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 -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
