What is voltage free(wet) and potential (dry) contact?

2 Answers  

---

what is the difference between RTU & MTU in SCADA system?

4 Answers   Bosch,

---

how to calculate flow range in DP tx

1 Answers   Karnataka Power,

---

What is intrinsically safe system?

0 Answers  

---

What are difference between automatic and manual control system?

5 Answers  

---

---

What is compensation for flow ? Why we use compensation ? What are the factors of different compensation ? We not use then what problems may happen ?

0 Answers  

---

I was working on calibrating turbidity transmitters endress+hauser at effluent polishing plant.We calibrated using NTU buffers.What happened is that when we immersed the sensor, everytime we raise and lower the sensor gradually, the reading will vary.my question is that is there any specifications on what is the required distance from the bottom of the container with buffer to the face of the sensor?Is it ok to install the sensor in a medium which has turbulence specially if bubbles are present?

0 Answers  

---

admittance level sensor meaning?

2 Answers   CGL,

---

What are the types of valves?

0 Answers  

---

How to work & calculated output of the Derivative action in pid controller (Explain Derivative controller)

0 Answers  

---

what is seebeck effect?

7 Answers  

---

can a control valve works without positioner?why need tunning of c/v?

4 Answers  

---