Which CJC Sensor Is My Thermocouple Channel Associated With?

Updated Jan 10, 2019

Reported In

Hardware

  • NI-9214

Software

  • LabVIEW

Driver

  • NI-DAQmx

Issue Details

On some thermocouple measurement modules like the NI-9214, there are multiple CJC sensors to improve the accuracy of measurements.  However, it's not always clear which CJC sensor is used by default by any given thermocouple channel measurement in LabVIEW.

Solution

You can read the current CJC channel being used for a given thermocouple channel with a property node referencing the DAQmx property Analog Input >> Temperature >> Thermocouple >> CJC Channel. 

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