Reply to "Anybody using a PC to monitor their smoker?"

Former Member

Temperature measurement is very tricky.

The theory itself is simple. The junction of two different types of metals produces a small amount of voltage which is directly related to temperature. Measure the voltage, multiply by a constant, and you know the temperature.

The problem is the signal is only a few mille-volts, and the relationship is non linear, so a particular constant is usually only good for a 30F range at best. Also, the temperature at the input module can effect your readings.

Typically a special ï¿½thermocoupleï¿½ module is used, which takes care of all of the calibration within a range of -30F to 1200F.

I'm not sure if you input module will work for this or not.

The manufacturer has a forum for the product, you may have better luck asking there:

http://www.appdigsupport.com/cgi-bin/ultimatebb.cgi?ubb=forum;f=7

7/10/053:29 PM

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