USB TC-01 Cold Junction Value

[Curt_C]

Hi,

How can I determine the built in cold junction compensation of a USB TC-01 temperature module using C#?

and then enter that value in 

myTask.AIChannels.CreateThermocoupleChannel("Dev0/ai0", "",0, 200, AIThermocoupleType.J, AITemperatureUnits.DegreesC, cjc value);

Thanks

Curt

[ZYOng]

You don't specify a value but a cjc channel instead.

myTask.AIChannels.CreateThermocoupleChannel("Dev0/ai0", "",0, 200, AIThermocoupleType.J, AITemperatureUnits.DegreesC, AIThermocoupleCjcSource.BuiltIn);

Reference:

• Taking Measurements in NI LabVIEW with Your NI USB-TC01
• C:\Users\Public\Documents\National Instruments\NI-DAQ\Documentation\NINETDAQmxFx40Ref.chm

[mane___avagyan]

Hi  Curt_C ,

According to the documentation (USB-TC01 Specifications - NI), your USB-TC01 module includes an integrated CJC sensor. You can specify the CJC value either by using the method described in the previous response or by manually entering a constant value if it is already known.