Answer / chandramauli sinha

Dry contact is volt free contact. for e.g- relay contacts .

Wet Contact is voltage at the relay contacts.

Answer / jith

dry contact is the one which doesnot have internal soure of
energy

is motorized valve closed when power shutoff?

0 Answers   Unilever,

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why we are using pnp npn for sensors is there any other type?

1 Answers   CGL,

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why 4-20 mA signal is preferred over a 0-10V signal

17 Answers   Sofcon,

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Why ac supply load cell is used? Can we use the dc supply load cell?

0 Answers  

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wht is dcs architecture ? can u give example?

3 Answers  

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suppose in dcs range of a flow transmitter is 10t/hr what is dp for 50% in 2500mmwc

6 Answers   Chevron,

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Anybody can tell me  how to convert mmHg2o /psi to scfm  please give me formula of conversion

0 Answers   Samsung,

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what is the T/C & RTD mesuremaint?

3 Answers  

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HOW CREATED LP & HP PRESURES IN DRUM FOR DRUM LEVEL MEASUREMENT!

0 Answers  

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Tyes of interface level measurement and how to use that technique for interface level measurement,

0 Answers  

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the whole paper was based on Transducers..questions like define repeatability, error,accuracy,precision..den there were many q. on the conversion of Pa to mmHg and other units.. also..der wer few Q. on some level sensors(with diagram)

0 Answers   GNFC,

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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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