Answer / beninst

the barrier is used in hazardous area.to prevent spark explosion in case of gas leaking.

Answer / joe

Zener Barrier is used to avoid the the spark explosion in hazardous area

Answer / hiren

Intrinsically safe barrier use

CAN WE CALIBRATE LEVEL TRANSMITTER USING HART COMMUNICATOR WHEN WATER LEVEL IS PRESENT IN THE BOILER SHELL?

4 Answers   Chemin, Emerson,

---

why I need valve guard and whats different between guard and positioner ??

0 Answers  

---

how level can be measured in open tank with reference to pressure

1 Answers   Atul, INOX,

---

I want to take temp. data from recorder to computer. Which communication system is best from this option(Rs 232- 485/ethernet/USB)?

3 Answers  

---

what will be the output of a temperature transmitter if temperature is 120 degree celcius?

6 Answers   KNPC,

---

---

what is the safety integrity levels (SIL)

1 Answers  

---

types of cable..? Use of every types of cable..?

0 Answers   Hindustan Zinc,

---

We have a Yokogawa Micro-XL DCS, which is having around 300 I/O, but whenever there is any wire gets grounded in field, the 24v supply to all loops gets dipped & all the indications at DCS goes to IOP(shows input open), at present we have fixed 500mA fuses in all the lines but which does not working. Does it required to replace with lower amps fuse, then how much or is there any other solution for this.

2 Answers  

---

what is modbus & what signals are taken through it

2 Answers  

---

Why capacitive banks ar5e important?

5 Answers   Siemens,

---

What is exact difference between the panel earthing and system earthing in DCS system. What is the value of resistence.

0 Answers  

---

need to calculate flow rate with the help of dp range and orifice bore dia and size. range is 0 to 400 inwc and orifice size is 12 inch 150 # rf and bore dia is 7.180 inch. need to calculation for flow rate

0 Answers  

---