There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

0 Answers  

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What is purpose of shield wire?

1 Answers   IFFCO,

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control valve in manual/auto mode huntting checked spring tention also it is ok.positioner also good condition & incoming inst air line also constant pr.kindly give us correct answer?

5 Answers   Madhu Power,

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Hi i am aneesh, done btech in applied electronics & instrumentatiin. And then i took mba in finance & marketing.After that i got placement in finance co and worked there for 3.5 yrs.Now i wanted to come back to engineering job.But without engg experience, i may not able to find an opening.i have done a course related to flow meters and ite calibrations. Kindly suggest where should i try to get a job?

0 Answers   Qatar Petroleums,

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what is positive displacement meter.

1 Answers   Takreer,

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What is the PLC configuration in Cement industry?

0 Answers   IMCO, Maha Cement,

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what is the principal of operatio of dc motor

1 Answers  

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what is difference between profibus and field bus?

1 Answers  

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Identification of ss fittings, pilot valves, relief valve.

0 Answers   CCIE,

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why we use by pas on a positioner? When can a by pass be not used on a positioner ?

1 Answers  

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what are the levels of automation?

1 Answers  

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How Control valve sizing is done?

3 Answers  

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