Answer / hassab

for detecting the cut-of wires (0 mA)

what is the input to be given in digital flow meter during the the calibration time?

0 Answers   ONGC,

---

I HAVE PRESSURE TRANSMITTER WITH TWO WIRES 24 VOLTS SUPPLY.IF TRANSMITTER WILL GIVE SIGNAL TO THE DCS WHAT HAPPEN TO THE 24 VOLTS POWER SUPPLY IT WILL DROP OR REMAIN TO 24 VOLTS POWER SUPPLY.

3 Answers  

---

Differentiate between PLC, SCADA and DCS systems

1 Answers   Mumias Sugar, SRF, Trimula Industries,

---

why we use by pas on a positioner? When can a by pass be not used on a positioner ?

2 Answers  

---

Explain pH, Conductivity.

0 Answers   CCIE,

---

in the pipe line if the control valve fails to respond to controller action,by what means we can stop the flow in the pipe line ?

9 Answers  

---

What is the minimum rating availalbe for weld neck orifice in market?

0 Answers   Jindal,

---

What is the start up procedure of desalter

0 Answers   Reliance,

---

What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).

0 Answers  

---

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,

---

how its work inductive proximity sensor explain briefly?

1 Answers  

---

i have one temperature TX in my loop check time once i was remove elament temp gose maximum then i am conect corectly but still now temp showing maximum what can i do this problem?

2 Answers  

---