11-06-2013, 10:07 PM
Andy
Multiple times I came across this: an old resistor will not measure correctly on the multimeter.
The reason happened to be oxidation on the resistors' leads and solder: there were no connection. It took some pressing and rubbing the leads with the meter's probes' pointed ends to be able to see the resistance.
In your case, as Jerry has suggested, first use a known good resistor to make sure your meter is working although to me you only have to put the leads together and see 0.2 - 0.3 (or close ) Ohm resistance measured, that to me would validate the meter. In case you have no resistors available.
Now, I hope the question does not offend you, but: you do understand that you always measure resistance with the power OFF and NEVER EVER do it with the power ON. Right?
Multiple times I came across this: an old resistor will not measure correctly on the multimeter.
The reason happened to be oxidation on the resistors' leads and solder: there were no connection. It took some pressing and rubbing the leads with the meter's probes' pointed ends to be able to see the resistance.
In your case, as Jerry has suggested, first use a known good resistor to make sure your meter is working although to me you only have to put the leads together and see 0.2 - 0.3 (or close ) Ohm resistance measured, that to me would validate the meter. In case you have no resistors available.
Now, I hope the question does not offend you, but: you do understand that you always measure resistance with the power OFF and NEVER EVER do it with the power ON. Right?
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