Posted by Geo-TH,In on December 18, 2022 at 08:39:14 from (184.17.161.240):
I don't remember what I used at Crane Naval base as a standard voltage source to calibrate their voltmeters with. Been over 50 years ago. I think A mercury battery would make a good standard reliable voltage. The voltage during discharge remains practically constant at 1.35 volts. Every battery I've used doesn't have a constant voltage. The voltage changes with age. What would you consider a reliable voltage source to check a voltmeter's accuracy?
What do you use to make sure your voltmeters are accurate? Yes, I have too much time on my hands now it's cold outside. Please do your best to just answer my question and not rant about something else. Thank you.
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