Hioki DT4256 - Page 65

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Measuring AC Current Using Clamp-on Probe (DT4253, DT4255, DT4256)
When clamping a cable
Attach the clamp around only one conductor.
Single-phase (2-wire) or three-phase (3-wire) cables clamped
together will not produce any reading.
NO
OK
NO
NO
NO
NO
OK
NO
When the measured value and OVER blink
The measured value exceeds the maximum display counts.
Increase the range.