Audible continuity means the multimeter produces a tone that you can hear when a circuit is complete. Audible continuity testing is very handy since it allows you keep your eyes on your hands and the circuit you are testing. You can hear if continuity is present without looking at the meter.
Never try to test continuity with on a circuit that is energized. The meter may be damaged and you risk injury.
The basic procedure for a continuity test:
- Make sure the circuit is not energized.
- Set your multimeter to continuity test.
- Touch the two probes together. You should hear a tone which indicates the continuity test is working. If you don't hear a tone then the multimeter you must stop and resolve the issue. Likely problems: the meter is not set to continuity test, the meter's fuse is blown, or the multimeter is damaged.
- Place the two probes across the two conductor you are testing for continuity.
- If you hear a tone, continuity is present. If you don't hear a tone then the circuit is "open" and there is no continuity.
- Confirm there is no electrical connection (short) between the center conductor and shield on a piece of coax
- Confirm that there is an electrical connection between the center conductors on both ends of a length of coax
- Confirm that there is an electrical connection between the shield on one end to the other end on a length of coax
- Testing DC power cable assemblies.
- Testing fuses
- Test if a switch is working properly
- Test if the multimeter's own internal fuse has been blown
Good DX and 73, NJ2X
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Quick Guide To Common Multimeter Symbols and Abbreviations
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