Answer / morsli

instrumentation job is to calibrate transmitters for exemple level ,pressure ,flow we use multimeter for the analog transmitter ,in smart transmitters we use a hart protocol .
other work is to calibrate pressure switch ,level switsh,temperature switch .
you adjust the valves switches ,on and off ,open and close.
you calibrate the valve with positionner ,pneumatic positionner or digital .
you deasmantel the pneumatic control valve ,and change the spare parts,the calibrate without positionner ,the open top at 3 psi and the close top at 15 psi.
you look for ground when there is a problem in instrument wiring.
you adjust the controller parameters PROPORTIONAL -INTEGRAL and DEREVATIVE when the controller is operating ,on line process.

List three types Level Switches with their working principles

0 Answers  

---

Why 24VDC power Supply is used as standard for all loop powered transmitters?

8 Answers   Lupin,

---

A RANGE OF TRANSMITTER IS (0-400)B mm abs what is "B"?

1 Answers   HCL,

---

how can we measure the level measurement with the help of pressure gauge?

7 Answers   Reliance,

---

units of pressure,flow, level,temperature? principle of pressure gauge? calibration of pressure tx., level tx., temperature tx.flow tx.? description of two wire ,three wire and four wire R.T.D.? WHAT IS INPUT AND OUTPUT OF TX.? WHAT IS INPUT AND OUTPUT OF R.T.D. AND THERMOCOUPLE? WHAT IS HOT LOOP AND COLD LOOP? WHAT IS INPUT AND OUT PUT AND OUTPUT OF D.C.S. AND P.L.C.? PRINCIPLE AND WORKING OF HART? WHAT IS PNP AND NPN PROXY? CALIBRATION OF PRESSURE ,LEVEL ,FLOW SWITCH? DESCRIPTION OF FIELDBUS FOUNDATION? WORKING OF SOV.?

2 Answers  

---

WHAT IS SMART SENSOR AND DIFFERENT B/W SMART SENSOR AND SENSOR??? PLS GIVE ME ANSWER AS SOON AS POSSIBLE.....

1 Answers  

---

What is differnece between leveltroll and interface leveltrol?

2 Answers  

---

what is plc? Basic function of plc? application of plc in industry? What is lader diagram ? What is the main advantage to use plc in industry?

15 Answers   Schlumberger,

---

What is the formula To convert Degree centigrade to foranhight.

5 Answers  

---

How DP Transmitter can be calibrated for crud application in floating roof tank?

2 Answers  

---

tell how to calibrate a magnetic flow tx, vortex flow tx,dp flow tx,nozzle flow tx and venturi flow tx?

2 Answers   TATA,

---

Describe the functions of the Operator Interface including the considerations related to alarming and display layout/configuration/layers.

0 Answers  

---