DAQmx_Val_Custom for RTDs

[Dale Elston]

Using a 1581 for excitation and a 1102 to scan through 32 channels, reading standard Platinum RTDs is no problem. However, the customer handed me a copper 10 ohm @ 25 ° C RTD to read. I figure that I need the Callendar-Van-Dusen A and B co-efficients, but do I also need the resistance at 0 ° C for the last parameter in DAQmxCreateAIRTDChan?

using Visual C++ 6.0.

Thanks

[Bueller]

The value of the resistence is needed.

If you are using windows XP , a good example to look at can be found at

:\Documents and Settings\All Users\Documents\National Instruments\NI-DAQ\Examples\MStudioVC2005\Analog In\Measure Temperature\ConAcqRTDSmps_IntClk_SCXI1102And1581

Regards,

Faris A