[volt-nuts] Solartron 7081 Calibration Problem
steve-krull at cox.net
Mon Sep 3 00:14:36 UTC 2012
What was the exact value of the DC reference voltage you were applying?
I wonder if the 7081 has a limit built in so that if you're not using a
reference that is pretty close to 10 vdc it will generate the error
you're seeing? Just something to try - adjust your 10 vdc reference
source a couple of millivolts each way and see what you get.
On 9/2/2012 5:57 PM, J. L. Trantham wrote:
> I went through the calibration process today, using the manual and my 'new'
> Fluke 5100B. I made a 'short circuit plug' by connecting 'HI' to 'LO' only.
> All was OK until the last step of 'CALIBRATE REFERENCE'. I kept getting
> 'FACTOR OUT OF RANGE'. What am I missing?
> However, after checking it against my other, Ametek calibrated, 7081, the
> readings on the various scales are very close, about 10 uV at 10 VDC, for
> instance, and 2 mV at 10 VAC using a 1 kHz signal and about 36 ohms at 1
> MegOhm. This is a significant improvement from where it started.
> Thanks for any help.
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