Answer Posted / er. anish raj

Level Switch performs only switching mechanism. ie. when its electronic circuitry senses the present level is the desired one then its relay coil will operate & the NO contact will turn into NC and vice versa.
Whereas the Level Transmitter will visualize the signal, perform signal conditioning ( amplification) and then transmit the current signal to the controller in the form of 4-20 mA.

Thanks. 

Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

1685

---

Please can anybody help for control valve sizing step by step procedure?

1641

---

why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.

1933

---

Explain about safety integrated level protection? . How it was differ from other protections ?

1258

---

Capacitance, resistance ( colour coding ), parallel & series circuits.

1734

---

---

What is defferent betwen ESP &PCP PUMP .HOW IT IS WORK?

2027

---

Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem

1734

---

Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

1645

---

what are the selections available in configuring a burnout protection of a controller? thanks

1461

---

please tell no. & add. of consultancy who recruit me in power plant as instrumen engg. present i m working in power plant as ass.t instrument engg. thanku mahesh 09226562826

1632

---

Name different parts of a pressure gauge.

646

---

any body who gone thru recent iocl interview.INSTRUMENTATION questions. I need.

1940

---

What materials are used in thermo wells?

617

---

what is temperature compensation?

4785

---

Calibration procedure for Electro magnetic Flow meter

4034

---