why do 4 mA serves as 0% not 0 mA?

10 Answers  

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what is reset windup in integral control?

6 Answers   Honeywell,

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What is inside the PLC panel? How does instruments communicate to DCS computer via PLC? What is the type of wiring in PLC connections? Please answer... Thanks

1 Answers  

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What is the three element? And how it work?

1 Answers  

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Hi friends, from Aug 4th onwards iam getting spikes for analog inputs in our DCS for a period of 800ms. I throughly checked every thing, finally i found that the DI, DO's from MCC panels shields are terminated in the Signal Earth where Analog Input signals shields are terminated. Is there any problem with this type of termination?. i checked the induction voltage from MCC and getting around 25VAC, please suggest me in this concern. Our plant is 8months old only. DCS is Siemens Make Simatic PCS7, and the transmitters are Yokogawa make.

1 Answers  

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How to convert Differential pressure to flow in TPH

0 Answers   Chettinad, ELCO,

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what is metal of piston ring

0 Answers   MahaGenco,

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what is the reason for flow fluctuations happen on differential flow transmitter during in service

2 Answers  

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please give me the syllabus and sample questions if possible for Instrumentation for Vizag Steel plant MT (Trainee) 2009 exam

1 Answers   Pedvak, Steel Plant, Vizag Steel,

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key exchanges in wpa,wpa2,tls

0 Answers  

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what is difference between positioner and position transmitter in control valve

2 Answers  

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open tank and close tank leavel transmiter about range and calibration

0 Answers  

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