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HOW TO CALIBRATE A DRUM LEVEL TRANSMITTER

Answers were Sorted based on User's Feedback



HOW TO CALIBRATE A DRUM LEVEL TRANSMITTER..

Answer / karthigai selvan

in the field have to isolate first hp and lp side isolate
valves
fill the water on both side of both impulse tubes same time
both tubes should be in ambient(open to atmosphere) check
zero if not do zero trim then line up


thanks

Is This Answer Correct ?    9 Yes 4 No

HOW TO CALIBRATE A DRUM LEVEL TRANSMITTER..

Answer / sahnis

First step is to isolate the trasmitter chamber from tank.
Close HP first and then LP. After that drain the Chamber by
opening drain valve on the bottom of the chamber. Then
connect a trasparent hose and keep it parallel to the
chamber to know the level inside the Transmitter chamber.
Then start filling the Fluid untill the low level. When the
low level reached, the zero adjustment( 4mA output from tx)
can be done by turning the zero adjustment screw. Then fill
the fluid upto highest level and turn the span to get 20mA.
Calibration is done and the instrument is now ready to be on
loop.

Is This Answer Correct ?    2 Yes 3 No

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