what is the difference between RTD & TERMO COUPLE?
Answer / binod bhanj
The most notable difference between a thermocouple and an RTD is the principle of operation and manufacturing. A thermocouple is made of two dissimilar metals joined so that a potential difference generated between the points of contact is a measure of the temperature. An RTD, operates on the principle that electrical resistance of certain metals changes in a predictable way depending on the rise or fall in temperature. The two measurement tools each have their own advantages and disadvantages.
Advantages of the thermocouple include a wide range from -300°F to 2300°F, fast response time (under a second in some cases), low initial cost and durability. Overall, thermocouples are able to withstand rugged applications. Disadvantages for thermocouples are their wide accuracy range, especially at elevated temperatures, difficult to recalibrate (seeing as though they are dependant upon the environment) and, finally, installation can be expensive if long lengths of thermocouple wire are needed.
On the flip side, advantages for RTDs include stable output over a long period of time, ease of recalibration, and accurate readings over narrow temperature spans. Disadvantages, when compared to the thermocouples, are: smaller overall temperature range ( -330°F to 930°F), higher initial cost and they are more fragile in rugged, industrial environments.
Is This Answer Correct ? | 2 Yes | 0 No |
how many types of grounding?
1 KW = how many kva
What are the two major types of control system?
Can we inject more current in ct primary paralleling 2 loading transformers/Injection kit at a time?let ct ratio be (5000/1A)(per kit rating 2000A range),i need to inject 5000A,if this cant b done means wat is d optional?
How the FM200 Gas Supression System wil Work????
what is mean by harmonics
What are HT & LT Cables? What are their values?
why the motor is rated as kw& transformer as kva
Why VL is more than the Vc?
why we can choose induction machine in wind mill? why can`t use synchronous machine?
What do you mean by distribution transformers?
what's the outstanding feature of universal motor?