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Answer Posted / faiyaz
Foundation field bus is communication protocol which is used to communicate between Process instrument and DCS in a single pair cable using a more instrument
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what is interlock system and why we use of this?
Why mmwc unit is used?
please tel me the calibration of pneumatic controler.
we want to control pump in let pressure and tank (for exp) our inlet line if water cam and pump will on and when our tank will full pump will off also if our inlet pressure low pump will off even tank not full.this pump i want to uses on our water supply line.
Q1: Consider part of a control loop, which excludes the transmitter, consisting of a process, a controller and a control valve which may be represented by two dead times of 0.5 min each and three exponential lags of 0.8 min., 1.0 min. and 1.5 min. respectively. We wish to express this system as an overall first order plus dead time (FOPLD) model ie gain, time constant and process dead time. (We will see later that this is often done, to simplify controller tuning). For this exercise, gain is considered to be 1.0. (A) If the transmitter is a flow transmitter whose behaviour can be described by a dead time of 0.2 min. and an exponential lag of 0.5 min. in terms of the overall dead time and overall first order lag how can the system behaviour be approximated ? Overall dead time = Overall time constant = (B) If the transmitter is a temperature transmitter with a temperature sensor in a protecting well whose behaviour can be described by a dead time of 0.7 min. and an exponential lag of 15 min. how can the overall system behaviour be approximated now? Overall dead time = Overall time constant =
Pl send the model question paper of mahagenco account officer post
How to calibrate radar type level transmitter for interface level? Total liquid(liq.1 and liq.2), level both the liq individually? For. Both the liquid levels how the signal will go from transmitter to dcs? How to calibrate. Single radar 9:26:55 AM for 2 different liquids in a tank?
i am from instrument branch i want paper patern of mahagenco . any pevious years paper regarding my branch send me please . please.....
the 3 most common transmitter protocol being in refinery or qatar gas and aramco.
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...
Explain the difference between mmwc and mmwg?
i am having information technology branh ....... can i prepare for psu exam
How can test or measure the probe and extension cable to identify if the problem at the probe or cable or at the driver it self? (pleast notify the measuring method)
can we replace a slot sensor (inductive type) with limit switch (potenial free contact / no-nc type).
what are the diff. in servo and regulatory control?
