What is Positive Calibration and Negative Calibration?

0 Answers   SA Kent,

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I am manjunath having exp in maintenance of chemical plants,know i want to do a design course INTOOLS,after doing design course can we get jobs in design field.sinve i dont have design exp..

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I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann

0 Answers  

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what sud u do if u dont get feedback from control valve?

1 Answers   Siemens,

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calculate the rane of level use of this values, h=3 meter density=0.9 , whats the rang?

2 Answers  

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dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.

0 Answers   CPL,

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DCS marshilling Cabinet Power supply can be replace during plant running time?

1 Answers  

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I have installed a RTD whose length is 2250mm(RTD stem length), but it's upper 200 -250mm is out of the reactor, and this upper 200mm stem is surrounded by atmospheric temp. And the lower portion i.e. 2000mm is in contact with the measuring fluid, then does the final measuring temp. Gonna change as the upper 200mm RTD stem is out of reactor?

1 Answers   Process Control Technologies,

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What are primary elements of measuring pressure? Which type of pressure can be measured by these elements?

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what is basic difference between motion balance and force balance in pneumatic instrument?

0 Answers   Sterlite, TCL,

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If a warning lamp will operate with the ground circuit is bypassed with a jumper wire to ground, what should you check?

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in which mode of the zener diode act when load voltage is approximately constant

1 Answers  

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