what is plc?

27 Answers   HPCL, KRL, Noor Company, Petrochemicals, SS Automation,

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what is PM/CM/RCM?

2 Answers   Emco,

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How many loops are there in the power plant? how many closed & open loop in the power plant ? Please give me the exact clarification?

2 Answers   Lanco, Reliance,

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My rtd working well at the same time r/i converter is not working properly.when power is given to rtd..it is giving 30mA and getting 2.4 mA if i remove the compensate leads No matter how many ohms.why it is happening like so?what is the solution?rtd range-0-200deg c& 4-20 mA o/p.please give me solutiin anyone......

1 Answers  

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on which principle control valve works?

3 Answers   Lupin, Reliance,

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steam drum level transmitter calibration procedure? with example?

1 Answers  

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what is instrument philosophy

0 Answers   United Automation,

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In dcs contol valve parameters showing like this Gain=1 or 2 , ti=7 sec, td=20sec. But temp,pressure,level control valves we are using in which type parameter side using ti,td clearly tell me

1 Answers  

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Describe how to use megger to measure the earth resistance and insulation resistance

0 Answers  

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

1 Answers   Sabic,

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Explain the difference between mmwc and mmwg?

0 Answers  

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