Answer Posted / vinoth.s
Actuator can be calibrated. for example Pneumatic Actuators
are used in control valves. we have to calibrate the
Actuator between 3-15psi pressure range, for proper opening
and closure of the valve.
there is nothing saying whether field
devices alone can be calibrated. All process control as well
as sensing devices should be calibrated periodically.
| Is This Answer Correct ? | 4 Yes | 3 No |
Post New Answer View All Answers
what is SIL 1 2 3
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
what is moisture probe? What are there types? What is there working principle and how they works? guys this is one of technical question I had ask in interview. If you know its answer please let me know. The interviewers were more interested in microwave moisture probe, so if you find its any link please just forward me on my mail id.avinash1200@gmail.com Thanks in advance.
Why use ball valves on Gas pipelines instead of gate & or globe valves...means basic diffrence or use of these valves..how designers knows this type of valve with rating is required...
applications of plc in printing and packaging?
TEMPERATURE VARIATION FOR FREQUENTLY.
draw shematic diagram of c/v positioner(smart type)?
i have done DAE in Instrumentation and Process Control. i have applied for an apprentice training in chemical company after three day my interview will be conduct but i need more information about industrial process control and controller. my e mail is imran_dilsetu@yahoo.com please tell me interview question relative to instrumentation ?
What is zener diode? What is voltage regulator?
Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem
What is the PLC configuration in Cement industry?
what is difference between HOT permit and cold permit
i am having information technology branh ....... can i prepare for psu exam
Why 4-20 amps is being used in instruments? Why cant we use any other range instead of 4-20 amps? Why only 4 amps is taken as lower limit and why 20 amps is taken as the higher limit?
What is the basic difference between Modbus and CAN Open Protocols