Has the thinking changed on the grounding of shields on analog instrumentation cables?
A friend recently attended some company training on grounding & noise. Their expert demonstrated how it was best to ground the shield on both ends, specifically on 0-10VDC potentiometer circuits.
Apparently he used some sort of noise inducing device to demonstrate the effectiveness of grounding the shield on both ends. His company uses a lot of 0-10VDC stuff.
My experience was mainly with 4-20mA instrumentation & we always only grounded one end. Never had any problems. Of course 4-20mA circuits are known to be more tolerant if noise but still …….???
Any comments appreciated.
A friend recently attended some company training on grounding & noise. Their expert demonstrated how it was best to ground the shield on both ends, specifically on 0-10VDC potentiometer circuits.
Apparently he used some sort of noise inducing device to demonstrate the effectiveness of grounding the shield on both ends. His company uses a lot of 0-10VDC stuff.
My experience was mainly with 4-20mA instrumentation & we always only grounded one end. Never had any problems. Of course 4-20mA circuits are known to be more tolerant if noise but still …….???
Any comments appreciated.
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