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  • Works well, DC offset is a problem

    posted by jarkman on 04/12/2011
    0 0

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

    Pros:

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

    Cons:

    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.

    OtherThoughts:

    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.

    Bottomline:

    Not bad, definitely worth the money.

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