How we can check the 2 wire proxy switch? & how it is connected to DI MODULE OF PLC?

0 Answers  

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what's the criteria of using over range protector when installing Pressure Gauge

1 Answers  

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in pressure gauge inside why we are using the glasarin oil?

4 Answers  

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Why DP level transmitter preferred for closed vessels and Radar level transmitter for open tanks??

2 Answers  

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What is loop checking ?

10 Answers   Kharafi National, Petrofac, Samsung,

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Vibration probe working principle?

1 Answers   Tata Steel Limited,

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On drum level, why we are using air to close Control valve?

4 Answers   L&T,

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While preparing the graphic diagrams trend display, 3 types of trends are prepared by Yokogawa system vender. These are for process variable, manipulated variable & set point variable. Why these 3 trends are required? Explain the purpose of these 3 trends.

1 Answers  

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HOW TO CONVERT 0-60KG/CM2 PRESSURE TRANSMITTER TO A LEVEL TRANSMITTER? CAN WE ABLE TO DO IT? IF YES HOW TO DO IT BY USING HART?

3 Answers  

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What is the working principle of oxygen analyzers(zirconium oxide type) used in CFBC boilers?

3 Answers   Bajaj, Kohinoor, Wartsila,

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Im working in a shopping center, it is also hotel and office building, two towers exactly and someone is proposing a PLC control for the HVAC system, but Im thinking of a DDC control system. in this case what is the difference between PLC and DDC control?

1 Answers  

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What is Process portal A(PPA)?

1 Answers   ABB,

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