Answer / carl_ellis

The answer warrants an entire discussion. See Plant
Engineering's article on troubleshooting solenoid valves
here: http://tinyurl.com/kvmefcm

Carl Ellis
Measure First

hi i want sov loop cheak from consol to field the operater given status to sov still no change, but MR room to sov ok so whats a problem and alreasy cheak all conection ok ?

2 Answers  

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what is stroke check for field instument transmetter's & AOV's

0 Answers  

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What is T4 temperature in compressor?

1 Answers  

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What is rated capacity in Control valve

3 Answers  

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generally transmitter power supply having some range(12v to 35v) but the out put(4-20 mA) must same for given input.If we vary the power supply voltage then output mA also to be change according to V=IR. Is there any voltage regulator in the transmitter ?

1 Answers  

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What is Fieldbus?

3 Answers   NSL,

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Definition of level

3 Answers  

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How to calibrate displacer type level transmitter (chemtrol make )for level measurement in hotwell , LP & HP heater ?

0 Answers   Matrix,

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How can measure flow in oil line?which type of transmitter is generally used?

1 Answers  

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what is difference between profibus and field bus?

1 Answers  

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suppose, after calibrating a transmitter we fixed it in a process line. At live zero condition the Tx shows 4.5 mA. what should we do to make the Tx show 4 mA? If we adjust zero, will it not affect the calibration?

4 Answers   ABG Shipyard,

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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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