If mVolts can drop by resistance of wire as compare to mA, then how thermocoup

Categories >> Engineering >> Instrumentation
Suggest New Category

If mVolts can drop by resistance of wire as compare to mA,
then how thermocouple mV reaches in CCR as accurate value?

Question Posted / amsal zaman

7 Answers
10149 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR..

Answer / ravinder tanwar

It depends on quqlity of cable and generally it is
specified by the cable manufacturer that for a perticular
distance what will be the loses and we add that quantity in
our logic for accurate value

Is This Answer Correct ?

7 Yes

4 No

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR..

Answer / praful lilhare

bcoz use the specialy manufactured t/c cable and for each
type of t/c we use different t/c cable of that t/c material

Is This Answer Correct ?

2 Yes

0 No

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR..

Answer / jayakrishnan unnikrishnan

First upon CCR not receiving any mv,it is receiving only ma.
mv is going to the transmiter and the transmiter giving
output to panel and console.
& voltage drop , Thermo couple extension cable is not a
normal signal cable it is depends on the thermocouple type.
consider K type thermocouple so the extension cable should
be Nickel Aluminium, b'coz Nickel Chromium is the K type.
it will avoid voltage drop.

Is This Answer Correct ?

1 Yes

0 No

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR..

Answer / sushil d. jambhulkar

TO COMPENSATE THE EFFECT OF TEMP & RESISTANCE ON mV WE USE
COMPENSATED CABLE FOR THERMOCOUPLE.

Is This Answer Correct ?

0 Yes

0 No

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR..

Answer / ponnamalla venkata satish

thats why we use single stand not multi core cable for
thermocouple measurement

Is This Answer Correct ?

2 Yes

3 No

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR..

Answer / rajesh

Each type of themocouple different types of metals winding are used Example k-type of thermo couple used cromium aluminium metals are used, like j,s,t ect. This metals used as per thermo couple mvolts droping is reducedu

Is This Answer Correct ?

0 Yes

1 No

If mVolts can drop by resistance of wire as compare to mA, then how thermocouple mV reaches in CCR..

Answer / aebrahim

the resistance of thermocouple is les than resistance of
normal cable so voltage drop across wire not too big

Is This Answer Correct ?

0 Yes

2 No

Post New Answer

More Instrumentation Interview Questions

what is mass flow meter, working principle of mass flow meter and its installation.

2 Answers

what is the formula for changing Range of Transmitter from X mmwc to some Y mmwc with respect to DCS NCMH flow range from x NCMH to y NCMH?

1 Answers HCL,

Hi, Is there any smart plant instrumentation design training institute in Bangalore?

0 Answers

What FLOW METER generally used in Gas plant?

5 Answers Gasco,

How to calibration a control valve?

0 Answers

3. Differentiate between ultrasonic flowmeter and radar type flow meter.

0 Answers

WHEN DO WE GO FOR FMCW TYPE RADAR & PW TYPE RADAR ?

1 Answers

Where are oxygen analysers installed in cfbc boilers? What are their usual readings?

0 Answers

What is DeltaV?

2 Answers

what is a instrumentation ?

10 Answers

Hello to all....I am an Instrumentation Graduate and i am passed out in this year only.. I am unable to find the job in my core instrumentation.. so any boby tell me how to and where to search the job....please...and also tell me i there are any courses offered in the instrumentation stream so i can do it... you can send your suggestions to my mail-id i.e Ganesh20084u@gmail.com ... please..

0 Answers

what is vibration sensor working principal and how many types its has??

5 Answers

For more Instrumentation Interview Questions Click Here