Thermocouple measurment using NI 9219

[562]

I have a NI 9219 and an omega j type thermocouple,

When i connect the thermocouple to NI9219 terminal 4 and 6 ( positive and negative terminals) and open up Signal express I don't see the voltage change! is there something else that i need to do before i can see the measurments?

[McMurray]

I'm using the USB9211, and had to get the max and min voltage set right before it would display.  It had to be between 8.0e-3 and -8.0e-3 for us to get a good reading.  Not sure if this will help, but if so, great!

Matt

[chrisger]

Hi there

you have to use terminals 4 and 5 for thermocouples. See page 11 on the user manual: http://www.ni.com/pdf/manuals/372407a.pdf

[Cory_K]

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chrisger wrote:

you have to use terminals 4 and 5 for thermocouples. See page 11 on the user manual: http://www.ni.com/pdf/manuals/372407a.pdf

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That is correct. In my experience (the little there is), thermocouples are almost always in adjacent terminals 

Message Edited by Cory K on 01-02-2009 10:41 AM