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  • Works well, DC offset is a problem

    posted by jarkman on 04/12/2011

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week


    Best feature - DC clamp ammeter reading down to low currents.
    Seems solid, easy to use.


    DC current scale has a 0.7A offset for me. I am in the UK, and I suspect it needs to be calibrated for the local magnetic field. Using the Delta button for each reading is a reasonable workaround.
    DC current is also a bit variable, by 100 or 200 mA, but that's not a problem for my usage.


    I'd love to be able to calibrate mine for the local field. But the clampmeter PCB has five trimmers with unhelpful labels, so I'm not inclined to experiment. A link to calibration instructions would be very useful.


    Not bad, definitely worth the money.

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