Answer Posted / rajkumar.diice
The signal type depends on
the location of control valve!
For explosive hazard area the
signal be pneumatic and be 3
to 15psi! The converters be
mounted in somewhat
distanted area! For all control
valves the signal be 4to 20mA
over 1to 5 volts from a
control room! For inbuild
current to pressure
converters control valves the
signal be 4to20mA over 1to
5volts dc
| Is This Answer Correct ? | 2 Yes | 3 No |
Post New Answer View All Answers
I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
What is standard procedure of manual mapping in Radar type level transmitter?
How to Calibrate Vortex Flow transmitter in field
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?
What is Alpha & Beta fctors related to Orifice Plate & its relation with flow?
Somebody tell me in what way i need to prepare for csio pgrpe(adv instrum eng)interview?what all the quest can i expect?
how many maximum enter 2mm Dia solid cylindrical pipe into 8mm Dia hollow cylindrical pipe. give answer with calculation.
why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?
I faced several time siemens ps2 positioner automatically getting Chang in it's set point direction after auto calibration So is there any causes biside this or any permissives ?
how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i
Full form of KKS when use DCS.
what is the calibration procedure for magnetic flow meter @ onsite
how the arrangement of equipments done in control room
Manipulation of dead wt. tester double piston type.
