RTD or thermocouple?

[Andrew Theurer]

OK, I found the product.  http://www.egtsensor.com/TechnicalData.html

Its sensor is "electronically enhanced" to offer faster response time.  To 
me, that sounds like their datalogger is "predicting" what the temp should be 
based on, maybe by its rate in temp change?  Anyway, the sensor does not 
appear to be more accurate than a thermocouple.  I have a hard time believing 
their black box can actually improve response time and maintain accuracy.  
Any thoughts?

-Andrew


On Tuesday 09 October 2001 08:36 pm, you wrote:
> At 5:10 PM 10/9/01, Andrew Theurer wrote:
> >I'm at the point where I need to get a sensor to measure exhaust gas
> > temps, and I am seeking some advice.  I can get a thermocouple, but I am
> > concerned that it will not report temps quickly enough.  I have heard
> > that a RTD has been used, but I have not found a source for one.  Does
> > anyone know of a source where I can get an RTD with a "black box" to
> > output 0-5v based on temps?  Or should I just stick with a thermocouple?
> >
> >Thanks,
> >
> >Andrew
>
> I'm not aware of an RTD that will stand up to the temperatures involved. A
> type K t-couple is the usual thing for the temps involved. the lower the
> total mass of the t-couple and its sheath, the more quickly it will
> respond.
>
> Greg
>
>
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