Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / sam.r
Most RTD’s incorporate a third wire with resistance R3.
This configuration provides one connection to one end and
two to the other end of the sensor. Connected to an
instrument designed to accept 3-wire input, compensation is
achieved for lead resistance and temperature change in lead
resistance. This is the most commonly used configuration.
If three identical type wires are used and their lengths are
equal, then R1 = R2 = R3. By measuring the resistance
through leads 1, 2 and the resistance element, a total
system resistance is measured (R1 + R2 + RE ). If the
resistance is also measured through leads 2 and 3 (R2 + R3),
we obtain the resistance of just the lead wires, and since
all lead wire resistances are equal, subtracting this value
(R2 + R3) from the total system resistance (R1 + R2 + RE)
leaves us with just RE, and an accurate temperature
measurement has been made.
| Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
Which is the best field foundation bus. ( FF ) Yokogawa, Honeywell or others ?
defination of radial vibration?
How to fix back the valve actuator stem
What is force balance principle? State some of its’ advantages.
what is the process to make control schematic ?
Which type of diaphragm use in costic line, dm water line, natural gas line, oil line?
What is the difference between mmwc and mmwg?
model question paper of instrumentation for Jindal GET 2010.plz reply sudhanshukumar08@yahoo.com
what can of fault ofently come in vibration mesurement?
Can anyone send most commonly asked interview question in Oil & Gas industry
How many interlocks at turbine side?
In turbine what does term CDP, NI, NH, HSSOC means.
how 3 out of 2 Logic/interlocks works? give brief explanation with help of diagram.
What is the procedure of calibration of Load cell?
Programmable Logic control.
