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I need to make differential measurements with my SCC-A10 on my SC-2345, but the MAX is suppose to be in NRSE mode. So what should I do?

I need to make differential measurements with my SCC-A10 on my SC-2345, but the MAX is suppose to be in NRSE mode. So what should I do?

I need to make differential measurements with my SCC-A10 on my SC-2345, but the MAX is suppose to be in NRSE mode. I believe the SC-2345 is suppose to bet set to NRSE mode? So what are the steps I need to go through to make differential measurements with the SCC-A10 on my SC-2345?
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Re: I need to make differential measurements with my SCC-A10 on my SC-2345, but the MAX is suppose to be in NRSE mode. So what should I do?

Shaun,

The DAQ device should be set to NRSE mode when using the SC-2345. Version 2.1 of Measurement and Automation Explorer (MAX), which is included with NI-DAQ 6.9, will automatically set the card to NRSE mode when an SC-2345 is selected as the signal accessory.

Unfortunately, it is not possible to use the differential input mode with the SC-2345 and SCC family. Please refer to the SCC-AI User Manual, page 10, the section titled, "Connecting the Input Signals," for more information. You will find that the inputs are designed in a floating (nonreferenced) single-ended configuration.

SCC-AI Series Isolated Analog Input Modules User Guide
http://digital.ni.com/manuals.nsf/websearch/E270A0A15C11C3DB86256AEF006D5F02?OpenDocument

If you would like t
o perform differential measurements, perhaps you would benefit from an SCXI system.

Which DAQ System Is Right for You?
http://volt.ni.com/niwc/common.jsp?page=daq_10x_sig_cond_right&node=1603

Regards,
Justin Britten

Applications Engineer
National Instruments
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