MER-MAN-14V01 (1002)
Copyright © 2014 Defi ne Instruments
24
7
MAINTENANCE
7.1 - Calibration
The meter has been fully calibrated at the factory, and can be recalibrated in soft ware using
Defi ne ToolBox (see Section 4). Scaling to convert the input signal to a desired display value is
also done using ToolBox.
If the meter appears to be indicating incorrectly or inaccurately, refer to troubleshooting
before attempting to calibrate the meter. When recalibration is required (generally every 2
years), it should only be performed by qualifi ed technicians using appropriate equipment.
Calibration does not change any user programmed parameters. However, it may aff ect the
accuracy of the input signal values previously stored.
7.2 - Troubleshooting
Problem
Resolution
No display
Check power connections.
c.err
Internal Comms Error
Try re-starting unit. If the problem is intermittent, this error could be caused by
an EMC issue. Please refer to 5.2 for potential remedies.
Er.CL
Analogue Output Calibration Error
Factory calibration of analogue output is corrupt or missing. Return unit to fac-
tory for re-calibration.
ER.Fl
Display Flash Error
Settings such as decimal point, scaling, and brightness will be lost. Reconnect to
Defi ne ToolBox (see Section 4) and set up the meter again.
er.01
to
10
Analogue Input Error
Error type indicated by a numerical error code (01-10). Please return to factory
for repair.
Sens
Sensor Error
Sensor is missing or faulty. Check your sensor wiring.
over
A/D Overfl ow
Check your sensor wiring. If the sensor wiring is correct, check the signal level.
undr
A/D Underfl ow
Check your sensor wiring. If the sensor wiring is correct, check the signal level.
For further assistance, please contact technical support using the contact details listed at the
end of this document.
