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Old 20th Jun 2018, 8:18 am   #72
The Philpott
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Join Date: Aug 2016
Location: Colchester, Essex, UK.
Posts: 4,081
Default Re: Meter Suggestions for Basic Alignment/Calibration

Good point about solid results only confirmed when chronologically between calibrations.

Laws of chance dictate that coincidences and statistical clusters will happen, so there is also the potential for confusion when two or more faults come into bloom at the same time (but i don't need to tell this to anyone on the aviation industry)

Like Jeremy i have a 3.5 digit DMM from the '80's, but mine has been unacceptably 'low' from day one and i somehow never got round to tweaking until this year. Wasted effort; the chip is such that you can have a good 2vDC range or good 20vDC range- but not both. It's a shame because the mouldings used for the exterior and the switch are very robust.

Dave
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