The input and output resistances in Remote sense (4-wire)

[MaxiMuz1979]

Hello everyone !

I have searched the information about  input and output resistances in 4-wire mode. Not of results.

Where I can read about this concerning PXI-4140, 4132 ?

[Chase.E]

Have you installed NI DC Power in LabVIEW? The help documentation has more information to supplement the manuals and spec sheets we have listed online.

http://search.ni.com/nisearch/app/main/p/ap/tech/lang/en/pg/1/sn/ssnav:drv/fil/phwebntpmdm:123596/

[MaxiMuz1979]

Yes, I have seen this documentation. It named the NI DC Power Supplies and SMUs Help, but I did not find the information about the value of input (output) resistance

[Chase.E]

I do not see this specified anywhere so far.

Can you give more information about why you need that information so that we can determine if there are other resources available?

[MaxiMuz1979]

For example, I needed to measure with help PXI-4140 the small change of the voltage , and it value will be depends from outer resistance

[Chase.E]

I found this documentation on 4 wire measurements 

http://zone.ni.com/reference/en-XX/help/370384N-01/dmm/4-wire/

What is the resistance range we are operating in?

[MaxiMuz1979]

I do not need measure the resistance . I want to measure the small voltage with help SMU.

[Chase.E]

Can you expand upon what you mean by the outer resistance, and what you are measuring?