what is difference between positioner and position transmitter in control valve
Answer Posted / manomallik11
positioner sets the controlvalve stem % open or % close as per command and the position transmitter sends the feedback of % open or % close in control valve to the dcs
| Is This Answer Correct ? | 19 Yes | 0 No |
Post New Answer View All Answers
Explain types of valves?
dear friends, i have seen flow as the selection critriea in presure guage (bourdon tube) and i would like to know what is the relation between flow and performance of pressure guage other parameters i found in the data sheet are pressure max. 1ksc temperature max. - 50 deg c line size - 80NB operating range - 1ksc pr. guage range - 0-2 ksc thank u,
What is mean by analytical instrumentation?
what is zero and span ?
field bus transmitter calibration procedure tell me
what is the procedure to callibrate temp controller ,pressure controller,etc. suppose a temp controller showing error 1.5 degree centigrate how can i minimize it.
Displace type LT to be calibrated in workshop, wt. 40, dia- 60 mm, density- 0.8kg/cm3.
why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .
We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.
Regarding , there is an air cooler which control the fans(50% of AV FANS) by temperature in outlet , and the louver of Air cooler is controlled by HIC from control system , So if on Air cooler we will consider 2 individual I/P converter or positioner?
How to control flow variations in magnetic flow maters..... When i will provide proper earthing?
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
please tell me what is a light up procedure of Cfbc boiler and what it's axuillaries of cfbc boiler?
How to convert milliampares into flow??
If fire would be inside the plant which fire detector is to detected the fire.