What is an analog input-output
Answer Posted / abdul rehman
Ai means analog input which goes to dcs from control valve or pt or lt and any instrument which opperate to analog signal 4 to 20 ma.
Ao means analog output which goes to valve from dcs madules in 4 to 20 ma.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
how many type of plug are used in pneumatic control valve,name them.
what is the vital subject for scoring bhel exam&what is the question pattern
What is standard of DCS panel design?and what is step of DCS panel design?wiring and type of connector(screw or DB connector)
TEMPERATURE VARIATION FOR FREQUENTLY.
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...
How will you test a transistor with a multimeter?
Make a ladder diagram on LSL valve will close, on PSL valve will open and start the motor
what is isloted barrier how it works and what are the main purpose.how it make safe area.
What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.
which type of zones used for boiler? & why ?
Who to difference between analog in & analog out in dcs?
Decibel.
What should be the main consideration while starting the Rotating compressor when we dont know the cut in and the cut off pressure setting of the pressure switch
How do bending tubing provide better measurement than using tubing fittings such as elbows?
What is the differerence between hysterisis and linearity.