ZEN-LOG-MAN-16V03 (0930)
Copyright © 2016 Define Instruments
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9
MAINTENANCE
9.1 - Calibration
Your Zen Datalogger has been fully calibrated at the factory, and can be recalibrated in soft-
ware using Define WorkBench (see Section 4). Scaling to convert the input signal to a desired
display value is also done using WorkBench
If your Zen unit appears to be behaving incorrectly or inaccurately, refer to troubleshooting
before attempting to calibrate it. When recalibration is required (generally every 2 years), it
should only be performed by qualified technicians using appropriate equipment.
Calibration does not change any user programmed parameters. However, it may affect the
accuracy of the input signal values previously stored.
9.2 - Troubleshooting
Issue
Resolution
Input signal is not reading
correctly
Check positioning of fail-safe micro switch
The fail-safe micro switch should be switched off for all input
types except mA. See 7.1 to confirm.
Auto-detecting RS Port is
not working
Ensure that any terminal connections marked 'NC' are left
open - otherwise the Zen will not be able to auto-detect
your serial type.
Beat light stays ON for
more than 1 minute
This indicates an error. Please return the Zen RTU to the
manufacturer for analysis and repair.
Cannot power up unit
Check the power supply connections and supply range. (The
polarity on the power input is irrelevant.)
Ethernet device does not
appear on the network
when trying to connect in
WorkBench
Repower the device after you plug in the ethernet cable to
ensure that it appears on the network.
For further assistance, please contact technical support using the contact details listed at the
end of this document.
