3.4 Viewing Harmonic Measured Values
77
The HRM ERROR lamp lights up to indicate that the synchronization frequency range has been exceeded
when unable to synchronize during harmonic measurement.
3.4.4 About the HRM ERROR lamp
The HRM ERROR lamp lights up when the instrument is unable to perform harmonic analysis due to the fre-
quency range being exceeded, noise, or for other reasons. The invalid data display [- - - - -] will be shown at
this time.
Failure of the value to flash indicates that the upper limit value cannot be changed. Take the following
action to address the issue:
Status Solution and reference for more information
During integration operation
(RUN lamp lit up or flashing)
The upper limit value cannot be changed until the integrated value is reset (so that
the RUN lamp turns off).
See: Canceling integration (resetting integrated values) (p.65)
During display hold operation or
maximum value/minimum value
hold operation (HOLD, MIN, or
MAX lamp lit up)
The upper limit value cannot be changed until this operation is canceled (so that
the HOLD, MIN, or MAX lamp turns off).
See: Canceling the display hold state (p.108)
Returning to the instantaneous value display (p.109)
If the upper limit does not flash
Accurate harmonic measurement cannot be performed
while the HRM ERROR lamp is lit up.
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