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Original Fluke 87 Calibration...

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Smokey:
I just had another thought.  The AC voltages they want for cal...  are those peak to peak or +/- or rms? 

Vgkid:
Rms, after all it is a true rms meter. Though you could always convert between the two.

Smokey:
Good point.  RMS it is.  There is that interesting cal voltage of 3.513VAC 50Hz that you calibrate to 3.500 on the meter which the manual says has to do with the RMS linearity.  I guess don't go measuring low voltage low frequency AC with an original 87.

Vgkid:
For that you would have to check into the specs of the trms converter chip.

arcitech:

--- Quote from: Vgkid on March 12, 2015, 05:53:12 am ---Rms, after all it is a true rms meter. Though you could always convert between the two.

--- End quote ---

When it comes to the AC voltage they "want for cal" [from the calibrator output], I'm guessing the calibrators of that era (I've touched, and have knowledge of, exactly zero calibrators) only had P:P set points. But of course, yes, the AC voltage they "want for cal" to be output on the meter is RMS.

This confused me a smidge so I'm just plopping this in for others who stumble across it in their search quests to tweak pots with bolstered confidence, despite lack of gray beard/virginity/lingual protractor.



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