Yes, never load a standard cell. It's standard practice to put a jumper across the terminals of a galvanometer for shipping, so the needle (or mirror) doesn't slam around.
Some years ago, I got a standard cell from eBay. The terminals had been shorted for shipping. Bill Hawkins -----Original Message----- From: Jürg Kögel Sent: Sunday, March 15, 2009 7:36 AM A good reference is the old Fluke publication "Calibration - Philosophy in Practice" by Steve Spang. (1975) Be very carefull with standard cells! Never load a cell. Use the cells only with high ohm null detectors. A loaded cell need a long time for regeneration (or come back never to the old value!) I think a good zener reference is a better practical solution for today. Juerg _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
