To whom it may concern:
I would like to post this question here so that it is easy to understand.
I would like to ask how 6250 measure the voltage using AI+ and AIGND. One of your collegue told me there is no current flowing to Rin if AIGND = Vs(0). I am trying to measure 100ohm resistor using AI+ and AIGND. I used DMM to measure from the top the resistor to AI+, the current was 0A and measure the current from the bottom of the resistor to AIGND. The current is 0A.
In fact, how 6250 measure voltage . If you put DMM instead of 6250, there is current going through DMM and you can show voltage. How about 6250. Could you please tell me?
I have attached a picture to let you understand what I mean. and where I got the information.
Here is the link
