If a flow transmitter (magnetic type FT) that can measure flow and temperature,

If a flow transmitter (magnetic type FT) that can measure flow and temperature, then why in some industries people use flow transmitter and temperature transmitter in the same line 1 after another? Even after 1 single flow FT is capable of measuring flow as well as temperature.

Question Posted / aniketskadam007

1 Answers
4682 Views
Process Control Technologies, I also Faced
E-Mail Answers

If a flow transmitter (magnetic type FT) that can measure flow and temperature, then why in some ind..

Answer / carl_ellis

I'm aware of few high end flow meters (coriolis) that measure process temperature as well a flow rate, but I'm not aware of a magnetic flow meter that does so. There are magmeters that measure the electronic temperature of the electronics for diagnostics, but the temperature value is really to used for warranty replacement evaluation (to make sure that the failure wasn't due to overheating).

The multimeasurement concept is certainly valid - fewer insertions into the process. As to why a process temperature output is available but is not used but a separate temperature sensor is used, I can only speculate that either the instrumentation designer was just unaware of the availability of the temperature from the flow meter or was subject to the "we've always done it as a separate sensor" philosophy.

In general though, the vast majority of flow meters are just that, flow meters; they are not multivariable meters with a flow output and a temperature output. With the increased use of fieldbus, that's likely to change over the next decade.

Carl Ellis
Measure First

Is This Answer Correct ?

2 Yes

0 No

Post New Answer

More Instrumentation Interview Questions

it is possible to check the fail safe condition in pressure transmitter. if possible how?

0 Answers

How to measure the dust in chimney(spm)?

0 Answers Thermax,

What is Modbus communication

0 Answers

in the pipe line if the control valve fails to respond to controller action,by what means we can stop the flow in the pipe line ?

9 Answers

What is the relationship between the universal gravitational constant (G) and the acceleration due to gravity (g)?

3 Answers APPSC,

which type inter lock use in petrochemical refinery,and oil & gas?

0 Answers

what is pt100 RTD, and does 100 stands for

8 Answers Tata Power,

how is hazardous and non hazardous area classified?

2 Answers Bhel, Power Plant, Samsung,

Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.

0 Answers CCIE,

Can a Differential Pressure Transmitter be used as a normal pressure transmitter??

3 Answers

what is difference between OP AMP and differential amplifier?

5 Answers TCS,

what is a boiler tube leakage detector? ... what is the working principle ?

1 Answers

For more Instrumentation Interview Questions Click Here