Answer / nagnath199@gmail.com

Give hp side dp of span range and press span give dp 0 press zero

Answer / vikash tiwari

First i want to know that which type level transmitter (flote type ,radar type ,dp type, etc.) Than calibrate.
Dp type - gave air pressure on hp side and open lp side (no. Air) and check ma by multi meter and adjust spane and zero

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