Answer / rajneesh kumar

three mode (1) on line (2) off line ( 3) bypass mode

Answer / palaniappan c

ONLINE MODE
OFF LINE MODE

what is electric motorised valve working principle.

1 Answers  

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Hi friends, from Aug 4th onwards iam getting spikes for analog inputs in our DCS for a period of 800ms. I throughly checked every thing, finally i found that the DI, DO's from MCC panels shields are terminated in the Signal Earth where Analog Input signals shields are terminated. Is there any problem with this type of termination?. i checked the induction voltage from MCC and getting around 25VAC, please suggest me in this concern. Our plant is 8months old only. DCS is Siemens Make Simatic PCS7, and the transmitters are Yokogawa make.

1 Answers  

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What skill/s does the Instrument Technician has?

6 Answers  

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What is the purpose of bypass valve across AS valve.

0 Answers   ADMA OPCO,

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why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .

0 Answers   Visa Steel,

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in split range control system we are using two control valves,but we have only one positioner and one feed back link.so how we use this one feed back link for two control valves?

2 Answers  

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what is the daily job of an instrument commissioning supervisor

1 Answers   Petrofac,

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What happen if we install my pressure transmitter below the elevation of pipe in natural gas service?

0 Answers  

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why the positioner output is 3-15psi

5 Answers  

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WHERE I CAN GET THE TRAINING SMARTPLANT INTOOLS V7 IN INDIA

0 Answers  

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Explain an adaptive / self-tuning controller’s major draw card.

0 Answers  

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describe flow nozzel principle?

0 Answers   SEWA,

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