Pls.could any one Clarify the following with an example. 1.At What condition Close on Rise and Close on Fall Pressure Switch contacts are used. 2.If Pressure is abnormal as per set pressure,if connecting Terminal of pressure switch breaks,how the voltage extends to Relay base. 3.Are these contacts come under fail safe philasaphy.

1 Answers  

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How to calibrate the flow transmitter

0 Answers  

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What is the logic a Transmitter control a Control Valve? How the signal going to the Control valve? What are systems/Panels/cables/signal used to control valve from Transmitter?

3 Answers  

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Draw a group of instruments interlocked to a Pump & Motor?

0 Answers  

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

3 Answers   Sabic, TVS,

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what is isolation Transformer???...

3 Answers   Emerson,

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What are the maximum packet size of: a) HART b) Profibus DP c)Profibus PA d) DeviceNet e) Foundation Fieldbus

0 Answers   EIT,

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The pressure class rating (such as 150 lb, 300 lb, etc.) of a line appears in the form of ________________ in the Line Number (or Line Designation) on a P&ID

1 Answers  

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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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Can all intrinsic safe transmitters are provided with inbuilt zener barriers? why

2 Answers  

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what do you know about Foundation Fieldbus?

1 Answers   CCIE,

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what is the input of ph sensor and meter during the calibration time and what is the output?

1 Answers   Sabic,

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