mcmlcccvrs
New member
Before I get ahead of myself installing a water temp gauge in my bike, I thought it prudent to test the resistance of the sending unit for the gauge to be sure it is okay as it is a used one. Is there a nominal resistance that these should display, for instance, at room temperature? Other than a partial BMW part number stamped on one of the hex sides, there is also the number 94 on another side. Is this an ohms measurement or something else unrelated?
As resistance is the inverse of temperature, should measured resistance truly go to zero at boiling point as the signal is being pulled to ground?
Just updating now that I've found my alligator clips. At room temp resistance stabilizes at about 796K ohms. After placing sensor into water being heated on the stove, it plummets to 1.5K-1.2K ohms.
As resistance is the inverse of temperature, should measured resistance truly go to zero at boiling point as the signal is being pulled to ground?
Just updating now that I've found my alligator clips. At room temp resistance stabilizes at about 796K ohms. After placing sensor into water being heated on the stove, it plummets to 1.5K-1.2K ohms.
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