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4. At the Manual Range mode,if “OL” is displayed on LCD, it
indicates the tested resistance
value has exceeded the present range limit, please select the
higher range to complete the measurement.
Note:
a) When measuring the in-circuit resistance, Make sure all the
power of the tested circuit has been turned off and all capacitors are
fully discharged.
b) It will cause the reading incorrect to input any voltage when
measuring the resistance. If the voltage exceeds 250V, over-range
protection voltage, it is possible to damage the instrument and
endanger the safety of the users.
c) At Range 600Ω, short-circuit the test lead to measure the wire
resistance, and then subtract it from the real measurement.
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