Answer / jaffer

differential pressure transmitters:

1.both side applied a pneumatic pressure in the h.p&l.p side
check the response on the dp cell.
2.equal pressure on the both side and then transmitters shown
a zero value.
3.upper range value(URL)on the h.p side 10,000mmwc or 1kg/cm2. this value depend on process reqirement.
4.lower range value(LRL)on the l.p side 0 mmwc or 0 kg/cm2.
5.And then change value&change the tag no.
6.check the states of the transmitter. by the help of field calibration devices.

pressure transmitters:
1.the pressure transmitter is only one physical quantity sensing input&applied a input and then same 2,3,4,5,6steps.

A pressure Tx accuracy is 0.2%. Signal o/p is 4-20ma.span is 16 Ma.how many deviate the o/p then calibration needed

1 Answers  

---

If we increase PI controller what will be action.

1 Answers   IMECO,

---

Name different types of bourdon tubes.

0 Answers  

---

What is the relationship between GAIN and PROPORTIONAL BAND.

1 Answers   Kharafi National, Sabic,

---

suppose there is gas flow meter I want to know weather meter calibration is done at high pressure or low pressure? pls justify.

2 Answers   Siemens,

---

Can u tell me the principle of the tc,rtd,level switch,pressure switch ,transmitter(pr flow level temp.),vibration...plz

0 Answers   Adani, SRF,

---

what is mean by live zero and dead zero

3 Answers  

---

HOW TO CHECK THERMOCOUPLE AND RTD & WHAT IS THE DIFFERENCE BETWEEN THERMOCOUPLE AND RTD

14 Answers  

---

can any one explain in which term we are flow flow is it volumetric r is it mass? and y

0 Answers  

---

can you send remote seal interface level transmitter calculation steps for oil water saperator.

0 Answers   Sasol Firm, Thermax,

---

How to do calibration of magnetic flowmeter

1 Answers   Kharafi National,

---

How DP Transmitter can be calibrated for crud application in floating roof tank?

2 Answers  

---