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Old 12-21-2005, 11:55 AM
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ralph_dog ralph_dog is offline
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Real Name: Ralph
Location: Canton MA
Hybrids: 2005 Honda Civic Hybrid
Posts: 585
Default Re: External Temperature Gauge

Quote:
Originally Posted by timwgordon@gmail.com
I have noticed, particularly in the winter, that my temperature gauge is about 5 degrees too warm. I do understand that road surfaces can have an impact on the temperature reported - but even on a non heated road it is too high. I read somewhere that you can calibrate the thermometer - does anyone know how to do this?

Tim
There are a number of ways to calibrate a digital thermometer. You will have to find out where the sensor is located and what type of sensor it is, (thermocouple or electronic). It may be somewhere near the engine compartment where it could be getting warmed slightly by the engine. Or, it could be mounted high up on the roof molding somewhere.

The best way to calibrate a digital thermometer is with an "ice point" cell. Immerse the sensor in some ice water then find out where the adjustment/calibration potentiometer is and adjust accordingly to 32F or 0C. I wouldn't mess with the high end, 212F, 100C as you could get burned.

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