Multimeters
Thought I would test a greenlee clamp on multimeter that I bought at a rummage sale. The greenlee read 123 volts. The fluke I have is quite old and read 119 volts. The harbor freight cheapie I hav...
Forum Discussion
If you download the owner's manuals for your meter there is a section called "Specifications" and in it is gives the accuracy of the meter. +/- N% where N is the accuracy.
4 volts is less than 4% and what's more it is +/- less than 2% of the same number, USUALLY this is well within the acceptable error for a low cost meter.
Now I have used some serious. Lab calibrated, meters (in college) and for those the error is a tiny fraction of a percent.. But you calibrate before every use.
What is more important than accuracy is repeatability.. Given the same source voltage, will the meter read the same time and time again.,
4 volts is less than 4% and what's more it is +/- less than 2% of the same number, USUALLY this is well within the acceptable error for a low cost meter.
Now I have used some serious. Lab calibrated, meters (in college) and for those the error is a tiny fraction of a percent.. But you calibrate before every use.
What is more important than accuracy is repeatability.. Given the same source voltage, will the meter read the same time and time again.,
