Interested to Buy Any Domain ? << Click Here >> for more details...
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?
- 4 Answers
- 10781 Views
- I also Faced
- E-Mail Answers
Answer Posted / kalla anil kumar,jeypore
1- it may analog and digital, or
2- lot of test instruments like pressure calibrator dead weght testor,(DRUCK),temperator calibrator DECODE BOX,temp bath,For control valve mA source,for vabration (vabolator) etc.
3- we have know the tag,location and application of transmitter,
4-RTD- Resistance temperature detector, it is used up -200 to 600 deg C,
5- first we should know transmitter Range, then we calculate mA, if the range is 120 then 0deg 4mA,30deg 8mA,60deg 12mA,90deg 16mA and 120Deg 20mA,
6- .2 to 1 kg/cm2 or 3 to 15psi
7- 0 to 20mA, 4 to 20mA
8- in a close loop PID control,transmitter, and final control element like control valve,on/off valve, and MOV etc, it will work on auto there will be set valve then controlling out put will come from PID-C, in open loop there will be no set point we have control by manual,
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
can any send me a forbes marshall dtron 316 manual
please send the drdo exam paper
What are primary elements of measuring pressure?
few questions on RS 232,1 question on relationship of impedance and turns ratio, many questions on flowmeters
sir, give me placement papers and interview quistion of birla group company of copper.
Calibration of controller (pneumatic)
principle of dead weight tester ?
field bus transmitter calibration procedure tell me
plz you help about Que paper of mahagenco previous your,any model paper relad to it{maharastra power genration}
what are the steps I have to deal with?
what deference between panel earth and systemearth
What is the use of control cable?
How you calibrate absolute pressure with the calibration range of 0 to 1000 0C Absolute. Please explain the procedure for calibration.
What is the main difference between Cavitation and Flashing?
How many types of sensor
