How many ohms are required for proper earthing?

0 Answers  

---

why we are using magnet for calibration of gas detector?

0 Answers   NSH,

---

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  

---

how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?

2 Answers  

---

How to connect field devices to PLC and DCS using a FIELD BUS, DP,MOD BUS(please tell me any extra interfce or adopters need in this case if we use remote i/o s)

3 Answers  

---

how u choose thermowell lenght n pnumatic C/v size?

0 Answers  

---

how to calibrate transmitter

3 Answers   Sabic,

---

where Pirani gauges are uesd in case of pressure measurement?

3 Answers  

---

canu tell me why 4-20 ma and why not this 3-25ma?please give reason of this value.

6 Answers  

---

what are the sensor types of vibration&speed?n what is proximity sensor?

3 Answers  

---

what is the advantage of submersible level transmitter compare to ultrasonic level transmitter?

0 Answers  

---

1. How many output signals do wew have in process control? 2. Could you write down the names of the pre-commissioning and commissioning stage test instruments and explain them (more than 5 items)? 3. What is the first step to commission a transmitter on service? 4. What is RTD? 5. Find the output value in MA of a temperature transmitter (RTD Type) at 120degree celius? 6. What is the O/P signal of a pneumatic transmitter? 7. What is the O/P signal of an elctronic transmitter? 8. What is the close loop and open loon?

4 Answers  

---