Answer Posted / 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 |
Post New Answer View All Answers
In a gas over oil actuator, after the opening/closing of valve, how the gas is vented out? How does the hydraulic/gas circuit function?
please send me some question papers of HPCL aptitude test ?? please send it to bipinb.28@gmail.com ...
Why trim span ? How?
Hi Friends i need Electronics&Instrumentation Engg question papers for BARC written test by coming 20th May 2008 pls post ur use full info to kkumarei@gmail.com. Or for suggestions pls give one missed call to 9962122264
Why mmwc unit is used?
POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?
What materials are used in thermo wells?
can you send remote seal interface level transmitter calculation steps for oil water saperator.
I have got a call of IOCL interview for projects having 2yrs experience. What sort of questions should I expect in the interview?
Explain the working principle of lvdt?
model question paper of instrumentation for Jindal GET 2010.plz reply sudhanshukumar08@yahoo.com
diff between neutral ,ground,phase , earthing and shielding?
what deference between panel earth and systemearth
How to calibrate capillary type level transmitter
i need some objective type questions in instrumentation
