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Meter calibration

Chris Pearson
Mine is due, but CEF, who seem to be as good as anybody at making the process painless, are not doing them at the moment due to covid.


Any other recommendations?


(I might point out that I have a Megger Checkbox for my Megger MFT as well as a nominated workshop socket for more frequent checking of Zs and RCD trip times. Variation from test to test is perfectly acceptable.)
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  • Former Community Member
    0 Former Community Member
    The biggest issue I've found with "in branch" calibration is that the guy is starting off his calibration set up at a socket-outlet that has a Zs of typically 0.8 Ohms so, by the time the calibration kit adds another 0.2 Ohms to the EFLI tester undergoing calibration, the lowest point on your certificate is 1 Ohm. Not very useful when I suspect most of your site readings are under 1 Ohm...............


    I've used RS in the past and was able to specify the points I wanted my kit calibrated at.


    Regards


    BOD
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  • Former Community Member
    0 Former Community Member
    The biggest issue I've found with "in branch" calibration is that the guy is starting off his calibration set up at a socket-outlet that has a Zs of typically 0.8 Ohms so, by the time the calibration kit adds another 0.2 Ohms to the EFLI tester undergoing calibration, the lowest point on your certificate is 1 Ohm. Not very useful when I suspect most of your site readings are under 1 Ohm...............


    I've used RS in the past and was able to specify the points I wanted my kit calibrated at.


    Regards


    BOD
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