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Chapter 7 Troubleshooting
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○ The measured value is smaller than the estimated
value.
Current measurement:
･ Check that the clamp sensor is firmly closed.
･ Check that the frequency of the measured circuit is within
the range provided in the specifications. (A smaller value
will be displayed for a high inverter carrier frequency.)
･ Check that the proper steps have been taken, according to
procedure described in 2.5.1: Auto-zero adjustment
function and 2.5.2: Zero-cancel correction function.
･ Check that you're using the proper mode. (See 1.5:
Modes.)
･ Check that the peak value is below the circuit dynamic
value provided in the specifications. (To check
transitional peak values, see Notes in 2.2.4 and 2.3.4:
Peak hold measurement.)
･ Check that the crest factor (peak value / RMS value) is
below the circuit dynamic value provided in the
specifications.
･ Check that the battery warning annunciator is off.
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