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10. Reference
This chapter explains the ways of dealing when you think the unit is in failure, Q&A, etc.
In case you think the unit is in failure
If an abnormal sound, bad-smelling smoke, fever break out from this unit, switch it off promptly and don't use it. If you think the unit is in
failure, check the following before sending for repair.
Obtained value is incompatible with other values.
Integrated electric energy value is not measured though current value is indicated.
･
Obtained values are different from other measuring instruments.
･
Check the polarity of connection between a CT and the terminals of this unit.
Check the settings of phase wire system, primary voltage and primary current.
Wrong settings may cause the incorrect measurement.
Check whether the short circuit or disconnection is present.
Obtained values are different from other measuring instruments. (over tolerance)
Check that the measuring instrument used for comparison indicates a correct RMS value. This unit indicates an
RMS value.
If the measuring instrument used for comparison measures an average value instead of RMS value, distortion
caused by harmonic etc. in the current of the circuit to be measured causes a significant difference of values.
About error number
In case the display part indicates the error number as below, adopt measures indicated in the table below.
If the unit does not resume after measures, it may be in failure. Contact our sales representative near you.
(Example) Error No.005
Error No.
002
FRAM error
003
Memory error
004
Timeout error
005
Outside-set-value error
Communication module
009
error
Kind of Error
Press the reset button until the display (LED) turns off.
Press
Make sure that the communication module is connected
properly, then turn on the power again auxiliary.
(60/71)
Measures
or
Restore auxiliary power supply.
SET
button
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