Answer / janes

4-20mA Active : 2 wire device. same pair of wire is used
for the Power supply and Output 4-20 mA Signal.
4-20mA Pasive : 4 wire Device. Device having external power
supply -110 Vac / 230 Vac / 24 Vdc and generate the 4-20mA.

what is function of ESD , and how is it work, explain with difination

1 Answers   Bapco Bahrain Petroleum Company, BMB,

---

Why rdt and thermocouple both give different output .and one things more, how to generate  ohm or mili volt  plz mail me merajalam143545@yahoo.com

0 Answers   Samsung,

---

calibration of instruments.

11 Answers   ONGC,

---

Flow tax range 0 to 100 mmh2o ,flow rate 40 tons /hr, I want change flow rate example 42 tons/hr so tx range ?

2 Answers  

---

I want to install analog type, flange mounted gas flow meter (line size - 2"), for CNG flow measurement.Kindly give some details of flowmeter or suppler name, available in India.

1 Answers  

---

how we will install a positioner ?

2 Answers   Descon,

---

why we are using 4-20ma why cant we use 4-40ma

3 Answers  

---

how to convert cubic metre per hour to newton cubic metre per hour

0 Answers  

---

which instrument is most commonly used to observe the external features of a grasshopper's abdomen?

1 Answers  

---

Why thermo wells are used?

1 Answers  

---

When LP SURGE happening in compressor

3 Answers   KNPC, KOC,

---

Calibration of flow transmitter.

1 Answers   CCIE, Power Plant,

---