My main interest is as a 'sanity check'. I use DMMs for engineering purposes.
Shields up: IMO, there are very few applications, other than fundamental physics research, that really NEED 5,6,7, or 8+ digits. I would no more use a multi digit DVM to do what can be done with a differential voltmeter than use a carrier phase tracking GPS to measure for a living room carpet. Shields down. -John ================ > John wrote: > >>David mentioned this: >> * * * >>What do people think of the device? > > What are you trying to accomplish? As I posted previously: > >>Let's assume that it is still working exactly the same as it was >>when it was calibrated. The calibration values are recorded to >>4-1/2 digits. So the uncertainty is greater than the two LSDs of a >>3457A. Of course, it is almost certainly not working exactly the >>same as it was when it was calibrated, [so its last digit is going >>to be uncertain,] which is going to put at least the third LSD of a >>3457A in question. So it is good enough for a 3457A only if one is >>content with a 3-1/2 digit verification on a 6-1/2 digit instrument. > > You should be able to rely on it to verify instruments to 3-1/2 > digits. Beyond that, you would need something with a smaller uncertainty. > > Best regards, > > Charles > > > > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > > _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.