WE Know that different supply voltage of solenoid valve like 24,110,220 etc..how we check the solenoid supply is 24v or 220 NOTE: No specification at device.

2 Answers   OMV,

---

plz... clarify my answer, how to calibrate vaccum (DP)leveltransmitter,it is hart. (digital).DETAILS:(coloumn)closedtank height 2650mm,and tx range is 0-1500mmH20.

1 Answers   KNPC,

---

how can leve transmetter calibate in feild .and also put cv and flow plz .....

0 Answers   IBM,

---

how to measure draft pressure in transmitter pl. give its single line digram

0 Answers  

---

I have seen the Temperature element (T/C & RTD) installed in process line on 45 degree position, Why? What it mean? How many types of tapping position for temperature elements?

4 Answers  

---

---

in control valve is constructed as per API 6D or API 6A, then which standard is used for fire testing of valve?.

1 Answers  

---

How to work temperature gauge?

0 Answers   KJS,

---

I want to know the questions asked in ONGC interview(after being selected in the written exam) for Instrumentation branch.Kindly help.

0 Answers  

---

Is it ok, to use non-contact type Radar type LT, on a tank that is half circular from the bottom side? If yes the, isn't the waves gonna bent in other directions? 

0 Answers   Process Control Technologies,

---

what is difference btween rotameter and orifice plate?

3 Answers  

---

How to convert Differential pressure to flow in TPH

0 Answers   Chettinad, ELCO,

---

Why do we need to install hook-up line differential pressure type level transmitter when the differential pressure type level transmitter with capillary are available?

2 Answers  

---