Answer / bunny

By using a PID controller we can eliminate the offsets and
unwanted oscillations of the process variables we are
dealing with and will get the process variable value close
to the set point value.For that we need to tune the
controller properly and select proper values for P,I and D

Dear all... I have 1 0-400 duplex type RTD, I connected the A side to the temperature indicator and B side to the PLC panel, but when I have observed then found that The PLC side temp has the variation. and it was distub to other RTD temp also. so what can I do.

1 Answers  

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what is concept of field,control room area in transmitters?

1 Answers  

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IS THEIR ANY AGEING EFFECT ON FLOW NOZZLE, ORIFICE, MANIFOLD, OR TRANSMITTER ?

1 Answers  

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how to measure temperature from resistance of rtd?and how to measure temp from voltage of thermocouple?is there any formulas?

3 Answers  

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what is the deference bitween DCS and PLC SCADA HMI System for Power Process Industry.

1 Answers   UltraTech,

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I am having a Phoenix digital to modbus converter. The o/p of the same is connected to flow computer FB407. But the digital signals are updated only after one minute in the flow computer. what may be the cause of delay in communication? Flow computer is having a scanning period of less than 1 sec.

0 Answers  

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what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

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why k factor is important to know in flow transmitter. if we don,t know k factor what will be issue we can face .

1 Answers   Flour Tech Engineers (P) Ltd,

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Exapain Deatails of the PID controlller

4 Answers  

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In 2 wire transmitter 1 wire is used for power and other is used for signal( 4-20)ma In 4 wire transmitter 2 wires are used for power and 2 wires are used for signal (4-20)ma . but my question is "what is the criteria or parameters we have to consider while selecting these transmitters for eg( distance, safety zones etc.

1 Answers  

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What the basic of communication?

4 Answers   Schneider,

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What skill/s does the Instrument Technician has?

6 Answers  

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