why the SCAN time of DCS is more & that of PLC is less? if the SCAN time of DCS then why we use DCS.

4 Answers  

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why metallic housing is provided of solenoid valve.

1 Answers   HPCL,

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what are the steps to follow force a particular input or out put from ics triplex esd system?

1 Answers  

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1 How to calculate dp transmitter steam and water? 2 impulse line for liquid steam and gas

1 Answers   Sitara Chemical Industries,

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when the instrument tapping on pipe line is located below and transmitter is located above the tapping point for liquid service transmitter, what should we do, is there any additional drain valve is required??

0 Answers  

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1. For Steam drum level signal, why do we compensate with drum pressure signal? 2.For main steam Flow signal is comensated with main steam temperature signal and main steam pressure signal why?

0 Answers  

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What is loop checking ?

10 Answers   Kharafi National, Petrofac, Samsung,

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Calibration procedure for water rotameters

0 Answers   HPCL,

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Calibration procedure for electro magnetic flow meter

0 Answers  

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if my 6 kva UPS gives 20 min. backup at 100 % load, then at 25% load what is the backup time?

17 Answers  

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What is the minmum distance between the electrical panel and Instrument panel

1 Answers   Dodsal,

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Waht is surge in compressors and how to control it?

1 Answers   DEWA,

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