measuring temperature

[andrew_JKTA]

Hi,

Firstly, please forgive me for any stupid questions as I am still a beginner at DAQ. I shall begin:

I am trying to measure and record temperatures ranging from 0 to 100 degrees celsius.

Should i use a DMM or DAQ board?

Also, is an RTD or thermocouple (or some sort of transducer) ALWAYS necessary?

I have heard that cold junction compensation is needed for thermocouple use. Are there DMMs or DAQ boards with built in cold junction compensation?

Thank you very much in advance,

Andrew

[JonBowers]

Hi Andrew,

You would want a DAQ board not a DMM to measure temperature. Have a look at the tutorials and application notes on our web page for more information:

http://zone.ni.com/devzone/cda/tut/p/id/2860
http://zone.ni.com/devzone/cda/tut/p/id/4237
http://zone.ni.com/devzone/cda/tut/p/id/4252

If you want more information on possible hardware then I would recomend phoning in and talking to our Internal Sales Engineers (01635 572410) who will be able to talk in more depth about your application.

Regards

Jon B
Applications Engineer
NI UK & Ireland