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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
Lost or forgotten password
If you lose or forget the password, a 6-digit unlock code appears on the display after three
consecutive incorrect attempts. You can obtain more information on this as well as the
activation code from Siemens Support
request/).
After you have entered the activation code, you can change the setting in the usual manner
(parameter P.01). You can find more information in chapter Command menu (Page 64).
7.3
Fault elimination measures
Fault
Device is not working.
Voltage or current measured values are
not displayed.
Voltage values are not plausible.
Current values are not plausible.
No communication
Power values are incorrect, although
voltage and current are correctly ap-
plied.
7KT16 energy meter
Equipment Manual, 09/2020, 2514284147-04
(http://www.siemens.com/lowvoltage/support-
Measures
•
Check power supply connection.
•
Check fuse.
•
Check fuse.
•
Check configuration. You can find more information
under Parameterizing with powerconfig (Page 80).
If current transformer is present, check the settings and the
connection of the current transformer and correct.
Check the settings and the wiring of the current transformer
(if present) 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, if present.
7
97
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