Answer / b. nani babu

At 0 mamp we can't identify the transmitter is working or not properly. So we are using 4-20 mamp signal used in transmitters.

Answer / siddhesh

4-20 signal is Intrinsically safe vale of current. also it dose not get affected with EMI. 

Answer / deepakrajasekaran.r

From 4ma to 20ma only we could got linear output before 4ma we will received non linear output

Answer / hossam nasr

From 4to20 ma is linear curve and it's suitable to calculate all values from zero to span

Answer / amar.sm

NO LOSSES IN 4-20 milli amps or no drop

What is scale factor of proximitor & unit of the viabration.

2 Answers   Sabic,

---

Why we are using DPT(Differential Pressure Transmitter) in separator instead of level trasmitter?

0 Answers  

---

I have one problem for masoneilan displacer type LT.I give some imformation in data shéet given for liquid level range 0 to 600 mm and sg .955 problem is 0% is ok 25%(23%) or 50%(48%)and 75%(73%) and 100% is ok this is up value and down value all ok so please halpe me

2 Answers   Hyundai, TATA,

---

why we take %i0.0 as input for twido plc

0 Answers  

---

what do you mean by cathodic protection?

1 Answers   Saipem,

---

---

waht is difference between pressure transmitter and transuducer

4 Answers   Gasco,

---

NSV type probe stands for

0 Answers   Qatar Petroleums,

---

Explain bernoulli’s theorem. State its application.

0 Answers  

---

what is an ambient temperature?

5 Answers   Reliance,

---

how we calculate the range of flow from a dp?i mean if we have a dp,3810mm h2o.how much flow ranges we can use for this DP?

1 Answers  

---

generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

1 Answers   Indian Steel,

---

1. How can leveltrol be installed in steam drum for measuring the level of steam drum?

1 Answers   Fischer,

---