Answer / karthigai selvan

in the field have to isolate first hp and lp side isolate
valves
fill the water on both side of both impulse tubes same time
both tubes should be in ambient(open to atmosphere) check
zero if not do zero trim then line up


thanks

Answer / sahnis

First step is to isolate the trasmitter chamber from tank.
Close HP first and then LP. After that drain the Chamber by
opening drain valve on the bottom of the chamber. Then
connect a trasparent hose and keep it parallel to the
chamber to know the level inside the Transmitter chamber.
Then start filling the Fluid untill the low level. When the
low level reached, the zero adjustment( 4mA output from tx)
can be done by turning the zero adjustment screw. Then fill
the fluid upto highest level and turn the span to get 20mA.
Calibration is done and the instrument is now ready to be on
loop.

micromotion flow meter used for

3 Answers   Reliance,

---

What is the absolute temperature

2 Answers  

---

What is the difference between pt100, pt500 and pt1000 RTDs?

3 Answers   ICI Pakistan,

---

what is thermo coupler and how it works

2 Answers   Tisco,

---

what is cavitation ?

7 Answers  

---

---

Can we use a 10000 Lph Flow Transmitter in 100 LPH flow line to get 20mA O/P by adjusting SPAN ?

1 Answers  

---

what is the function of 3 way manifold valve in a closed loop system?

1 Answers   Emerson,

---

can we copy the software from a transmitter using hht(hart 275) ?

0 Answers  

---

why pneumatic control signal output is use 0.2 to 1 kg/cm2

3 Answers   Jindal,

---

can i get any detail of interview question asked for instrumentation,plc,scada ,dcs..............

2 Answers   Asec, Honeywell,

---

without color coding, without nameplate, without multimeter how can you find the type of thermocouple???

1 Answers   Sabic,

---

what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????

1 Answers  

---