Answer / vijayaragavan.c.m

Differential pressure flow measurement is old and reliable.
With the aid of microprocessor technology now discharge
coefficient calculations can be done in real time.
This are called multivariable mass flow meters.
By other side we can use typical differential pressure
devices such as (nozzles, orifice plate , etc).
The ISO5167 standard condenses all this experimental
information giving the formulas and procedures for
manufacturing a differential pressure flow measurement
device of the standard types with a predictable uncertainty.

What materials are used in thermo wells?

0 Answers  

---

What kind of feedback is used in DP cells.

1 Answers   CCIE,

---

How a pH sensor & analyzer work at waste water treatment plant, whats the principle & science is beyond this,How pH sensor sence & convert signal & move toward analyzer & analyzer show reading in percent? also what is temperature compensate option in analyzer

1 Answers  

---

What is loop1 and loop2 in MTS LT?

0 Answers  

---

if conical type tank in top LEFT side solid material coming but LT MOUNTED IN TOP OF LEFT SIDE, how to measure ultrasonic level transmitter ?

1 Answers   Cairn,

---

How do you calibration D.P transmitter? ?

2 Answers   Power Plant,

---

when an eddy current probe is installed inside of a turbine or compressor in case of probe problem same as:crash of head of probe,changing the scale factor because of low measuring gap(physical gap is ok(example=1.14mm)but voltage is reduced(example=-6 volts),is any way to check the probe,when the ohm of probe is ok.thank you,(Karim Tavakoli)

1 Answers  

---

why the SCAN time of DCS is more & that of PLC is less? if the SCAN time of DCS then why we use DCS.

4 Answers  

---

how to make a calliberation for deffirential pressure

3 Answers  

---

what is concept of field,control room area in transmitters?

1 Answers  

---

what should be distance from tapping point to inallation place of instruments?

3 Answers   Tasnee Petrochemicals,

---

I have installed a RTD whose length is 2250mm(RTD stem length), but it's upper 200 -250mm is out of the reactor, and this upper 200mm stem is surrounded by atmospheric temp. And the lower portion i.e. 2000mm is in contact with the measuring fluid, then does the final measuring temp. Gonna change as the upper 200mm RTD stem is out of reactor?

1 Answers   Process Control Technologies,

---