WHICH INSTRUMENT USED TO CALIBRATE CONTROL VALVE?

23 Answers   Exxon Mobil, Honeywell,

---

what is the control valve?how many types of control valves are there

6 Answers   Chemin, Hindustan Zinc,

---

What is the reason for not giving very High Proportional Gain Kp in PID Controller?

2 Answers   ABB,

---

Draw a great bridge circuit.

0 Answers   CCIE,

---

why k factor is important to know in flow transmitter. if we don,t know k factor what will be issue we can face .

1 Answers   Flour Tech Engineers (P) Ltd,

---

---

what is the meaning of reverse action and forward action of control valve...

9 Answers   Honeywell, Yokogawa,

---

HOW CAN I CONNECT ROSEMOUNT 3300 LEVEL TRANSMITTER TO Allen-Bradley SLC500

1 Answers  

---

GIVE THE TEMPERATURE RANGE OF PLATIUM RESISTANCE THERMOMETER.

7 Answers   DVC,

---

What is the reverse action and direct action

2 Answers   Samsung,

---

why use to 250 ohm for hart protocol and why hart communicator not communicate without 250 ohm 

4 Answers   OMV,

---

Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 Answers  

---

what is difference between two wire &three wire pt 100 ?

3 Answers   Jindal,

---