How earthing can be checked????

0 Answers  

---

What is principle of ultrasonic level transmitter?

3 Answers  

---

What is the detail function of I/O card in DCS ? Why we dont use the I/O directly with controller?

3 Answers   Kekran Mekran, TCE,

---

whats the problem will arrise if we rotate the hosing screw of the differential pressure transmitter?

1 Answers  

---

What is the difference between floating and fixed voltage?

1 Answers  

---

---

how far the two wire transmission (loop power) maximum distance suitable?

2 Answers   PCIL,

---

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

2 Answers   ABB,

---

what happens when the profibus fails while in operation (operation of a valve)?

5 Answers   L&T,

---

What is the principle of capacitance type level transmitter?

0 Answers  

---

we have LPG spherical Tank and we want to install DP Xmtr for level measurement.below are the physical measurements Total height of tank is 1850 mtr but 0% level is 1000mm above bottom and 100% level is 450 below upper side.What is the LRV and URV and please mention the formula .The SG of LPG is 0.53 and Wet Leg method will be used.

7 Answers  

---

what is the standard of determining opening/closing time of Motor Operated Valve?

1 Answers  

---

How 2 calibrate level tank having large height..?

2 Answers  

---