how to test electrical relays?
06-29-04, 07:35 PM
#4
Rotary Enthusiast
Ummm O.K.
If it's a 12 V relay, you'll need a 12V source (car battery, or charger). Energize the coil (if it's a mechanical relay, you'll hear it click), check the pole(s) for continuity with a meter.
If it's a 12 V relay, you'll need a 12V source (car battery, or charger). Energize the coil (if it's a mechanical relay, you'll hear it click), check the pole(s) for continuity with a meter.
06-29-04, 08:03 PM
#6
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Clicking isn't enough.
I test one that clicked but the clicker had bad contacts in it. Obviously, electricity was going no where.
I test one that clicked but the clicker had bad contacts in it. Obviously, electricity was going no where.
06-29-04, 08:24 PM
#7
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Originally posted by Flybye
Clicking isn't enough.
I test one that clicked but the clicker had bad contacts in it. Obviously, electricity was going no where.
Clicking isn't enough.
I test one that clicked but the clicker had bad contacts in it. Obviously, electricity was going no where.
hmmmmm, thanks for the tip
. i just thought as long as you hear that click, which is the contacts inside that it was good
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06-29-04, 08:57 PM
#9
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I bought a 12 V battery from radioshack to test my water injection kit harnesses. For about 28 bucks you can get a rechargeable lead acid 12 V battery. They are very small and convenient.
you can hook your relay up to that, apply power to the 30/51 and 86 source, hook your ground to 85 (maybe connected to a switch and then your devices to 87/87A. It works great.
Just make sure your 30/51 and 87/87A are fused.
you can hook your relay up to that, apply power to the 30/51 and 86 source, hook your ground to 85 (maybe connected to a switch and then your devices to 87/87A. It works great.
Just make sure your 30/51 and 87/87A are fused.
06-29-04, 09:06 PM
#10
It's never fast enough...
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Originally posted by RedRx00
hmmmmm, thanks for the tip . i just thought as long as you hear that click, which is the contacts inside that it was good
hmmmmm, thanks for the tip
. i just thought as long as you hear that click, which is the contacts inside that it was good
Damn it I shouldn't have thrown my old one away. I would have taken a pic of it.
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