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Member
bicyclerepairman
Posts: 6
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convert j thermocouple to k

Hi all,

 

I wrote a Labview program to take temperature measurements using a NI921 plugged into a cDAQ9171. It all worked ok and I did a load of testing. When I came to review the data, I realized I'd incorrectly set some of the channels to j type thermocouples, when I'm actually using k type. Is there a way to convert the temperature data I've captured to valid readings? I'm guessing this will require knowing how the system converted the mV input from the thermocouple to degC for j types, reversing this process mathematically to re-gain the raw mV readings, then knowing how the system converts mV to degC for k types, and applying this.

 

Can anyone help?

 

Thanks!

 

Andy.

 

Member
ongeelim
Posts: 49
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Re: convert j thermocouple to k

[ Edited ]

Hi Andy,

 

Are you referring to NI-9213 or 9211?

 

Whichever way it is, you can refer to this link:

http://forums.ni.com/t5/LabVIEW/Can-I-convert-j-type-thermocouple-data-to-k-type/td-p/1597286

 

Hope this helps.

 

-Ee Lim-



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Member
bicyclerepairman
Posts: 6
0 Kudos

Re: convert j thermocouple to k

Thanks! I did try searching for the answer before posting, but my search-fu must have been weak.