Digital Multimeters (DMMs) and Precision DC Sources

[Alan_K]

We will shortly be using NI PXI 4070 DMM's.

I'm trying to establish how much over a resistance range that a resistance value may still be read,

For instance, could I measure a 105 Ohm resistor on the 100 Ohm range, or a 1050 Ohm resistor on the 1k range?

I can't see this information published anywhere.... and yes, I do have reasons for doing this

Thanks

Alan

[Steve_B]

Hi Alan, 

The DMMs do have the ability to measure a signal that is a little above their range. There is a page in the DMM Help on Overrange that unfortunatly isn't displaying on the web so I have attached a screenshot of it. Depending on the Range and Function the DMM will usually allow measurements (with an Overrange warning) up to 105% of the range before returning NaN as results. 

[Alan_K · Accepted solution]

Perfect answer - just what I was looking for thanks!