Omron K7GE-MG User Manual page 87

Error Detection during Manual Measurement
If a measurement error occurs during manual measurement, the application of the Megger voltage
stops, fail is displayed to indicate "measurement failed", and this state is maintained (error detection
status).
The following three errors may be detected during the execution of manual measurement.
•
The voltage monitoring function activates. (Load restart)
•
The current limiter activates. (When the insulation resistance is extremely low, etc.)
•
The Main Unit cannot recognize the Probe Unit. (Hardware error, etc.)
The K7GE-MG can be recovered from the error detection status by pressing the Manual Measurement
Key for at least 1 second.
(This is also possible by the power ON reset process by pressing the Reset Key for at least 3 seconds.)
Procedure
The procedure of manual measurement is described as follows:
1.
Make sure the load contactor is turned OFF.
2.
Make sure the electric charge accumulated in the wiring is
sufficiently discharged.
•
Similar to the use of a Megohmmeter, either wait for sufficient
time to elapse based on your experience, or use a voltmeter to
ensure that there is no residual voltage due to the electric charge.
3.
Make sure the K7GE-MG is in the measuring stopped state in
the Operation Level.
•
If automatic measurement is in progress, wait for measurement
to complete.
Press the Reset Key for at least 3 seconds to forcibly end
automatic measurement and return the K7GE-MG to the
measuring stopped (measurement standby) state. However, all
measurement values will be cleared in this case.
Insulation Resistance Monitoring Device User's Manual (N224)
4 Functions Related to Measurement
4
MC
MC
0
V
Measurement standby
TRIG FIN
LVL
----
1
CH
MANU ERR AGE
Or, measurement
completed state
TRIG FIN
LVL
-9#2
3
CH
MANU ERR AGE
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