Answer / vaibhav v t

ATEX means Atmosphere Explosives.ATEX is europiean body for
issuing certification to instruments for thier use in
hazardous area/application.ATEX has specific marking on
instruments which mentions class, div, temp class,gas class.

Instrinsic safe means it is one type achiving safety for
usisng instruments in hazardous application.Electronics in
instruments is designed in a such way that energy generated
during spark inside is such low so tat it will not ignite
explosive gas-air mixture.All componenets are low power
feed.

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

0 Answers   IOCL,

---

hello dear i have faced problem in drum level transmitter. the problem is when i engrize the meter meter shows 100% but the actual level 40 or something plz suggest me

7 Answers  

---

HOW TO CALIBRATE A PRESSURE SWITCH?

7 Answers  

---

What is trim material . Why it is known as trim.

1 Answers   L&T, LNG,

---

what is the difference between auto tuning and manual tuning of controllers(eg:PID,PI,PD CONTROLLERS )

2 Answers   GATE,

---

Tr. Wiring for calibration.

0 Answers   CCIE,

---

what is rtd

4 Answers   Petrofac,

---

what is difference between total flow and flow rate in general ?? explain it with daily life example.

3 Answers   GNFC,

---

POSSITIVE PULSE IS APPLIED TO AN INVERTER INPUT.THE TIME FROM THE LEADING EDGE OF THE INPUT TO THE LEADING EDGE OF THE OUTPUT IS 10 ns. THE TIME FROM THE TRAILING EDGE OF THE INPUT TO THE TRYLING EDGE OF THE OUTPUT IS 8 ns. WHAT ARE THE VALUES OF tPLH and tPHL?

0 Answers  

---

WHEN BOTH WIRES OF THERMOCOUPLE R SHORTED WHAT IS THE OUTPUT THE TEMP ARE 0,30,250,320

13 Answers  

---

If we increase only P what will be controller action ?

0 Answers   IMECO,

---

in mass flow meter what is drive friquancy ?

0 Answers  

---