Answer / rajkumar

Shield wire is to eliminate the noise pickup in the signal
wire due to magnetic interference from the near by
source
Panel or JB side shield to be earthed but Instrument side
no need to do earth (cut the shield and tape).

I am a instrument technician. recently i attend interview and face one of question for DP transmitter ,the client asking about the calibration of DP transmitter ,am answer the calibration procedure, they will ask one more question. why open LP side in atmosphere? i did not answer that question. so please help me and explain the particular question. Dear firends waiting for your valuable replay

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