Questions around calibration for USB-6259

[JM_O]

Hi,

I would like to do current measurements  with the NI USB-6289 and NI USB-6259. I have several different boards to measure with low resistance resistors on them.

In my understanding there are three calibration processes:

1) One done by NI every two year
2) The automated self calibration process done in the measurement and automation explorer.
3) And the setup calibration done in the DAQ assistant where you must specify the range used and calibrate the setup at several operating points.

Questions:

• Can we record the current calibration 3) into a file and reload it afterward by selecting the file with labview? (The goal is to have one calibration file per device I want to measure)
• Do we/can we calibrate 3) for every range?
• I am not clear how to link the product specification accuracy with the DAQ assistant calibration process: For instance what is the current drain accuracy when using the 0.1V -01.V range and using a 1% 0.1ohm resistor before and after DAQ assistant calibration? (same question for both NI USB-6289 and NI USB-6259).

Thanks in advance for your help
Best regards,
Jean-Marc

[Richard_KEROMEN]

Hello,

I'm not an expert in calibration, but in regard to what you are trying to do I think you should take a look at this soft : Claibration Executive which allows you to manage calibration files.

Regards

[JM_O]

Thanks
I think I found out how to program it myself with labview if it's necessary.
Regarding the measurment accuracy NI will provide me a test card and I will measure it to make sure it fulfills my accuracy requirements.

Best regards,
Jean-Marc