Diagnostics; Diagnostic Error Messages; Flow Measurement; Totalizers - ABB AquaMaster4 Manual

A Q U A M A S T E R 4 | E L E C T R O M A G N E T I C F LO W M E T E R T R A N S M I T T E R | O I/ F E T4 0 0 - E N R E V. B
32

8 Diagnostics

Diagnostic error messages are displayed by pressing the
Diagnostics tab:
Aqm4_4294967295
ID: m4_4294967295
Process Values

Flow Measurement

Flow Sensor Communications
Empty Pipe
High Flow Alarm
Low Flow Alarm

Totalizers

Totalizer Reset
Pulse Output Error

Maintenance Operating Modes

Simulation Mode Active
Calibration Mode Active
Last access: 2017-06-29 15:20:30
Figure 41 Example Diagnostics window
Messages displayed are for the last flowmeter selected from
the Instruments List – see page 26.
The following icons indicate the diagnostic status:
Icon Status
Failure
Check
function
Table 3 Diagnostic icons
Configuration Diagnostics
Icon
specification
Maintenance

Diagnostic error messages

Flow Measurement
Icon
Message
Flow Sensor
Communications
Empty Pipe
High Flow Alarm
Low Flow Alarm
Table 4 Flow Measurement – diagnostic messages
Totalizers
Icon Message
Totalizer Reset A user has reset the totalizers.
Pulse Output
Saturation
Warning
Table 5 Totalizers – diagnostic messages
Maintenance Operating Modes
Icon Message
Simulation
Mode Active
Status
Out of Calibration
Mode Active
Table 6 Maintenance Operating Modes – diagnostic messages
required
Corrective action
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.
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.
The flowrate has exceed the upper flowrate alarm
trip level. Ensure this alarm threshold is set
correctly. Disable this alarm if not required.
The flowrate is lower than the low flowrate alarm
trip level. Ensure this alarm threshold is set
correctly. Disable this alarm if not required.
Corrective action
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.
Corrective action
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.
The user has put the flowmeter into calibration
mode. This error is cleared by turning off
calibration mode.