On 03/11/2017 11:51 AM, kc9ieq via volt-nuts wrote: > In preparation of (hopefully!) Getting that fluke 332A running and > sticker shock of what the 732A and similar references go for, I > wonder about normal, every day alkaline or lithium batteries and > their short term stability. Â Here's the half baked idea. Â A fresh, > standard 1.5V, or 3V lithium, alkaline, or silver oxide button cell > battery, or even an AA sized cell, measured by someone/some place > with a known accurate precision meter. Â Invisioning 6 or so decimal > places. Â Could that cell then be shipped, and used as a reference in > another altitude? Â I haven't spent a ton of time looking, but > haven't yet found anything on the web about stability of these types > of batteries. Regards,
A silver oxide battery might give you a decimal point of long term stability. For just a few dollars more you can get a real reference http://www.voltagestandard.com/ I've had a VREF5-01 for 5 or 6 years now. It continues to read 5.0000 on my 5.5 digit Fluke. I use it to check my portable DVMs. John -- John DeArmond Tellico Plains, Occupied TN http://www.tnduction.com <-- THE source for induction heaters http://www.neon-john.com <-- email from here http://www.johndearmond.com <-- Best damned Blog on the net PGP key: wwwkeys.pgp.net: BCB68D77 _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
