What is loop or pigtail in an impulse line?

8 Answers   Qatar Airlines, Qatar Petroleums,

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in instrumentation why we are using 4-20mA , why not voltage ? if somebody design a instrument which works on voltage then can we use that instrument?

6 Answers  

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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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What is exact difference between the panel earthing and system earthing in DCS system. What is the value of resistence.

0 Answers  

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

1 Answers   Dodsal,

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how to commission furnace ( water heater)

0 Answers   Petrofac,

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what is the full form of psig.

8 Answers  

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EXPLAIN PROPOTIONAL INTEGRAL DERIVATIVE CONTROL ACTION?

1 Answers  

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Can we calibrate an actuator?

5 Answers   Siemens,

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Why we using 250ohm resistance during lab calibration and why not using in field in one plz define deeply???

1 Answers   Cisco,

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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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Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.

0 Answers  

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