What is the difference between compensation and extension cable.
Answer Posted / farhad rabiee roudsari
When connecting thermocouples to instruments, it is
essential that a cable is used, which has the same emf
output as the thermocouple; otherwise spurious emf is
generated at these junctions. The best solution is to use
the same material as the thermocouple (extension cable). A
cheaper alternative is to use compensating cables, the
alloys of which are different from those of the thermocouple
but have the same output over a limited temperature range.
| Is This Answer Correct ? | 13 Yes | 1 No |
Post New Answer View All Answers
what is diffrance between FF & SMART, explain with difination
We are using Rosemount 5400 series Radar Level Transmitters in all types of Sump Applications having oily water hdrocarbon petrochemical nature. What we are facing the problem frequently is that always getting reading frezzed at some value. If we do power recycling , sometimes it is working . then making same freezing problem. If anybody faced before such type of problem and also having solution , Please give the answer.
Can any one send me IOCL instrumentation question papers.. i dont know the pattern of the questions and what to prepare can any one help me on this .. my email id is anwarnishil@gmail.com
For crude application in floating roof tank, how to calibrate a DP Transmitter? How is the floating roof weight considered?
Differentiate between ultrasonic flowmeter and radar type flow meter
Operational amplifiers
anybody having Qatar Petroleum questions for instrument Technician offshore ....please send me
where cascade loop use ?
What is the difference between ff transmitter and non ff transmitter
What is feed factor and its Importance in cement industry? How we can solve feed factor?.
What is the basic difference between Modbus and CAN Open Protocols
steps for installing orifice plate?
In turbine what does term CDP, NI, NH, HSSOC means.
tell me the field & lab calibration procedure step by step with diagram of pressure gauge, pressure switch, pressure transmitter, temperature switch, level switch, flow switch, flow transmitter, temperature transmitter, temperature indicator, flow indicator, level indicator, control valve, thermocouple, pressure indicator (digital & analogue),
what is the vital subject for scoring bhel exam&what is the question pattern