How to Calibrate Temperature Switch in field

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what is the difference between Feedback controller and Feed forward controller. and when it is to be used.

3 Answers  

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What is the function of positioner in control valves? does the control valve operate without positioner?

3 Answers   Hofincons,

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how control valve works?

7 Answers   Qatar Airlines,

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Q- Control problem are mainly classified in _____ types. a-)4 b-)3 c-)6 d-)nono of these Few of them i know is 1- regulator type problem (eg- Air conditioner) 2- tracking problem (eg missile trcking problem) 3- sybernatics 4- optimal control problem

0 Answers   Sail,

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If a flow transmitter (magnetic type FT) that can measure flow and temperature, then why in some industries people use flow transmitter and temperature transmitter in the same line 1 after another? Even after 1 single flow FT is capable of measuring flow as well as temperature.

1 Answers   Process Control Technologies,

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what diffrence b/w plc s7200,300,400

0 Answers   IFFCO, Reliance,

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Can 2 transmitters be connected to Integral orifice meter taps? Does an integral orifice comes with 2 set of taps?

1 Answers  

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pressure switch range 0 to 2bar.i have to install from ground level to 5 meters height.what is the formula the to increse the range ? and every 1 meter how much pressure should be add ?

3 Answers  

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Is it possible to convert 4 wire transmitter to convert to 2 wire with additional relay.Please send detial with drawing,i will appreciate.

2 Answers  

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what is field bus system. need defination

3 Answers   Takreer,

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why we use condesiate parts before tranmitters?

3 Answers  

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