If mVolts can drop by resistance of wire as compare to mA,
then how thermocouple mV reaches in CCR as accurate value?
Answers were Sorted based on User's Feedback
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 |
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 |
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 |
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 |
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 |
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 |
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 |
I want to measure flow by using DP Tx and range is 0 to 1200 Kg/cm2 ?
How to set up the various advanced process controllers, input the proper parameters, and tune those controllers given related control system information.
what are the standards used for earthing instruments in the field?
who discoverd ohms law?
we are using centum vp as monitoring with Dell precision work station T3600 but some times PC(s) are restarted automatically . how we can solve this problem? thanks
How can i copy program (parameter) from mm440 (V.F.D.) by using BOP?
How find CGPA? when marks are 515/850 & 2559/3350. Plz any one tell me.
list of flame proof certification ?
compare the thermocouple and pyrometer,which one is the best?why?
how is work pressure switch& level switch?what is the principle of this?
pls give me presant awerness quistion and answer in my emailid.
Related to control system, What is difference between 4-20 mA active & 4-20 mA pasive signal.
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)