Answer / g.ramakrishnan

to install flow transmitter and correct range
orifice,ensure that ft output is linear means dcs side u
have to make sq root.if smart type transmitter means
configured sq root output field itself.then u will get
correct reading.

Answer / bari

Install appropriate dp flow element in the flow line with
Beta ratio corresponding to dp of 2540 mmWC for flow of 500
ltr/hr.

Answer / raees mansoori

use this formula to dcs side Q=K*A*sqrt(H/P) or configured
sqrt output to transmitter side.

Answer / k.sreenivasan

Mr.PasavaRaj,
Your question misses a major point.
Do you have a flow sensor (like orifice or annubar etc)
already installed?If yes, Then you have to match the DP
required by the sensor to the transmitter DP Range.Please
note that 2540 mm wc of the transmitter range can be
changed using communicator (If it is HART) based on
transmitter specifcations.Check what is the minimum span
the tranmitter can be calibrated? if that is greater than
the sensor DP, you have to look for another transmitter.

Answer / pasuvaraj

mr Raees,

Can u explain wat u mean for H & P in this formula, and
also can u explain how the pressure units convert in to
flow rate in the transmitter. I Mean that mm of water colum
is converted into Mass or volumetric flow can u give me the
answer

Answer / jigarsinh vaghela

First of all Good Question

Ans: Use Orifice Bore Calculation sheet
you want process data like pipe size, Max Temp, Max Pressure,
Max Flow rate & Application like Steam or water
put this values in OPA Calculation sheet & you would got dp
range in MMWC

Answer / nadeem iqbal

Dear Sir,if i have flow transmitter range 0 to 2500 mmwc and my DCS range is 0 to t m3/hr ,i m getting 9 Ma how much will be the delta P

Answer / sanjay

by creating proper DP across orifice plates we can measure
flow rate also change the SQRT property in x-mitter

Answer / guruprasad s.v

i am guruprasad honewell employer.

defenetly we can change configure, this fecility is there
in our company.

what is difference between modbus & fieldbus

1 Answers   ABB,

how many types of orifice plates?and explain about it?

2 Answers   Kesoram,

i want all model questions paper for robert bosch

1 Answers   Bosch, Patni,

What is the difference between modbus,fieldbus & profibus

0 Answers   NSL,

I want to know if flowrate increases in 16' pipe line what will happen to upstream pressure and why?

1 Answers  

How can we check Zero of DP type Level Transmitter onside?

7 Answers   Birla,

how to calculate control valve bonnet size?? or how to select its material?

0 Answers   Jacobs,

My flow transmitter range is 0-1000mmwc.DCS range is 0- 100m3/hr.What is correspond out put in terms of milliamps if my flow is 65m3/hr

4 Answers  

Explain the burnout feature.

0 Answers  

how can we measure the pressure in underground cooling water pipeline by using pressure transmitter?what about the tapping position?

2 Answers  

With N nodes and B branches what will have a network ???

0 Answers   BSNL,

In split range control, we will control 2 outputs with time interval. Eg :(with 4-20 ma signal, for 4-12 ma we are operating one control instrument like valve & for 12-20ma we are operating other control instrumet (other valve). If we get a signal of 15ma to first instrument (Valve 1), what will happened to the first valve, and if we get signal above 20 ma to 2 valve what will happened ?

3 Answers