Answer / pratod

It can be done by following the steps below.
1. Take the control loop in manual mode.
2. Block the temperature control valve position manually to
the desired value.
3. Now check the loop as per the normal loop checking
procedure i.e. feed 4-20ma and observe the output value on
the DCS.

Answer / senthil.doosan@yahoo.com

simple..
there is no hot loop check or cold loop check..
as u mentioned u have a temp transmitter and control valve
so,u have 2-AI and 1-AO
-connect the simulator by removing the DCS cable of the temp
transmitter,then give 4 - 20 mA and check with DCS reading
-give 0 to 100% command from the DCS for AO to operate the
control valve.then check the feedback in the DCS(AI)

conclusion,ur loop is ok...

what is isloted barrier how it works and what are the main purpose.how it make safe area.

0 Answers  

---

What are the type of bonnets in the control valves?

0 Answers   CCIE,

---

pressure gauge measure static pressure or dynamic pressure?

3 Answers  

---

Can we used Condensate Pot on flow transmitter which is using on liquid having sluge and DP transmitter is in pit and below the process line,Can we used Condensate pot for accamulate the Sluge?

1 Answers  

---

What is the reason for not giving very High Proportional Gain Kp in PID Controller?

2 Answers   ABB,

---

Why trim span ? How?

0 Answers  

---

what is PM/CM/RCM?

2 Answers   Emco,

---

How we can re-range the DP transmitter, range is -0.5 to 2.0bara. new range is -0.5 to 5 bar

2 Answers   Rosemount,

---

What is mean by AC voltage and DC voltage

2 Answers  

---

What is the out put of pressure switch & electronic pressure transmitter.

5 Answers   ADMA OPCO, Al-Barrak,

---

what is the difference between PLC & DCS

17 Answers   L&T,

---

Describe the function of Accumulator into the Pump

0 Answers  

---