How to test a relay with a multimeter is good or bad
Multimeter can not measure a relay is good or bad
Can only be judged, such as the coil should have a certain resistance, normally closed contact resistance is zero. Normally open contact resistance infinity.
With the ohm file test coil, there are numerical or pointer bias, indicating that the coil is good
Or ohm file test, only measured normally closed, there are numerical or pointer bias, indicating that normally closed is good,
Measured normally open, must be in the coil 2-side voltage, the relay closed, and then measured normally open, there are numerical or pointer bias, indicating that normally closed is good
