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1. How many output signals do wew have in process control?
2. Could you write down the names of the pre-commissioning
and commissioning stage test instruments and explain them
(more than 5 items)?
3. What is the first step to commission a transmitter on
service?
4. What is RTD?
5. Find the output value in MA of a temperature transmitter
(RTD Type) at 120degree celius?
6. What is the O/P signal of a pneumatic transmitter?
7. What is the O/P signal of an elctronic transmitter?
8. What is the close loop and open loon?
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Answer Posted / biswarup das
Answer of Ques No.5)) Transmitter(Tx) o/p depends on
calibration range. If the Tx is calibrated in the range
0-120degC. Then it will show 20ma when the actual
temperature would be 120degC.
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