Answer / ramesh dham

Input for RPM indicator during calibration is signal generator which accurately generate 50% duty cycle square wave having volt. 12 Vdc ( may be adjustable).

Could you explain to me the enraf (servo gauge) mechanism. How it works ? and how it is working on archimedes theory while it's not immersed into the surface? and how can we calibrate it ? Thanx

1 Answers  

---

what is coriolis principle for mass flowmeter?

5 Answers   ABB,

---

How to Calibrate Penumatic Transmitter.LRV= -60 URV= -20.Can u give me Answer.

9 Answers   ABB,

---

what is the deferance between LCN and UCN.

1 Answers  

---

What is the difference between PLC-HMI and DCS as each function of DCS based system is possible in PLC ?

2 Answers   Lucky Cement,

---

Tell me the field calibration procedure step by step with diagram of temperature transmitter, temperature indicator, flow indicator, level indicator, control valve, thermocouple, pressure indicator (digital & analogue).

1 Answers  

---

The process variables that need to monitored and controlled are ________, ________, _________ and

1 Answers  

---

What is possitive and negative feedback?

3 Answers   KNPC,

---

how many types of elements are there?

1 Answers  

---

what is the control valve?how many types of control valves are there

6 Answers   Chemin, Hindustan Zinc,

---

what is mapping in instrumentation and control engineering

2 Answers  

---

TCD Principle

1 Answers  

---