[volt-nuts] How accurate is a fluke after 9 years

[Electronics and Books]

My Fluke 5700A calibrator was calibrated today after 9 years. It displays how much it deviated from the last calibration. For the both voltage references i got 0.0 ppm and for the internal 10k resistor -1.7 ppm.
Only the amplifier for the 11-22 volt range drifted 1700 ppm for it depends on a voltage divider composed of two normal metalfilm resistors. These will be replaced by 2 vishay 0.01% resistors which are hopefully more stable.

Regards

Frans



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