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5720 FSC in the 22mV range.

Interesting situation. I call the 5720 FSC with a 7mV @ 1kHz output value and Met/Cal, it seems, sets the 5720's output to 7 volts and tells me to use a voltage divider. Discussions about it being more accurate aside, is there any way to force the 5720 to actually output 7mV @ 1kHz without Met/Cal ignoring me and outputting 1000x the nominal? NOTES: - It only does that in the 22mV range. It is not unique to 7mV, it will do it to any nominal value within this range. - It is possible to manually type in 7mV @ 1kHz to the 5720's keyboard and it will output as it's told. - I do get a compiling error at these low nominals that they are not specified in the 5720 accuracy file. Could this be the cause? - What voltage divider is this software supposing that I should have?

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bill reynolds

To generate 7mV without divider

5720  7mV 1kH O S 2W

the O in the above command will override the use of the 1000:1 divider. The divider is Fluke 7405A-4207.

 

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Dexter

Oh, that's simple. Thanks.
 

And I just opened my manual and the first page it falls on has a section titled "Use of Divider Override in AC Voltage Mode." Sorry for the RTFM question.

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Michael J.

Someone sent in a support ticket about this same issue the other day and we spent about an hour thinking it was a bug, so don't feel bad, Dexter.

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