why we set -10 volt in vibration sensor output,why not +10 volt

3 Answers   Sabic, TVS,

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why we use by pas on a positioner? When can a by pass be not used on a positioner ?

1 Answers  

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How does a redundant controller comes in line when the main controller fails??

3 Answers   Yokogawa,

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For an Instrumentation Engineer, is there any effect on Instruments of safety zones like zone0, zone1, zone2. As an instrumentation Engineer, what we have to consider or remember while working in these areas.( zones 0,1,2).

1 Answers  

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Can anyone send most commonly asked interview question in Oil & Gas industry

0 Answers  

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how can we calibrate RADAR LEVEL transmitter 0% to 100%

3 Answers   Chevron Phillips, Honeywell,

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what is a mapping in plc & dcs

1 Answers   Arctern, ARM Cement,

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control valve in manual/auto mode huntting checked spring tention also it is ok.positioner also good condition & incoming inst air line also constant pr.kindly give us correct answer?

5 Answers   Madhu Power,

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Thermocouple is a transducer but rtd is not transducer why? Both taking heat as a input and giving mv

7 Answers  

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what is use single seated and double seated valve?

2 Answers   Doha Petroleum Construction DOPET,

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How to convert Differential pressure to flow in TPH

0 Answers   Chettinad, ELCO,

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who to convert dc to ac

7 Answers   ONGC,

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