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Event
Fault
Action
Electrical Connections and Communication Output
Current Output value < 4 mA
There is no power supply
Check the power supply!
Connection of the device is incorrect. Check the connection between the device and the power supply.
The calibration of the current output
is improper.
Execute the calibration if you have authorized access, otherwise contact NIVELCO
Service centre.
Current output value 22 mA is
displayed
An error has occurred.
This happens in case the range 4 – 20 mA / error 22 mA is selected.
Check the status of the device during polling in the "Device status" window (or in the
Markers diagram), or enter the status (4.0) menu of the HART
®
communicator.
The device is in its start-up phase
Wait for 50 seconds.
If the current value drops to a value between 4 and 20 mA, and goes immediately back
to 22 mA, contact your NIVELCO Service Centre.
The value at the current output
does not identical with the value
at the display (EView2 or HART
®
communicator).
The current output settings are
incorrect.
Check the current loop and the connections.
Configure the output as described in User’s and Programming Manual of the MicroTREK
2-wire – also try to adjust the threshold using EView2 (Oscilloscope diagram / Threshold
settings) or a HHC communicator.
Data communication via the
digital interface is not working.
The MicroTREK 2-wire is in its
start-up phase, wait for 50
seconds and try it again.
The communication parameters of
the computer are set incorrectly.
Check computer setting (address/device number).
Poor connection to the interface.
Check connection.
Current output value is <4 mA.
If the problem persists, contact your NIVELCO Service Centre.
Current output value is = 22 mA