Recalibrating visi therm stealth

[tcarswell]

Someone mentioned they are easy to recalibrate. I own 6 of these heaters from 25 watts to 250 I am curious how to recalibrate them if I need to do so.

Thanks all,
Tcarswell

 

[12 Volt Man]

calibration basically means using a standard (normal thermometer) and "tuning" the device to read that temperature.

to calibrate, get an accurate thermometer, use that as your baseline, and grandually increase/decrease your dial setting on your heater to the desired stable temperature.

quite often, you will find that although your heater dial may be set to 78, your tank might actually be 81 or vice versa.

so turn the dial up or down accordingly..

thats basically all there is to it.

 

[tcarswell]

oh , I feel stupid . I do this often with my lab grade thermometer.

Thanks 12 volt man.