Temperature error using the N.I. 9213 thermocouple module with type T thermocouple

[mlangiano]

Hi all,

Am new to using N.I. CompactRIO.  We are using the N.I. 9213 Thermocouple module, and are getting an error in temperature readings of about 6 degrees Celsius.  These are brand new modules, and we have 3 complete CompactRIO setups, all getting the same +6 degree error in temperature.

Any ideas?

Thanks in advance.

[charris]

Hi mlangiano!

Since you're getting a temperature reading of some kind, I'm going to start with the assumption that you have your grounding and wiring set up correctly.

In order to get a clearer idea of your code setup, would you be willing to post a screen shot of your code?

Also, do you get the same behavior using an example program? (you can search for "9213" in the example finder)

[gintree]

It looks like the original poster never returned, but I'm having the same problem.  My thermocouple reading is about 10 degrees F high.  I tried the 9213 example problem and got the same result.  I changed the module configuration to my thermocouple type.  I'm using an ungrounded type T thermocouple with fiberglass insulation and stainless steel overbraid.

Any ideas??

Thanks,

gintree

[charris]

Gintree:

If you throw me a little more info, I'll see what I can dig up.

How is the thermocouple wired up to the module? Do you get the same result on every channel?

What version of NI-RIO are you running?

Based on your initial post, it sounds like you've got it set up correctly, but I'd like to cross the 'i's and dot the 't's.

Thanks!