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PostPosted: Sun Mar 03, 2013 5:14 am 

Joined: Sun Mar 03, 2013 2:26 am
Posts: 1
Hi everybody.
I have a question and it is about how to know if a sensor (used in automation) are damaged?
what is the procedure for that?
the truth I have no idea about that.
I appreciate your answers.


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PostPosted: Sun Mar 03, 2013 7:03 pm 
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Joined: Thu Feb 16, 2006 6:25 pm
Posts: 2960
Location: Russia
Use 4-20 mA interface.
0 mA = wire break

Or use redundant pair of sensors.


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