Measuring Relay Coil Resistance with Multimeter – Steps and Precautions

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#1 21679387 04 Apr 2018 11:01

DHANAM JAYAM DHANAM JAYAM

Anonymous

Post #1
21679387 04 Apr 2018 11:01

how to find relay coil resistance
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#2 21679388 09 Apr 2018 19:37

Max Maxfield Max Maxfield

Anonymous

Post #2
21679388 09 Apr 2018 19:37

Hi there -- are you really looking for the resistance of a coil (under static, DC conditions), or are you wanting to measure its inductance (under dynamic, changing conditions)?
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#3 21679389 10 Apr 2018 02:25

Elizabeth Simon Elizabeth Simon

Anonymous

Post #3
21679389 10 Apr 2018 02:25

I was trying to look up information on coil resistance (to get some
typical numbers for a column) and found that this information is
strangely lacking from the coil data sheets I found...
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#4 21679390 10 Apr 2018 03:05

Max Maxfield Max Maxfield

Anonymous

Post #4
21679390 10 Apr 2018 03:05

@elizabeth: "I was trying to look up information on coil resistance [...] and found that this information is
strangely lacking from the coil data sheets I found..."I think we need to know more about what Dhanam is trying to do.Dhanam, for what sort of coils are you trying to find the resistance? I would employ one technique for a solenoid or relay, but another for an analog meter (DO NOT use a multimeter to try to measure the resistance of an analog meter-- you can easily fry the coil).
#5 21679391 10 Apr 2018 04:28

Jack Grubbs Jack Grubbs

Anonymous

Post #5
21679391 10 Apr 2018 04:28

ElizabethHere is a data sheet for Omron G2R relays that has the inductance for both AC and DC coils.http://www.ia.omron.com/data_pdf/cat/g2r-_-s_%28s%29_ds_e_1_3_csm1049028.pdf?id=1731
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Measuring Relay Coil Resistance with Multimeter – Steps and Precautions

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