how to tune siemens sipart electro pneumatic positioner..plz tel me..

0 Answers  

---

which transister (npn or pnp) is used in vibration monitoring for negative voltage? 

2 Answers  

---

Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.

0 Answers  

---

what is full form of NAK?

1 Answers  

---

What is difference between loop and zone ?

5 Answers   Adgas, Bilt,

---

---

My friend has faced this question! I don't know clearly. So please anyone give me the correct and short answer to this question? What is variable frequency drive? Types, what is star to delta? Why this arrangement necessary?

5 Answers   Asian Paints, TCS,

---

warning lamp does not light, but it does light when the wire from the lamp going to the sending unit is grounded (the part that plugs into the sending unit) what does this indicate)?

1 Answers  

---

can someone tell me about electronic speed switch &how it conect with proximittyswitch?(with dgm)

0 Answers  

---

why any measurement made interms of pressure is more accurate ? to be more precise most of the flow velocity is made interms of pressure and it is accurate. what is the reason behind pressure measurement being accurate ?

0 Answers   NATPET,

---

what diffrence b/w plc s7200,300,400

0 Answers   IFFCO, Reliance,

---

Tr. Wiring for calibration.

0 Answers   CCIE,

---

what is the path to communicate from profi to ofc.what is the means of communication.what is multi cire cable in ofc.

1 Answers  

---