Question about Amprobe Digital Megohmmeter, Model# AMB-45

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Megger testing of wire insulation. what represents a good reading and what is a bad reading. Using a AMB45 (Amprobe) Is an "OL" good or bad?

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OL is a good reading, it represents a reading of greater than 400Mohm, with any insulation testing the greater the value the better.


Posted on Aug 28, 2009

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I have a amprobe 45 and am trying to test electrical cables.
when I set meter to 250,500 or 1000 and hit the test button the meter flashes once and reads 0.000.

Posted on Dec 15, 2009

  • edukey Feb 09, 2011


    I have Amprobe AMB-45 that when I measure a 1K resistor is measured 1.6k and gather tips measured 0.7 to 0.8ohm someone will know if you have any calibration so you can accurately measure

    Best regards



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