Author Topic: relay cleaning  (Read 1915 times)

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Offline spdfTopic starter

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relay cleaning
« on: July 16, 2017, 06:23:39 pm »
Hi,

is there any way to clean this relay?


 

Offline Jeroen3

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Re: relay cleaning
« Reply #1 on: July 16, 2017, 06:49:27 pm »
Those are sealed relays. Opening them is destructive. So no.
 
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Offline EPTech

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Re: relay cleaning
« Reply #2 on: July 17, 2017, 05:38:45 pm »
There is an unorthodox way of 'cleaning' them. You could try sparking them. Have the relay switch repetitively, on a function generator for instance and have it switch an inductive load, like another relay, depending on the contact current capacity. Let it spark for a an hour at 1s interval.

This is more of a last resort, really. Buy new ones is my advice.

It looks like they are general purpose relays. They are often mechanically sealed but not hermetically. Real signal relays are hermetically sealed or even filled with an inert gas. You can tell by looking at the bottom. Hermetically sealed signal relays will look potted.

Happy sparking.
Kind greetings,

Pascal.
 

Offline LabSpokane

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Re: relay cleaning
« Reply #3 on: July 17, 2017, 10:27:26 pm »
Don't clean/fix unless you absolutely cannot replace it. Once the contacts get worn, all fixes are temporary at best.
 

Offline spdfTopic starter

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Re: relay cleaning
« Reply #4 on: July 18, 2017, 09:51:13 am »
Bought a new one! :) Thanks for help!
 


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