Answer / sachin

4 to 20 mA

Answer / amsal

as sachin wrote 4-20mA
but it is only output of coductivity xmtr.
during calibration of conductivity xmtr its I/P is
resistance (according to its range) which is given by
resistance box.
for example Range is 0- 10 uSIMENS
display------ I/P ---------------------- O/P
0 uSIMENS.= maximum R means infinity = 4mA
2.5 uSIMENS.= 750 Ohms = 8mA
5.0 uSIMENS.= 500 Ohms = 12mA
7.5 uSIMENS.= 250 Ohms = 16mA
10 uSIMENS.= 0 Ohms = 20mA
it is for example only but in practical there is non linear
i/p resistance which will be required to get o/p according
to range
and O/P is 4-20mAs which is shown in the unit of uSIMENS.

How do bending tubing provide better measurement than using tubing fittings such as elbows?

0 Answers  

---

if tx. dp increase or decrese what happend in the reading

1 Answers   BSP,

---

how to tune the closed pid loop?

3 Answers  

---

1. Pl. send details about different types Gas Analyser, like Co2, O2, SOX/NOX, etc. with calibration procedure. 2. How to calibrate H2S gas detector in field?

1 Answers   HPCL, Napesco,

---

Q- In the process of checking AC through Phase Tester our body is the part of circuit but we don't recevie Shock, Why ?

2 Answers  

---

---

How many types of Control Modes in process control, plz tell me all.....?

2 Answers  

---

What is limitation of the ht.of the displacer of a level trol?

0 Answers   CCIE,

---

How can i test procedure grounding for CAT-7 cable? Or How can we test procedure CAT-7 Cable Electrically safe?

0 Answers   Tecnimont,

---

What is the purpose of MATLAB?

3 Answers  

---

What care will you take in the installation of control valves,SCADA,DCS and FOC in Oil and Gas Project?

0 Answers   KNPC,

---

HOW DPT WORKS?

6 Answers   Essar,

---

can install leveltrol in steam drum for measurment the level of steam drum? if not then why?

1 Answers  

---