how in the 2 - wire transmitter, 24v supply and the 4ma signal gets in the same path?

1 Answers   Yokogawa,

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how pressure reduce through pressure control valve? suppose we have to reduce 20 kg pressure to 10 kg pressure , then what we do ? open the valve or close the valve , initially it is 20 % is upon ( for ur knowledge ).

4 Answers   TATA,

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What is the role of P(Protional), I(Integral) and D (Derivative) in PID Controller?

9 Answers  

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I will attend an interview with GasGas company for a position of Instrument Technician ( Offshore )in next month can anyone tell me what questions they will ask. Thanks in advance.

0 Answers   RasGas,

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what is the working principle of ABB gas analyser of kiln in cement industries

4 Answers  

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HOW CAN I CONNECT ROSEMOUNT 3300 LEVEL TRANSMITTER TO Allen-Bradley SLC500

1 Answers  

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What is difference between reset and initialization in industrial automation?

1 Answers   Marafiq,

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what is the input of digital RPM indicator during the calibration time?

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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What is standard of DCS panel design?and what is step of DCS panel design?wiring and type of connector(screw or DB connector)

0 Answers  

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what is Micro-switch and where it is used......?

7 Answers  

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A DP transmitter is used to measure the level of an open tank. The drain line of the tank is connected to a control valve, and is configured as, if the level of the tank is 90% the valve should get open 10%. And if the tank level is 10%, the valve should get open 90%. Draw wiring diagram and explain how to configure DP transmitter and control valve using HART communicator. If the span error at output is 1%, what will be the %opening of the control valve at 60% level of the tank?

0 Answers  

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