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How to Calibrate Penumatic Transmitter.LRV= -60 URV= -20.Can
u give me Answer.

Question Posted / sandeep patel

Answer Posted / sandeep patel

connect transmitter in bench setup, left LP side of transmitter open to atmosphere and apply -60 mmwc to HP side and check it s o/p is 4 mA or not and if it is not, then do zero trimming. then apply -20 mmwc to HP side and check o/p is 20 mA or not otherwise fo span trimming.

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