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Service and maintenance
The device has been calibrated by the manufacturer before shipping. Recalibration is not
required provided the environmental conditions are maintained.
7.1
Firmware update
A firmware update is not possible.
7.2
Fault elimination measures
Fault
Device is not working.
Voltage or current measured values are not dis-
played.
Voltage values are not plausible.
Current values are not plausible.
No communication.
Power values are incorrect, although voltage and
current are correctly applied.
7KT multimeter
Manual, 08/2018, 2514284149-01
Measures
Check power supply connection.
•
Check fuse.
•
Check fuse.
•
Check configuration. You can find more in-
•
formation under Parameterizing with
powerconfig (Page 50).
Check that the measuring voltages are connected
correctly.
In the case of voltage transformers, ensure that
transformer ratios are set correctly.
Check the settings and the wiring of the current
transformers and correct if necessary.
Check communication settings.
Check voltages and currents of the phases to
•
ensure that they are properly connected to
one another.
Check the polarity of the current transformers.
•
7
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