Does NI have DAQ card which could take 4-20mA analog signal?

[Ya-hoo]

I have pressure signal and positoin signal are 4-20mA. Does any DAQ card could take this kind of signal? Do I have to use signal conditioning module?

Thx.

[BeckyB]

Hello -

This KnowledgeBase discusses measuring current using an NI DAQ board.

An NI Sales Engineer can help you choose the right DAQ card for your specific application for use with the SCXI Resistor Kit discussed in the KnowledgeBase. Please contact your local sales office at this toll-free number: (888) 280-7645.

Good luck with your project. Have a great day!

Becky B.
Applications Engineer
National Instruments

[dsb@NI]

Is the 4-20 mA the result of IEPE excitation? If so, you should consider a DAQ device with AC coupling. Since you are measuring pressure and position, and depending on the sample rates and accuracy your application requires, a DSA device might be appropriate.