why using negative supply for bentley nevada vibration system ?

0 Answers  

---

Explain , how timer based pneumatic control valve will work ?

1 Answers  

---

What is difference b/w absolute & gauge pressure? EXPLAIN

2 Answers   IFFCO,

---

why we are using pnp npn for sensors is there any other type?

1 Answers   CGL,

---

How to convert 4 wire level transmitter connection to 2 wire.

2 Answers  

---

If any control valve create hunting problem, what is the possible reason and solution?

6 Answers  

---

what is Potential free contact? where it is used?

3 Answers   Engineers India Limited,

---

what is the diffrence between pressure safety valve & pressure relief valve....pls

0 Answers   Oil India,

---

i want formula for flow control.am doing project in flow control using orifice . i know value of the flow level(Q) . upstream(p1) pressure, orifice diameter(Do) , pipe diameter(Di) and oil viscosity(Vi) how can i calculate downstream pressure

0 Answers  

---

Steve said that "An eddy-current probe works by passing an alternating current through a coil of wire and measuring the coil’s impedance" while we are using -24 Volt DC , So I am confused about DC and AC. Plz .

2 Answers   Jindal, Sadara Chemicals,

---

How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.

0 Answers   Petro Rabigh,

---

Tr. Wiring for calibration.

0 Answers   CCIE,

---