and ow transmitter be checked to ascertain the mating serial numbers prior to installation.

M500 Operating & Installation Manual

18
GENERAL DESCRIPTION
Calibration Certi cate
A wet Test Calibration certi cate is issued with every ow meter. It records serial numbers, con guration settings and calibration parameters and con rms operational performance accuracy within speci cations.
M500 Operating & Installation Manual

19
GENERAL DESCRIPTION

Electronic Con guration “Fingerprint”
A full electronic record of the full con guration setting for each transmitter is recorded during the calibration process. This “electronic ngerprint” can be used to con rm correct con guration

of the transmitter, and can be ustilised for the ongoing veri cation and validation of meter operational performance.

M500 Operating & Installation Manual

20
FLOW DETECTOR INSTALLATION

Flow Detector Installation
Flow Detector Installation Precautions
· Do not drag or roll the ow detector on its end as this may damage the liner or ange mounting surfaces.
· The ow detector must be installed so that it remains full of liquid at all times during normal operation. There are also further requirements for the arrangement of pipe-work required for installation as detailed in the following section “Pipe Location and Arrangement”.
· Be aware of the need to provide proper earthing bonds and to t earthing rings to the pipe-work to ensure proper operation. This is described in the following section.
· Check the ow detector and ow transmitter are marked with the correct serial numbers as given in the calibration report supplied with the owmeter. For buried ow detectors, record all details listed on the ow detector prior to burial.
· Where tted, eye bolts should be used to lift the meter. If eye bolts are not tted, slings and spreaders should be used.
· 2060 ow detectors have an insulating liner that extends over the ange faces. The liner does not act as a gasket. Pipe ange gaskets must be tted between the owmeter lining and the adjacent pipework.
· Gaskets will also be required for 2020 style ow detectors when tted with anges.
· 2020 ow detectors may be supplied with spigot connections on one or both ends, which are intended for installation using Gibault style connectors or solvent welded to ABS pipe. If using Gibault connectors prior to installation check that the outside diameter of the pipework matches the outside diameter of the 2020 ends so that the Gibault connector can be properly tted (refer Gibault manufacturer’s speci cation for maximum allowable variation).

Pipe Location and Arrangement
The following recommendations are provided as a guide only. It is common for government authorities and private institutions to have mandatory requirements and procedures for installation of electromagnetic owmeters.
The following points must be followed to ensure proper operation of the owmeter:
· The ow detector may be installed at any angle but it is extremely important to ensure that it is completely lled with liquid when a ow measurement is required.
· Particular care should be taken to ensure that entrained air cannot accumulate in the owmeter or be swept through it from surrounding pipework. This will adversely affect the ability of the owmeter to obtain a proper measurement.
· The owmeter can distinguish between forward and reverse ows. Each ow detector is tted with an arrow indicating the normal forward ow direction for the installation.
· Electromagnetic owmeters require that the uid is as free from turbulence as possible
within the ow detector. Accordingly it is necessary to locate the ow detector within straight sections of pipework. Recommended practice is to ensure that the sections of straight pipe are at least ve times the internal pipe diameter from the ow detector.
· For ow metering applications where the ow detector is required to measure both
forward and reverse ow the 5 times rule should be obeyed for both the upstream and the downstream pipe sections. For forward measurement only the length of the downstream pipe can be reduced to 3 times the pipe internal diameter.
· Where pipe reducers are used to t the ow detector to a pipe with a different diameter, steep tapers of greater than 8o should be avoided and the reducers should be located as far away from the ow detector as possible.
· The ow detector has a removable cover for access to internal wiring connections. The ow detector must be located so that the cover is accessible and easily removed for installation of cabling and associated conduit.

M500 Operating & Installation Manual

21
FLOW DETECTOR INSTALLATION

· 2020 and 2060 ow detectors are suitable for direct burial of the ow detector. Be certain that their location is suitably marked or noted to avoid damage due to subsequent digging or trenching operations.
· 2020 and 2060 ow detectors may also be submerged under water if required (2060 maximum depth 10 metres, 2020 maximum depth 1.5 metres).

The ow detector may be mounted vertically. In this case it is essential that the water ow is in the upwards direction to ensure that the pipe remains full of liquid.
Mount the ow detector vertically for applications where the liquid can contain sediment, sand or other particles. This will help to reduce wear on the ow detector lining surfaces and electrodes.

The following gures depict the requirements for ow detector installation.
Mount the ow detector within straight lengths of pipes to ensure accurate ow measurement.
The length of pipes must provide a minimum distance between the ow detector electrodes and pipe bends, pumps, valves or other items that may cause the water ow to be disturbed.

Locate within Straight Sections of Pipe

Locate within Straight Sections of Pipe

The ow detector must remain completely full of liquid for accurate ow measurement. In sections of pipe as shown in this example located the ow detector in the position as shown. Do not mount the ow detector in the top (horizontal) or in the vertical section where ow is downwards.

The lengths of straight pipe sections must be:
· A minimum of 5 times the ow detector diameter from the electrodes for the pipe feeding the ow detector (ie upstream).
· A minimum of 5 times the ow detector diameter for the downstream pipe for reverse ow measurement applications.
· A minimum of 3 times the ow detector diameter for the downstream pipe where the application does not involve reverse ow measurement.

Ensure the Pipe Remains Completely Full of Liquid
M500 Operating & Installation Manual

22
FLOW DETECTOR INSTALLATION

The ow detector can be tted within inclined sections of pipes, with the conditions noted above: · Must be tted within straight sections of pipes
of minimum lengths. · The pipe must be completely full of water at the
ow detector ­ it is preferable to locate the ow detector at the lowest point in the incline. · The ow detector must be mounted with a tilt of less than 20 degrees to vertical.
Mounting within Inclined Pipes
Fit the ow detector within a section of pipe that is lower than the surrounding pipework for pipes that are known to run partially lled. Caution: this may lead to problems where the pipe carries liquids containing particulate matter.

Other Pipe Layout Requirements & Standards
Note ­ There may be State or National Metering Standards that may impose different requirements on the straight pipe requirements. Guidance should be sought from relevant state agency or by reference to National Metering Installation Guidelines.
Flange faces of adjoining pipework must be aligned and parallel within reasonable limits. Excessive misalignment could result in leakage from the ange or place undue stress on the structure of the ow tube, resulting in internal water leakage and failure of the meter.
Design allowance for structural slippage in pipe-supporting framework can reduce severity of longitudinal stresses.
These longitudinal stresses are often imparted through thermal variation in the pipework and / or `pulling together’ of the pipework by the ange bolts, during installation of the meter.
Installation of a meter in xed pipework can cause damage to the meter if there is not suf cient slippage or capacity to accommodate gaps.
Bolts should be tightened in an opposite pattern.

Use a U Section When Pipe is Partially Full
Flow metering accuracy can be improved by tting the ow detector between ow area reducers. Caution: The reducers will cause unwanted turbulence and affect measurement performance if the angle of the tube is greater than 😯 to the horizontal. Caution: Installing reducers will cause pressure drop in the line.
M500 Operating & Installation Manual

23
FLOW DETECTOR INSTALLATION

Electrical Installation of Flow Detector
The electrical wiring and connections at the ow detector include:
· Electrodes ­ there are three electrode connections, two measurement electrodes and one pipe not full detection electrode.
· Coils ­ two connections are provided to drive the coils that produce the magnetic eld within the ow detector.
· Signal ground ­ depending on the model of ow detector, there are two or three connection
points for ground reference between the ow detector and ow transmitter.

· Earthing – for correct operation it is essential for the o wing liquid to be earthed at both ends of the ow detector. Recommended earthing also includes connection to an earth stake located near the ow detector.
The connections between the Flow Detector and the Flow Transmitter usually require three individual cables: a signal cable and cables for the coil drive and pipe not full signal.

Signal Cable Connection
For proper operation and to enable full speci ed accuracy of the owmeter the following signal connections must be made at the ow detector.

The connection arrangements for two styles of cables are shown in the diagram below:

Communications Functional Characteristics

Connection Electrode (+) Electrode (-)

Signal Flow voltage positive Flow voltage negative

Guard (+) Guard (-) Inner Shield

Signal guard driver positive Signal guard driver negative Cable shield wire (drain wire)

Outer Shield

Overall cable shield

Notes Proper operation requires these millivolt signals to be as noise-free as possible.
Do not connect at Flow Detector
Ground connection between Flow Detector and Flow Transmitter Connect to earth bond at Flow Detector

Pipe Not Full (PNF) Cable Connection
For ow detectors with a PNF electrode the following signal connections must be made at the ow detector.

Communications Functional Characteristics

Connection PNF Electrode

Signal Pipe not full

Outer Shield

Overall cable shield

Notes
Proper operation requires this millivolt signal to be as noise-free as possible.
Connect to earth bond at Flow Detector

M500 Operating & Installation Manual

24
FLOW DETECTOR INSTALLATION

Coil Drive Cable Connection

Connection Outer Shield

Signal Overall cable shield

Coil A Coil B

Coil drive A Coil drive B

Notes
Connect to earth bond at Flow Detector
Provides coil drive to Flow Detector.

Earthing
For correct operation it is essential for the owing liquid to be earthed at both ends of the ow detector. If the adjacent pipework does not
contain an electrically insulating lining and is in good electrical contact with the liquid then the adjacent pipes can be used for the earth connection.
Earth straps should be connected between the pipework anges and the owmeter anges particularly when exible self sealing couplings are used. Flange bolts do not always provide good electrical earth connections between metallic anges.

If adjacent pipework is not electrically conducting or is lined with an electrically insulating material, then earth rings or earth electrodes must be used. These earth rings must be strapped to the ow detector anges at both ends of the ow detector. Earth rings must be installed with a gasket either side.

Some ow detectors have an internal lining that extends over the ange faces. The lining material does NOT form a gasket. When installing the ow detector, gaskets must be provided between the owmeter lining and the adjacent pipe anges.
2020 Flow detectors have a reference electrode eliminating the requirement for earth rings in non conductive pipes.

M500 Operating & Installation Manual

25
FLOW DETECTOR INSTALLATION

Flow Transmitter Installation
Flow Transmitter Installation Precautions
· Observe the recommended operating conditions for the ow transmitter (refer to Speci cations), including the speci ed maximum cable distance between the ow detector and ow transmitter.
· Do not position the transmitter so that it is dif cult to operate the electrical disconnect device. Ensure that the power switch is accessible to personnel.
· Cables between the ow detector and ow transmitter should be run in metal conduit for mechanical protection and noise minimisation. Recommended practice is to earth the conduit which should be run up the inside of the ow transmitter mounting post.

· Flow transmitters should be located in a shaded position to minimise heating and effects of sunlight.
· Position the transmitter at a height that provides convenience of reading the display and operating the keypad.
· Separate conduits are needed for coil supply, signal and accessories. Refer to Part C Mechanical Installation of Flow transmitter for details.
· Ensure the electrical power supply for the M500 is adequately earthed.

Electrical Installation ­ M500
Electrical installation should be carried out by suitably quali ed personnel and should conform to local codes and wiring practices.

To access the electrical connections open the small lid with allen keys. Do not attempt to connect or disconnect the AC wiring unless appropriately qualified to connect and disconnect.

Flow Detector

FLOW TRANSMITTER

POWER SUPPLY WIRING 240VAC MODEL
L N GND GND + 12 – 24VDC NOT USED
M500 Operating & Installation Manual

26
FLOW DETECTOR INSTALLATION
Flow Signal
The ow signal is received via the shielded 4 core black cable. The cable should be located against the inside of the box down to the terminal strip. It needs to be long enough to enable the battery to sit in the bottom of the enclosure and for the door to be opened without applying tension on the cable. The cable fits through the M16 gland.
Electrical connections should be carried out following best practices outlined in the Australian Standards for Wiring AS/ NZS 3000:2007.
Coil Connection
The coils are connected using the orange sheathed cable with red, black and green cores. The coil cable fits into the M20 gland of the transmitter.
Pipe Not Full Cable
Where required a second black cable is tted, the yellow conductor connects to PNF input and the shield is connected to PNF Shield.
Data transmission cable
Where tted, a data cable or 4-20mA transmission cable can be inserted through an M16 gland or through the M25 conduit entry provided the conduit is of appropriate dimensions.
Conduit Entry
The M25 gland is able to seal effectively provided the conduit diameter is between 11mm and 17mm.
M500 Operating & Installation Manual

27
KEY FEATURES

Low Power Mode Operation
The M500 Flowmeter is designed for low power operation at remote sites. A power saving mode is available whereby the unit remains in a sleep (low power) mode and only wakes up and performs a measurement (high power) mode at user prede ned intervals. Typically the units are con gured to wake up every 3-5 minutes and remain awake for 30 seconds. During the shutdown or sleep period, the ow totalisers continue to accumulate in real time, and all outputs such as pulse, frequency and current outputs continue to operate. Serial communications are available at any time. If two successive zero ow detections occur, the system shuts down for a con gurable extended off period. (Refer to the section below – Con guration).
To read the meter while in the power saving mode it is simply a matter of pushing the tick button. This will wake the system up to initiate a new ow measuring cycle and to update the display with the new ow rate. This feature can also be used when setting or adjusting the ow rate. The LCD and backlight have programmable off-times: pressing a key will wake the LCD which has an auto-off feature.

Off time
The off time determines how long a period the device will enter into a low power state between corresponding scan intervals. Increasing the Off time decreases power consumption, while on the other hand, decreasing the Off time will provide more ow readings on a more regular basis.
On time
The On time determines how long the system is active for. The On time includes:
· Time to power up ow metering circuits
· Time to perform ow readings
Critically, the On time must be long enough to allow the device to generate a new ow reading. Without allowing for this, the ow rate would never be updated. To ensure this does not occur, the rmware automatically extends the On time, if the user has selected a value that is too short to generate a new ow reading at the current coil frequency or response time setting.
Shorter on times will typically reduce power consumption (only if the off time is > 0), while longer on times will allow more ow readings to be performed in quick concession.

Flow Measurement Process
· The unit wakes from Sleep mode after the user de ned Off Time.
· The unit powers up the ow meter circuit and performs digital ltering to generate clean ow readings. After the xed warm up period the LCD screen will update with ow reading.
· Smoothing (running average of between 1-100 points) is then applied to the ow readings.
· Unit will remain awake for the remainder of the Wake (On Time) with live ow updates
· After the Wake time the unit then returns to sleep mode.
· During sleep mode all outputs remain at their current values until the next wake up.
· All other data (Date, time, ow totals) continue to update in real time during the sleep mode.

No Flow Condition
When the ow rate falls below a speci ed value “Zero Flow Cut Off” the transmitter forces the
ow rate to zero and a `LOW FLOW’ message appears on the LCD screen.
Pipe Not Full Condition
The owmeter includes a ‘Pipe Not Full’ function which can be enabled or disabled in the con guration. The transmitter utilises an electrode located at the top of the pipe. If there is no water covering the electrode then the transmitter will show a ‘PIPE NOT FULL’ message. If a “Pipe Not Full” conditions is detected ­ ow rate is forced to zero ow.

M500 Operating & Installation Manual

28
KEY FEATURES

Digital Outputs
There are two standard plus two optional digital outputs which are opto- isolated open collector NPN outputs. These outputs can be con gured to operate in the following modes: · Frequency output: the frequency is proportional
to the selected ow channel which may be ow rate, velocity or mass ow. The range of output frequency can be programmed in the range 0 to 1000 Hz. Frequency output will continue during power save mode. The frequency outputs allow retransmission of ow rate variables to an external system.
· Pulse output: pulses are generated in proportion to the occurrence of a speci ed volume of ow volume. For example the system may generate one pulse for every 10 litres. The duration of the pulse and the totaliser channel that causes the pulse can be selected. Pulse outputs continue during the power save mode. Pulse outputs are typically used to interface with remote counters, telemetry systems and watering systems.
· Alarm Indication: the output can be used to indicate an alarm condition, such as a fault condition. The alarm cause is able to be con gured.
Dual Totalisers (Peak and Off Peak Flow Totals)
The 500 series includes two independent ow totaliser channels (Dual totalisers) to keep track of ow volumes that may be delivered during certain times of the day. This function is typically used to keep track of Pumped Flows delivered during Off Peak Electricity Tariffs, and ow volumes delivered during Peak Electricity Tariffs. The user can enter the start and stop times for the Off Peak Period (which usually coincides with low electricity demand ­ for example 23:00 ­ 07.00AM).

Modular Electronics
The 500 Series ow transmitter is designed to operate with a wide range of ow detectors (from 50mm up to 1000mm diameter) and has exibility to be able to be swapped to operate on different
ow detectors. Several user con guration parameters (Flow Tube Factor and Flow tube zero) are able to be changed to allow the transmitter to operate on different ow tubes. This feature allows a small number of spare electronics packages (doors) to be held for swapping into remote sites as required.
Signal Measurement & Processing
The unit wakes up to take measurements and provide various signal processing and digital
ltering routines to deliver a highly accurate and repeatable ow signal. The outputs from the
ow meter update only after a smooth clean ow reading is available. The user can con gure the unit to best meet the measurement requirements and wide range of site conditions.
Electrode Check (EC measuring) & Signal Check (within range)
The I500 diagnostics checks the functionality of the electrodes and the presence of known faults in the signal which could be caused by an issue such as a short circuit inside the detector head or a fault in the cable.

M500 Operating & Installation Manual

29
KEY FEATURES
Operation
The M500 Electromagnetic Flowmeter local interface consists of a graphic LCD display with 4 button capacitive touch keypad. Pressing the tick key will wake up the unit and activate the display. If the unit is in sleep mode then pressing a key will cause ow metering to recommence. The local interface provides six main functions: · Power up Display (self-test status and rmware
version indication). · Display of ow variables and alarms. · Passcode entry. · Read only display of settings and
diagnostic information. · Con guration of user settings
(con guration menus). · Calibration settings menu.

Power up Display
When rst powered up, the ow transmitter performs a series of self-checks and auto

calibration. The Firmware Version is displayed on the top line.

Code ADC ESN CRC DAT RTC PSU CIV

Self Check Result if Pass Digital operation of the 24 bit sampling Analog to Digital Converter is correct The electronic serial identi cation number is valid: the serial number is displayed The basic calibration data in EEPROM is valid The le system on the SD Card is valid Digital operation of the Real Time Clock is correct A voltage within the correct range is present on either the battery or solar inputs The ow detector coils are within the correct voltage and current range

M500 Operating & Installation Manual

30
KEY FEATURES

Password Access ­ LCD SCreen
The M500 is designed to meet new Australian standards for Non Urban Metering and provides

several levels of password access and protection as follows:

Access Level User Low Med
High

User Type

Functions

Password

Landholder / Operator

Read Flow Data

Water Baliff / CSO Read Con guration & Diagnostic Settings

Asset Owner / Meter Technician

Read all con guration and diagnostic settings, Limited Write capability

Asset Owner /

Full Read and Write

Meter Technician Con guration Settings

No Password required Level 0
Level 1
Level 2

Push Any Button to scroll through display screens Hold Tick Key 2s Enter Level 0 code Hold Tick Key 2s Enter Level 1 code
Hold Tick Key 2s Enter Level 2 code

Password Access ­ MagMate Software
The Mag Mate software prompts the user to enter a password to perform various changes as follows:

Access Level Low
Med
High

User Type

Functions

Password

Water Service Of cer Meter Technician
Asset Owner / Factory trained & ceri ed Meter Technician

Connect to View and collect diagnostic & ow
Read Con guration & Diagnostic & modify con guration Settings
Full Read and Write access to all available Con guration Settings

No Password Level 1
Level 2

Note:
LCD Passwords can be changed by the user.
(User is permitted to change current level password or lower level passwords)
Magmate Passwords are hard coded into the I500.
If Passwords are lost or forgotten: Please contact your Aquamonix service team for assistance.

M500 Operating & Installation Manual

31
KEY FEATURES

Flow and Totaliser Channels Displays (User Access Level 0)
Flow and totaliser channels are updated approximately once every second when the
owmeter is in sampling mode and the totalisers update once per second when also in sleep mode.
If the LCD is not active this does not necessarily mean that the owmeter is in low power mode. Similarly, the LCD may be active when the owmeter is not scanning and is in sleep mode.
Access to the ow and totaliser data displays does not require passcode access and the displays can be selected using the up and down arrow buttons.
The default ow channel display “Flow Rate” is shown left. This display will appear after the self test and version information display and shows the present ow rate, ow velocity and status of alarms.
In the example shown, the ow rate is 4.16832 litres per second, the ow velocity is 2.12295 metres per second.

Pressing the up or down key will select the next display. Pressing the back key will return to the Flow Rate display. The nett total display shows the nett (forward minus reverse ow total) and the forward and reverse total components.
The Peak Total display shows the totalised ow values during the peak period for the day.
The forward and reverse totals are shown along with the volume units. The display units can be changed by entering the menu system.

The STATUS Bar at bottom of screen will display any ALARM information
The display of alarms requires that the alarms are first configured through the setup menus and the alarm condition is active. As an example, alarm 1 can be configured for low battery alarm and when the battery voltage is low a message “Low Battery” will appear next to the text “ALM” on the LCD. There are 4 possible alarms and if more than one alarm exists then the display cycles through each alarm and displays the status on the LCD.

Similarly, the Off-Peak Total display shows the totalised ow values during the off-peak period.

M500 Operating & Installation Manual

32
KEY FEATURES

The Year To Date (YTD) Total screen shows the nett (forward less reverse) totalised ow value on the rst line. The second and third lines show the forward and reverse ow values.

Passcode Entry
Passcodes are used by the 500 series ow transmitter to provide multi-level access to data displays. The passcode access automatically expires one minute after the user exits back to the channel data displays. Until the passcode expires, the user retains access to the user settings and further information pages without having to reenter the passcode. Once the passcode expires, the user is prompted to enter a password prior to gaining access to restricted areas.
There are 3 levels of passcode protection, described below.

Thre are two power inputs to the owmeter: a battery input and an optional input from a solar panel. The voltages for each are displayed on the Battery Voltage display.

Level 0
1
2

Access
Correct passcode allows full read, no write.
Correct passcode allows full read, limited write
Correct passcode allows full read and full write.

The Reset/Uptime screen provides diagnostic information. It shows the number of power on resets. And the uptime since the last reset in days and hours.

Access level 0 requires a valid passcode and allows the user to view all information but not make changes.
Access level 1 requires a valid passcode to be entered and allows the user to view all information and make changes to the con guration (setup) settings. Write access is limited to con guration setup parameters: calibration settings are read-only.
Access level 2 provides full read and write access including calibration settings.
If a user enters a level one passcode, the passcode must be allowed to expire before entering a level two passcode.
The method to enter a passcode is shown below.
To access the Passcode entry page, hold the `tick’ button when viewing any of the channel data displays pages from the Data Channel series of pages.

The ow totaliser units (kilolitres, in the above example) can be changed in the con guration menus. This is discussed in detail in a following section. The latch date (start of the year) and peak and off-peak times (hours of day) can also be con gured using the menu.

M500 Operating & Installation Manual

33
KEY FEATURES

After holding the `Tick’ button for 2 seconds, the user is prompted with the passcode entry page.

Pressing `Tick’ accepts the change.

The cursor can be moved left and right using the up and down buttons.

The access code is not validated until the user presses the Back button.
In this example, `0123′ is a valid level 2 passcode.

Pressing `Tick’ selects a digit. The inverted digit indicates that it can now be changed.

Repeating the above steps with an invalid passcode results in denied access. After displaying the screen for approximately 1 second, a failed passcode attempt returns to the previous Data Channels display.

Pressing Up’ orDown’ increments or decrements the digit.

M500 Operating & Installation Manual

34
KEY FEATURES

Settings and Diagnostic Information Displays (User Access Level 1 or 2)
The settings and diagnostic information displays can be viewed only with access level 1 or 2 and by a momentary press of the tick key. The information is shown in summary format so that it can be concisely displayed. A description of the information displayed is presented below.
SITE ID: an assignable number and is independent of the Modbus address.
METER ID: an assignable number and is independent of the Modbus address.
SERIAL NUMBER: each ow transmitter has a unique electronic serial number in a 12 digit hexadecimal format, as shown. Refer this number in any warranty or technical support enquiries.

BATTERY VOLTS: Battery Voltage at the power connector.
SOL VOLTS: Solar Voltage at the power connector. This voltage may show a non- zero reading when the solar panel is not connected. This is normal and does not indicate any fault in the electronics.
BATTERY AMPS: Battery Current during solar charging.
TEMPRATURE: temperature within the ow transmitter enclosure [°C]. This may differ from outside air temperature.
SIGNAL IN: Signal Input Voltage. The voltage of the ow signal from the ow detector in millivolts.

CARD SLOT 1 ­ 3: shows the currently installed option cards.

DATE/TIME: current date and time.
The current date and time shown in the format dd/mm/yy hh:mm:ss.
The example shows the time is 38 seconds past 3:16pm on the 15th of June 2009.
FACTORY CALIBRATED: date and time the unit was calibrated in the factory.
LAST FIELD CALIBRATED: date and time the unit was last calibrated in the eld using the Aquamonix in eld veri cation tool.

The 500 series ow transmitter has 4 alarms that can be con gured to generate a digital output and/or for alarm event logging. The Alarm Status display shows the con guration of the 4 alarms at the left, and the status of each alarm at the right.

M500 Operating & Installation Manual

KEY FEATURES
COIL CURRENT is the coil current setting in mA (not the measured current). TUBE SET 0 to 2: the threshold ow voltage de ned in mV. If the unit is calibrated for multitube factor operation, this setting allows the device to utilise settings speci cally calibrated for low ow operation.

35
SIMULATE MODE: Simulation Mode, 0. Normal operation 1. Flow signal simulation 2. Coil DC output simulation. FAILSAFE LOW: determines whether the ow rate outputs assume zero or full scale on a signal fault. PNF DETECTOR: the pipe not full detector status: enabled (ON) or disabled (OFF). PNF THRESHLD: a set point for the PNF detector. EC THRESHLD: a set point for the Electrode Checking detector.

TUBE FCTR 1-4: the calibrated tube factors. TUBE ZERO: the calibrated tube zero.

DENSITY: the relationship between ow rate and mass ow rate.
COIL FREQ.: the coil output switching frequency to drive the coils in the tube.
PIPE DIA.: the diameter of the pipe in mm.
MAINS FREQ.: the frequency of the rejection lter used for the input signal processing.

SIMUL. VAL: value that is set when the simulation mode is enabled.
FULL SCALE: ow rate full scale – used for the high ow rate alarm set-point, expressed in the
ow rate units.
LOW CUTOFF: Low ow rate cut-off, expressed as a velocity in mm/sec. The percentage of full scale below which ow is considered to be negligible and therefore 0.
ZERO CUTOFF: Low ow rate cut-off, expressed as a velocity in mm/sec. The percentage of full scale below which ow is considered to be negligible and therefore 0.

M500 Operating & Installation Manual

36
KEY FEATURES

VOLUM. FCTR, TIME FCTR, TOTALS FCTR: scaling factors can be applied to the volume, time and totaliser units instead of standard units: these are the scaling factors.
OFF PEAK START: Off peak period start time in 24 hour format. OFF PEAK STOP: Off peak stop time in 24 hour format END OF YEAR LATCH: end of year latch date. The date at which the YTD totals are all reset to 0. It is in the format hh:mm:ss dd-MMM The example shows that the latch date occurs at the very beginning of the new year (1st January at 00:00:00).

TYPE: selectable from frequency output, pulse output, alarm output or disable.
MAX FREQ: the maximum output frequency when in frequency mode. This value correlates to the full scale ow rate.
CHANNEL: the channel that causes the pulse or frequency output.
PULSE SCALE: the value of each pulse output in Litres. The example shows that each pulse represents 1L of ow.
PULSE WIDTH: the width of the pulse in ms. The example shows that each pulse has a width of 20ms.
STATUS: shows the current status of the output (ON or OFF).

Alarm settings show the alarm cause, for example low battery, low ow, high ow, pipe not full, system fault, forward ow, reverse ow.
LOG ALARM: if ON the alarm is logged to the SD card when the alarm condition changes from false to true.

ACTION: selectable from forward (0% = 4mA, 100% = 20 mA), reverse (0% = 20 mA, 100% = 4mA), bidirectional (0% = 12mA, 100% = 20 mA, -100% = 4 mA).
CHANNEL: selectable from ow rate, ow velocity or mass ow.
DAMPING: a signal smoothing factor.
ZERO TRIM: the ow value at which the output is 0%.
SPAN TRIM: the ow value at which the output is 100%.

M500 Operating & Installation Manual

KEY FEATURES
MODE: selectable RS232 or RS485/422. ADDRESS: Modbus address 0..247 BAUD RATE: selectable 9600, 19200, 38400. SETTINGS: selectable N,8,1 or N,7,1.
COIL VOLTS: The steady-state coil voltage when current is applied. COIL CURRENT: the steady state measured coil current setting in Amps. COIL OHMS, Coil resistance. The measured resistance of the coils.

37
Con guration (User Access Level 2)
It is highly recommended that all con guration settings be checked and documented to ensure the unit is con gured to suit the particular site requirements and to provide a history of the site con guration settings.
Con guration Menus
The con guration menu is accessed by entering a valid Level 2 passcode.
Back button ­ return to previous display. Up and down buttons – move selection. Tick button ­ select menu option.

This display shows the status of the diagnostic checks that are regularly performed by the
ow transmitter.

Con guration Sub-menus
Each menu selection has a submenu that allows parameters to be selected to change settings. Back button ­ returns to con guration menu. Up and down buttons – move selection. Tick button ­ select submenu option.

M500 Operating & Installation Manual

38
KEY FEATURES

Parameter Types
There are four main parameter types as outlined below.

Type Option

Example Display

Numeric

Time

Date

Description Option selection The user is able to select from a list of options/choices using the up and down buttons. Pressing the back key selects that option. The option when selected is saved to the non-volatile settings memory.
Numeric entry The user is able to change the number to any number within a valid range. The current value is displayed for reference. The method for changing settings with a number eld is shown in a following section.
Time entry The user is able to change the time eld within the speci ed HH:MM:SS format. Note that the time is 24 hour format.
Date entry The user is able to change the date eld within the speci ed DD/MM/YY format.

M500 Operating & Installation Manual

KEY FEATURES
Changing Numeric Parameters
Screen

39
Action The screen shows the number from the eld matching that of the current value. The cursor is currently underneath the +’ symbol. The next image shows the effect of pressingTick’.

Pressing Tick’ when the cursor is beneath the sign (+’ or -), allows the symbol to be modi ed. The picture shows an inverted `+’ symbol, indicating it can be changed as per the next image in the series.

Pressing Up’ orDown causes the sign of the number to change. The number is now a negative number.

Pressing Tick accepts the change, returning the cursor to the digit select format. Pressing Up’ orDown’ now moves the cursor to the left and right respectively.
Pressing `Down’ causes the cursor to move to the right and underneath the most signi cant digit.

M500 Operating & Installation Manual

40
KEY FEATURES
Changing Numeric Parameters
Screen

Action
Pressing `Down’ causes the cursor to move beneath the decimal symbol.

Pressing Tick’ selects the decimal point, placing an arrow beneath it and allowing it to be moved left or right. Note: The pictured example, will not allow the decimal point to move further left. Nor can the decimal point move further right than the last digit. PressingDown’ moves the decimal point 1 digit to the right.

Pressing `Tick’ accepts the new location of the decimal point and returns the cursor to the digit select mode.

Pressing `Down’ moves the cursor to the right.

M500 Operating & Installation Manual

KEY FEATURES
Changing Numeric Parameters
Screen

41
Action Pressing Tick’ selects the digit and allows it to be modi ed. Pressing Up’ and `Down’ in the selected state increment or decrements the digit respectively.

Pressing Down’ decrements the digit causing the number to wrap back around to 9′. Note: Pressing Back’ when a digit is selected causes the digit to return to the previous value and the cursor to its original state as a digit select cursor. PressingTick’ accepts the new value for the digit.

Pressing Back’ prompts the user whether they wish to save the modi ed number to the current setting. PressingTick’ when “NO” is selected causes the device to return to the previous menu without saving the modi ed number. Pressing Up’ orDown’ moves the selected option as shown in the next image in the series.
Pressing `Tick’ when “YES” is selected from the save change prompt causes the device to return the screen to the previous menu and saves the new setting causing it to take effect.

M500 Operating & Installation Manual

42
KEY FEATURES
Changing Time Parameters
Screen

Action
The time eld allows the user to change any of the digits individually. Pressing Up’ orDown’ moves the cursor left or right respectively.

Pressing `Down’ moves the cursor to the next digit on the right.

Pressing `Down’ moves the cursor to the next digit on the right.

Pressing `Down’ moves the cursor to the next digit on the right.

Pressing Tick’ allows the selected digit to be modi ed by pressingUp’ or `Down’.

M500 Operating & Installation Manual

KEY FEATURES
Changing Time Parameters
Screen

43
Action Pressing Down’, decreases the value of the selected digit by 1. PressingBack’ returns the digit to the previous value, pressing Tick’ changes the digit to the new value while both keys cause the cursor to return to the digit select cursor type. The user has pressedTick’ accepting the new value and returning the cursor to the digit select type.

Pressing Back’ prompts the user if they wish to save the new value. Pressing Back’ removes the save change prompt. Pressing Up’ orDown’ changes the response to “YES” or “NO”. Responding with “NO” results in the device returning to the previous setting menu without making changes to the time setting.
Selecting “YES” returns the unit to the previous setting menu saving the new time setting.y

M500 Operating & Installation Manual

44
KEY FEATURES
Changing Date Parameters
Screen

Action
The date eld allows the user to change any of the digits individually. Pressing Up’ orDown’ moves the cursor left or right respectively.

Pressing `Down’ moves the cursor to the next digit on the right.

Pressing Tick’ allows the selected digit to be modi ed by pressingUp’ or `Down’.

Pressing Down’, decreases the value of the selected digit by 1. Pressing Back’ returns the digit to the previous value, pressing Tick’ changes the digit to the new value while both keys cause the cursor to return to the digit select cursor type. PressingTick’ the user has changed the date from the 15th to the 14th.

M500 Operating & Installation Manual

KEY FEATURES
Changing Date Parameters
Screen

45
Action Pressing Back’ prompts the user if they wish to save the new value. PressingBack’ removes the save change prompt. Pressing Up’ orDown’ changes the response to “YES” or “NO”. Responding with “NO” results in the device returning to the previous setting menu without making changes to the date setting.
Selecting “YES” returns the unit to the previous setting menu saving the new date setting.

When YES is selected from the Save Changes prompt, it may take up to 30 seconds until the change is stored within non-volatile memory.

M500 Operating & Installation Manual

46
KEY FEATURES

Selection and Con guration of Digital Output Parameters

Screen

Action After holding the `Tick’ button for 2 seconds, the user is prompted with the passcode entry page.
Enter Level 1 / Level 2 access code.

Select `7. DIGITAL OUT MENU’. Using the up and down arrows, and pressing TICK.

Select mode for channel 1 using `DIGITAL OUT MODE’ (item 7.1). The choices include Off, Frequency, Pulse and Alarm.

M500 Operating & Installation Manual

47
KEY FEATURES

Selection and con guration of `frequency output’ method

Screen

Action Select FREQUENCY’ from menu item 7.1 using the up and down arrows, and press TICK. Pressback’ to go back to the DIGITAL OUTPUTS menu.

Select `FREQUENCY MAX 1′ from the digital outputs menu. Press TICK.

For frequency Max 1: Select frequency max (menu item 7.2) choosing a value between 0 and 1000. Values can be chosen by: (1) pressing the up and down arrows to select the number, (2) pressing TICK to modify the number, and (3) pressing the up and down arrows to change the number. Press BACK’ to exit the FREQUENCY MAX 1 selection. Select7.3 INPUT CHANNEL 1′ from the digital outputs menu.

From Input channel 1, select the parameter for monitoring from the list of velocity’, ow rate’, mass ow’,fwd total’, rev total’, andnett total’.

M500 Operating & Installation Manual

48
KEY FEATURES

Selection and con guration of `pulse output’ method

Screen

Action Select `PULSE’ from menu item 7.1.

Select input channel 1 (option 7.3).

From Input channel 1, select the parameter for monitoring from the list of velocity’, ow rate’, mass ow’,fwd total’, rev total’, andnett total’.
Select `PULSE SCALE’. (item 7.4)

M500 Operating & Installation Manual

49
KEY FEATURES

Selection and con guration of `frequency output’ method

Screen

Action
Note: there is a factor of x10 in the pulse scale output. i.e. 0100 equates to 10L.
Values can be chosen by: (1) pressing the up and down arrows to select the number, (2) pressing TICK to modify the number, and (3) pressing the up and down arrows to change the number. Press `BACK’ to exit the PULSE SCALE 1 selection.

Select item 7.5 `PULSE WIDTH’.
Set the pulse width (default value is 020), by following the same procedure as followed when setting the pulse scale.

Notes:
· The pulse train out of the Digital Output is nonlinear (different to the I300 and M300 where the pulse train out of the DO is linear).
· Missed pulses (where the maximum frequency pulse output has been exceeded) will be `caught up’. I.e. the I500 will generate additional pulses in order to catch up on the pulses which have been missed.

M500 Operating & Installation Manual

50
KEY FEATURES

Selection and con guration of `alarm’ method

Screen

Action Select `alarm’ from menu item 7.1.

Go back to the main meter menus’ screen by pressing the back button. Select 6. Alarms menu’.
Select item 6.1 `ALARM CAUSE 1′.

From ALARM CAUSE 1, select the alarm cause from the list: low battery’,pipe not full’, system fault’,lo ow’, hi ow’, andforward ow.
From menu 6.2 LOG ALARM 1: Select OFF’ orON’. Repeat process for alarms 2 to 4.

M500 Operating & Installation Manual

KEY FEATURES
Detailed Menu Parameter List
Parameters are shown below in the order that they appear in the menu and submenu system. Each parameter accessible from faceplate is

51
listed below. Please note that the tables below do not include a full listing or description of the available Modbus registers.

Item ID
0.1
0.2
0.3 0.4
0.5
0.6 0.7 0.8 0.9 0.10 0.11 0.12 0.13 0.14
0.15
0.16 0.18 0.17 0.19 0.20
1.1

Submenu Name PIPE SIZE UNITS NOMINAL PIPE DIA

Value or Selection Range
MILLIMETERS INCHES
0 to 2000

METER ID

0 to 999999

FLOW FULL SCALE 0 to 9999.9

TUBE ZERO

-100 to 100

TUBE FACTOR 1 – 4

0 to 10000

Description
De nes the unit of measure for the pipe diameter. De nes the dimension for the pipe diameter in the units de ned in SA.1. The ID of the attached ow detector head. Sets the value for the high ow alarm setpoint. CAUTION. Changing this value is not advised. Changing this value may affect the rated accuracy of the device. CAUTION. Changing this value is not advised. Changing this value may affect the rated accuracy of the device.

TF CHANGEOVER 1 – 3 DENSITY COIL FREQUENCY
COIL CURRENT
4-20 TRIM ZERO 1 – 2 4-20 TRIM SPAN 1 – 2 MAINS FREQUENCY
ZERO FLOW CUTOFF

-40 to 40
0 to 5.0 0 to 8
80 to 200 (I500 Only)
-10 to 10 -10 to 10 50HZ 60HZ 50/60HZ 0 to 50

CAUTION. Changing this value is not advised. Changing this value may affect the rated accuracy of the device.
The density of the ow medium.
Decreasing the coil frequency may be required for media with low electro conductivity. Higher frequencies reduce the minimum amount of time the device must be on to generate ow readings thus potentially reducing power consumption.
CAUTION. Changing this value is not advised. Changing this value may affect the rated accuracy of the device.
Allows trimming of the 0% ow current output.
Allows trimming of the 100% ow current output.
Selects the ow signal ltering characteristic.
Determines the lower limit of ow detection. (mm/s) Velocity below this limit is set to zero.

M500 Operating & Installation Manual

52
KEY FEATURES

Item ID 1.2 1.3 1.4 1.5 2.1
2.2 2.3 2.4 2.5
2.6 3.1 3.2

Submenu Name

Value or Selection Range

Description

LOW FLOW CUTOFF 0 to 50

Determines the lower limit of expected ow rate in mm/s ­ also used as Low Flow Alarm Trigger Point..

PIPE FULL DETECT ENABLE DISABLE

Determines whether the device performs pipe not full detection prior to scanning.

RESPONSE TIME

1 to100

Determines how much smoothing is applied to the signal. The longer the response time, the longer it takes for values to become updated, though there is less uctuation between results.

FAIL SAFE MODE

FAIL LOW FAIL HIGH

Determines the ow output action when there is a measurement fault.

FLOW VOLUME UNIT

MEGALITRES CUBIC METRES KILOLITRES LITRES CUBIC FEET IMP GALLONS IMP MEGAGALLONS US GALLONS US MEGAGALLONS ACRE FEET SPECIAL FACTOR

This setting allows ow rate units.

exibility in the choice of

FLOW UNIT FACTOR -999.9 to 999.9

Only valid if `SPECIAL FACTOR’ is selected for Flow volume unit. This allows a custom
ow volume unit to be de ned.

FLOW TIME UNITS

SECONDS MINUTES HOURS DAYS SPECIAL FACTOR

This setting allows exibility in the choice of time base for the ow rate units.

TIME UNIT FACTOR -999.9 to 999.9

Only valid if `SPECIAL FACTOR’ is selected for Time unit factor (S1.3). This allows a custom time base to be used for the
ow rate.

TOTALISER UNITS

MEGALITRES CUBIC METRES KILOLITRES LITRES CUBIC FEET IMP GALLONS IMP MEGAGALLONS US GALLONS US MEGAGALLONS ACRE FEET SPECIAL FACTOR

This setting allows exibility in the choice of units for the totalisers.

TOTALS UNIT FCTR 0 to 999.9

Only valid if `SPECIAL FACTOR’ is selected for totaliser unit (S1.5). This allows custom units for the totalisers.

SITE ID

0 to 999999

BACKLIGHT TIME

0 to 999 [secs] 0 = always off.

The backlight has a timeout feature to reduce power consumption.

M500 Operating & Installation Manual

53
KEY FEATURES

Item ID
3.3 3.4
3.5 3.6 3.7 3.8 3.9
3.10
4.1 4.2 4.3
4.4
4.5
5.1 5.2 5.3 6.1 6.3 6.5 6.7
6.2 6.4 6.6 6.8 7.1 7.6 7.11 7.16

Submenu Name
LCD CONTRAST LCD TIME-OUT

Value or Selection Range
0 to 99 1 to 999 [secs]

LEVEL 0 – 1 PASSCODE CURRENT TIME CURRENT DATE SIMULATION MODE
SIMULATION VALUE

0 to 9999
HH:MM:SS DD/MM/YY OFF FORCE FLOW RATE DC CURRENT OUT -999 to +999

ON TIME OFF TIME NO-FLOW OFF TIME

20 ­ 3600 [secs] 0 ­ 3600 [secs] 0 ­ 30000 [secs]

DIAGNOSTIC RATE 1 – 20

LOGGING PERIOD 60 – 43200

OFF PEAK START OFF PEAK STOP EOY LATCH ALARM CAUSE 1 – 4
LOG ALARM 1-4

HH:MM:SS
HH:MM:SS
DD/MM/YY
DISABLE ALARM LOW BATTERY PIPE NOT FULL SYSTEM FAULT LO FLOW HI FLOW FORWARD FLOW REVERSE FLOW
ON or OFF

Description
Time after the last key press before turning off the LCD to save power. Allows the user to set a new passcode.
The current time in the format HH:MM:SS The current date in the format DD/MM/YY 0 ­ no simulation 1 ­ ow signal simulation 2 ­ coil dc simulation Only valid when the simulation mode is non-zero, this value substitutes the ow rate. The velocity and mass ow channels are adjusted to re ect the simulated ow rate while the totalisers remain unchanged. Flow scanning on time. Flow scanning off time Flow scanning off time when there is no detected ow This determines the rate at which diagnostic data is logged to ash memory. Diagnostic data is measured every scan period but is only logged on a multiple of the ON TIME’. Eg if On =30s, Off=300s, and Diag Rate = 10, the Diag Data would be logged every 10 x (300+30) = 3300 secs. The logging period allows the unit to log ow data to ash memory at regular time steps. Logging rate is set in seconds. Eg 900s = 15 minute logging period. Start time for “Off Peak Power” Stop time forOff Peak Power” Latch date for YTD processing. Selects the cause of the alarm.
Determines whether the alarm is logged to the SD card le when the alarm status changes from false to true.

DIG OUT MODE 1 – 4

OFF FREQUENCY PULSE ALARM

Selects the mode of operation for a digital output.

M500 Operating & Installation Manual

54
KEY FEATURES

Item ID
7.2 7.7 7.12 7.17 7.3 7.8 7.13 7.18
7.4 7.9 7.14 7.19 7.5 7.10 7.15 7.20 8.1 8.7
8.2 8.8
8.3 8.9 8.4 8.10 8.5 8.11 8.6 8.12 9.1
9.2
9.3 9.4

Submenu Name
FREQUENCY MAX 1 – 4

Value or Selection Range
-1000 to 1000

PULSE CHANNEL 1 – 4
PULSE SCALE 1 – 4

VELOCITY FLOW RATE MASS FLOW FWD TOTAL REV TOTAL NETT TOTAL
1 to 50000

PULSE WIDTH 1 – 4

20 to 125

OUTPUT 1 ­ 2 MODE OUT 1 ­ 2 CHANNEL DAMPING 1 – 2

OFF FORWARD REVERSE BIDIRECT
VELOCITY FLOW RATE MASS FLOW
0 to 9.9

ZERO 4-20 1 – 2

0 to 99999

SPAN 4-20 1 – 2

0 to 99999

ALARM LIMIT 1 – 2 PORT MODE
BAUD RATE
MODBUS ADDRESS REBOOT

20 to 120
RS232 RS485 RS422 9600 19200 38400 0 to 247 CANCEL REOOT

Description
De ned in Hz, the maximum frequency is only relevant if the corresponding Digital output mode is set to frequency.
Only valid when the Digital Output is con gured for Pulse Output, this setting control’s which Totals channel is monitored.
The pulse scale determines the value of each pulse generated. If the totals units are kL and the default pulse scale is used, then the value of a single pulse is 1L. Sets the pulse duration. The setting is de ned in ms.
Analog output mode.
Analog output data channel
Analog output damping [seconds] Data channel value for 0% output.
Data channel value for 100% output.
Percentage above which alarm is indicated by over range signal. Sets the option board for the electrical interface.
Selects the serial port baud rate.
Modbus address. Forces a power on reset.

M500 Operating & Installation Manual

55
KEY FEATURES

Item ID 10.1 10.2
10.3 10.4

Submenu Name MODEM ON DURATION MODEM INTERVAL
MODEM ON TIME MODEM OFF TIME

Value or Selection Range 0 to 1440 0 to 1440
HH:MM:SS HH:MM:SS

Description
Period of time that the modem power output is switched on. The time period between switching on the modem power output. The output stays on for Modem On Duration. The time after which the modem on duration and interval take effect. Time time of day when the modem on duration and interval cease to have an effect.

M500 Operating & Installation Manual

56
MAINTENANCE
General
As there are no moving parts in the Flow Transmitter there is very little maintenance. Provided the system is installed as per the instructions there are no parts to wear and the electronics and cable should be protected from external damage.

Sealing / Ingress Protection
The M500 is designed to be resistant to ingress of water and dust and features sealable glands on its base. Five glands exist in total, 1xM25, 1xM20, 3xM16. The M500 is shipped with cable glands which allow the cables to be inserted and wired into the unit whilst sealing.

Flow Detector
There is no maintenance to be carried out on the detector itself. However if it is mounted in a position that enables large amounts of silt to settle in it, the silt should be removed as it will effect the overall inside area of the owmeter which will in turn effect accuracy.

Risk of Electrocution
The M500 is provided with gland plugs which enable sealing when cable is not tted, also acting as an important safety measure. Installers must t provided gland plugs to any unsealed cable glands. A potential electrocution risk may exist if any loose object penetrates an open gland in the base.

Cleaning and Decontamination – Transmitter
Proper safety precautions must be observed when eld cleaning or decontaminating dirty equipment.
No eating, smoking, drinking, chewing, or any hand to mouth contact should be permitted during cleaning operations.
Always switch off the power prior to completing cleaning or decontamination procedure.
Use a dry rag to wipe dirt off the powder-coated metallic surfaces of the unit.
Stains or dirt on the LCD front viewing panel and interface may be cleaned with a moist cloth.
The ow transmitter should be checked to ensure that insects have not infested the housing. Insects can create short circuits in the electronics causing failure. If necessary a regular program for cleaning and/or spraying insecticide should be put in place.

Note:
Do not spray electronic circuit board with insecticide.

M500 Operating & Installation Manual

57
TROUBLESHOOTING GUIDE

The ow transmitter and ow detector have been tested in our ow laboratory prior to shipment. However if you do experience problems please note the serial number and reference number of the instrument prior to contacting either Aquamonix. The serial number may be found either on the flow detector at the point the cables enter, or on a label attached to the electronic board.
Display is Blank
Check that battery is charged and connected correctly.
Check that system is not in power save mode by pressing the tick button to turn the display on. If this fails reset the system by disconnecting battery and solar panel, waiting 30 seconds and then reconnecting, this will generate a self-test and auto calibration.

Display Is Erratic and Does Not Read Zero
Pipe may not be full of liquid. Ensure pipe is full. Check signal wiring. Increase smoothing setting (refer con guration).
No Response to Flow
Check all cabling. Check that pipe is full and there is ow. Check Diagnostic screen for reverse ow (negative voltage reading); reverse red and blue cores of ow signal cable at the terminal strip in the ow transmitter if necessary.

M500 Operating & Installation Manual

58
NOTES
M500 Operating & Installation Manual

59
NOTES
M500 Operating & Installation Manual

www.aquamonix.com.au

Ph: 1300 797 246

New South Wales: Ph: (02) 8710 4040 268 Milperra Rd, Milperra, NSW 2214

Victoria: Ph: (03) 5821 4044 19a New Dookie Rd, Shepparton, VIC 3630

Western Australia: Ph: (08) 9477 1188 1/30 Oxleigh Drive, Malaga, WA 6090

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>