Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / murugesan
First ensure both I/P and positioner air supply are as
it should be before starting up control valve
calibration/stroke checking activity. Then take any of loop
or multifunction calibrator based on the instrument
availability in your plant for Ex 707Ex, UPS-III-IS, UPS-
II, UPS-IS, DPI610 IS (connect series with 24 VDC supply),
UNOMAT and 725Ex
And select “mA source with 24V DC” option and connect 4-
20mA source to I/P converter and simulate appropriate mA to
check the stroke. Normally control valve stoke checking is
called as control valve calibration.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate
How it the difference between force balance system and dispalacement balance system?
how to calculate signal cable sizing? and multipair cable sizing??explain in brief?
how 3 out of 2 Logic/interlocks works? give brief explanation with help of diagram.
What materials are used in thermo wells?
the 3 most common transmitter protocol being in refinery or qatar gas and aramco.
while i check zero check for dp flow transmitter some fluctuating came (0 to 458 kg/h) what is the reason?
Definition of reverse and acting controllers:
how to calibrate corollaries (Mass flow meter)?
How to measure the dust in chimney(spm)?
Hi, Is there any smart plant instrumentation design training institute in Bangalore?
HI, can anybody give details about GAS TREATMENT PLANT CONSTRUCTION,as INSTRUMENTATION ENGINEER what are the responsibilites.what are the instruments mainly instrumentation engineer will deal with
How to Calibrate Flow Switch in field
How to Calibrate Vibration Probe (Axial, Redial) in field
Why do we have earthing cable in branch cable and shield in the same cable?
