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AQUA M A STE R4
| EL EC T R O M AG N E T I C FLO W M E T ER T R A N SM I T T ER | O I/FE T4 0 0 - EN R E V. D
8 Diagnostics
Diagnostic error messages are displayed by pressing the
Diagnostics tab:
Figure 77 Example Diagnostics window
Messages displayed are for the last flowmeter selected from
the Instruments List – see page 48.
The following icons indicate the diagnostic status:
Table 6 Diagnostic icons
Icon
Status
Icon
Status
Failure
Out of
specification
Check
function
Maintenance
required
Diagnostic error messages
Flow Measurement
Table 7 Flow Measurement – diagnostic messages
Icon
Message
Corrective action
Flow Sensor
Communications
Remote sensor is not plugged in, or not
connected. If connected, this error indicates
a connection problem, with no sensor data
connection.
Check the sensor terminal box wiring.
Empty Pipe
The pipe is not full of water. Check the pipe.
An empty pipe is indicated when either, or both
measuring electrodes have resistances which
exceed the resistance trip level.
Check each electrode SigA & SigB Impedance.
If one electrode resistance is far higher than the
other, it could indicate a wiring fault.
For very low conductivity application (< 20 uS/
cm) the electrode trip level may need to be
increased to prevent unwanted empty pipe
alarms.
High Flow Alarm
The flowrate has exceed the upper flowrate alarm
trip level. Ensure this alarm threshold is set
correctly. Disable this alarm if not required.
Low Flow Alarm
The flowrate is lower than the low flowrate alarm
trip level. Ensure this alarm threshold is set
correctly. Disable this alarm if not required.
Totalizers
Table 8 Totalizers – diagnostic messages
Icon
Message
Corrective action
Totalizer Reset A user has reset the totalizers.
Pulse Output
Saturation
Warning
The pulse output has saturated at the maximum
output frequency. An external counter will under
read compared to the true volume. Reduce the
Pulses per unit volume on the Pulse Output
Setting menu to lower the output frequency.
Maintenance Operating Modes
Table 9 Maintenance Operating Modes – diagnostic messages
Icon
Message
Corrective action
Simulation
Mode Active
The user has put the flowmeter into simulation
mode. The displays and outputs are set based on
the entered simulated input value. This error is
cleared by turning off simulation mode.
Calibration
Mode Active
The user has put the flowmeter into calibration
mode. This error is cleared by turning off
calibration mode.
Aqm4
ID:4294967295
Last access: 10/05/2021 16:35:18
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Maintenance Operating Modes
Simulation Mode Activate
Process Values
Configurtion
Diagnostics
Calibration Mode Activate
Totalizers
Flow Measurement
Pulse Output Error
Totalizer Reset
Low Flow Alarm
High Flow Alarm
Empty Pipe
Flow Sensor Communications