I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?
Answer Posted / oliver
in postioner there are span and zero setting. with the help of span n zero we can adjust it.
if your valve is not fully close than use zero setting, and if it is not fully open than use span setting.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
How servomotor controls throttle valve of TURBINE?
Somebody tell me in what way i need to prepare for csio pgrpe(adv instrum eng)interview?what all the quest can i expect?
protection relay watchdog contact operation?
plz tell me clearly about PID.."when v have to change I value,D value,GAIN??
How to calibrate smoke Dectector
What happen if I install my pressure transmitter below the elevation of pipe in natural gas service?
What is 1:1 redundancy ?
Please asked me How calculate DCS controller memory.
sir ,iam in dem urgent need of HPCL Paper of Instrumentation Branch plz send me at your earliest convenience at ujjwal_sharma1983@yahoo.com
what are the documents(Construction point of view for a process plant) submitted by contactor initially entering in to new site for client?
can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).
what is compensation? temprature & pressure
How u measure the massflow in orifice flow measurement techniques
what is the procedure of O2 sensor(ABB) calibration?
Why mmwc unit is used?