Originally Posted by bartamos
No, for continuity it means open loop, no connection between probe ends. In voltage testing it can mean over load/over limit if the range is set too low. I don't know if a multimeter, that can't read 1/10 ohm, will show a OL or a zero.

A multimeter that is attempting to display resistance that is lower than the meter's ability (for example 0.0005 ohms on a meter with only 4 digits) should display a zero. Same with a dead short.

A multimeter that is attempting to display resistance that is higher than the meter's ability should display 0.L An example would be a 4 digit meter whose highest displayed number was 3.999 and highest range was 39.99 meg ohms. If you measured a 50 meg ohm resister with such a meter, the meter would display 0.L just as it would if the two meter leads were not touching anything.


Originally Posted by bartamos
Best to test that gauge as I mentioned.
I agree

Originally Posted by bartamos
As far as 0 ohm reading, for what it's worth the internet says. "On a meter, zero ohms (Ω) can indicate a complete circuit or no short. Resistance is a measurement of how well electricity can flow through a circuit, and zero ohms indicates no resistance. A short circuit can also be indicated by a resistance of fewer than two ohms"

But according to Ohm's law ( I=E/R ) that would mean that any 12 volt circuit that was passing more than 6 amps (ie. a resistance of 2 ohms or less) should be considered a "short circuit".

Last edited by Rusty Rod; 07/20/2024 2:00 AM.

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