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Author Question: When checking the resistance of the different parts of a relay, what resistance should you expect ... (Read 116 times)

DyllonKazuo

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on: Jul 26, 2018
When checking the resistance of the different parts of a relay, what resistance should you expect for the coil, normally open contacts, and normally closed contacts?
 
  What will be an ideal response?

Question 2

What is a proximity switch and how does it operate?
 
  What will be an ideal response?


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nital

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Reply #1 on: Jul 26, 2018
Answer to Question 1

With the coil de-energized, normally open = infinite resistance, normally closed = 0 resistance

Answer to Question 2

Proximity switches often limit motion and are often operated by the movement of a mechanical device. An example would be a switch that stops the motor

used for opening air inlet dampers once they have reached a full open position.


DyllonKazuo

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Reply #2 on: Jul 26, 2018
Thanks


nital

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Reply #3 on: Jul 26, 2018
Welcome :)


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