define optical temperature detector

1 Answers  

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please tell me how to convert double acting ytc positioner yt-1200 into single acting ytc positioner ?

1 Answers  

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sir ,iam in dem urgent need of HPCL Paper of Instrumentation Branch plz send me at your earliest convenience at ujjwal_sharma1983@yahoo.com

0 Answers   ONGC,

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why can't we use 5-20mA standard or some other instead of 4- 20mA?

6 Answers   Emerson,

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If Solenoidal valve works in manual mode but not in Auto mode. What should be the problem?

8 Answers   Bharathi Cement, Titanium,

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

1 Answers  

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What kind of feedback is used in DP cells.

1 Answers   CCIE,

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what is difference between hart signal and analog signal (4 to 20 ma)

2 Answers   Takreer,

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selection criteria of control valve? and selection criteria of actuator explain in brief?

0 Answers  

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hi this is noor in my work spot, i arranged THERMOCOUPLE in the place of RTD. (in FEED WATER tank). can i use T/C or not?

10 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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what is vfd(variable frequency drive)?type of vfd.

2 Answers  

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