Break in coil

[Santiago]

hi everyone, can someone please tell me whether it is possible to check where the break is in a watch coil using a multimeter. I have seen the Arsi video, but only have a conventional meter. Would you set it to ohms, volts or continuity foe example and where would you place the probes?

would be very grateful for any help/advice

 

best, keith

[clockboy]

If you know it is a faulty coil then just change it. Repair is not possible.

[Santiago]

Thanks, but how do I check it is faulty?

[Tmuir]

Set your meter to ohms, you can use an analogue meter, or a digital meter to check the coil, but in general an analogue meter is more versatile for watch repair.

Remove the coil and look for the two tracks on the small pcb attached to the coil that have the two ends of the wire attached to.

Measure on ohms.

The resistance will vary between different models of coils, but roughly 1k to 5K ohms and it is good, higher than that, or direct short and its not ok.

If faulty it cant be repaired and will need to be replaced, be careful removing it as a slip with a screwdriver into the coil will likely damage it.

Edited January 31, 2017 by Tmuir

[Santiago]

Nice one! Many thanks

[jdm]

Note that to accurately measure coil resistance, a low voltage ohm meter would be needed. However in most cases that is not needed and just verifying the coil is not interrupted or shorted enough.