Answer / iyyappan.m

Open loop is a only one transmitter here is no control of valve or anything.

Closed loop is a Pid loop ,transmitter control the control valvewith operator desired setpoint.

How to rerange a dp type level transmitter after installation?

1 Answers   NSH,

---

I have a MRE200 amplifier for controlling a mitsubishi servo motor, I would like to know how many pulses are required to rotate the servo motor by 1 degree and what must be the pulse width

1 Answers   Essar,

---

Basics Instrumentation Question

1 Answers   Advantek Fuel Systems,

---

How to Calibrate Coriolis Flow transmitter in field

0 Answers  

---

What is upsampling and downsampling?

1 Answers  

---

what is intrument termination what is commisioning

3 Answers  

---

in differential pressure transmitter,min&max pressure range for hp&lp

0 Answers  

---

What is rang ability?

0 Answers  

---

how is a displacer type level transmitter calibrated.explain the method?

2 Answers   Emirates,

---

can any one explain in which term we are flow flow is it volumetric r is it mass? and y

0 Answers  

---

What safety precautions you will adopt to work on Steam service control valve?

1 Answers   QAFCO,

---

Please send me the sample question of Instrumentation of hpcl/iocl exam. my mail id hihi_kiholo@rediffmail.com

0 Answers  

---