Hello,
When measuring 1000V DC on my 1281 I find the meter seems to drift alot downward starting for e.g 1000.0056 after 5min 1000.0011 and it keeps going down, how long would you guys generally wait for stability to take a reading?
Would anyone have the calibration procedure/ set up handy as it may explain clearer.
I took this from the 3458a manual where is says wait 5min before taking a reading at 100mV DC
DC voltage function gain test
DMM.
4 Set the range of the DMM to 100 mV. Wait five minutes for the DMM to
thermally stabilize.
KP