[volt-nuts] DMM calibration

[Joseph Gray]

I just got the following quote for getting my HP 3478A calibrated.

35.00 for ISO 9001 no data
87.50 for Z540 with data and uncertainties
275.00 for 17025 with data, uncertainties and logo calibration.

I still didn't get any explaination as to exactly what the lab does for
each of these price points. When I asked about the "Level 4" listed next to
the meter, I was told that it is the difficulty level. Still not telling me
much. I have read the procedure in the HP service manual and it is very
easy. You set some volt, amp, ohm values on the standard, then push some
buttons on the meter.

I understand about getting data or not, it is the other aspects that I
don't understand. What is Z540, 17025 and "logo calibration"?


Joe Gray
W5JG