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Old 07-10-2002, 11:08 PM
Keith Lucy
Posts: n/a
Resistance of wires vs Thermistor

The thermistor used as the sensor has a resistance of 3000 ohms at 75 degrees (F) which, of cource, varies with temperature. The resistance of the wires used in routing would be on the order of 20 ohms. Even if you were to use double the original length and introduce 40 ohms total (an extra 40) you would introduce an error of 20 parts per 3000 or 0.67%. If the outside temperature were 75 degrees, and the sensor was perfect, your display would read 75.5 degrees (if it had decimal places).
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