Answer / vicoy

Wet Contact has line supply voltage either AC or DC
Dry Contact is open and closed continuity

Answer / saravanakumar

wet contact is a contact which is not potential free. But dry contact is a potential free contact and the contact rating can be either 24VDC, 230VAC or 110VAC.

how can we tune a PID. If it is by zeiger nichols method..please explain briefly with help of an example.

0 Answers   KNPC,

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what is diff between the motor and pump

10 Answers   HCL,

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whats the problem will arrise if we rotate the hosing screw of the differential pressure transmitter?

1 Answers  

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how will you check torque value during Factory acceptance Test for control valve/ESD ON/OFF VALE how will you confirm this torque value is being correct, Which document will you be refer.

0 Answers  

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Specify eight technical requirements that you would consider important, when deciding upon a particular control valve?

0 Answers  

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please give me combustion cntrl interlock details? if possidle drawing also?for this one is there any website ?

1 Answers  

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Basically iam Instruemntation Engineer, but Iam interested in Instruments design engineering, so plz guide, is there any course, training or Softwres to become Instrument design engineer??.

0 Answers   Honeywell, Tata Steel Limited,

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Could anybody pls give ans of boiler 3 element control system?

5 Answers   Qatar Petroleums,

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1.what is the role of proportional comtroller in pid controller?2.How do u calibrate the control valve?

3 Answers   Bently, IOCL,

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what about your moleg in pogrees with company

0 Answers   MahaGenco,

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defination of plc

14 Answers   ABC, Sofcon,

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Calibration procedure for Electro magnetic Flow meter

0 Answers   Reliance,

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