Why we use 250 ohm resister in series hart communicator?

3 Answers   Thermax,

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while am calibrating Drager polytron 2IR flame gas detector occured non zero status.how can i get zero status?

0 Answers   Gasco,

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what is difference between two wire &three wire pt 100 ?

3 Answers   Jindal,

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What is standard procedure of manual mapping in Radar type level transmitter?

0 Answers  

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Could anybody tell how much amps will a single input to plc will consume?

1 Answers  

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what's the reson that,Load is not same on VFD I/P and O/P Side.whenever DOL condition load is same I/P and O/P side.

2 Answers  

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The wire is disconnected from the temperature sending unit (magnetic gauge). A voltmeter connected to the wire reads 0v. What does this indicate?

2 Answers  

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What is the meaning of wet leg

0 Answers  

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Boiler flame scanner working principle?

1 Answers   Bhel,

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pt range is -45 psi to 45 psi.friends can you give answer with calculation and with linerity scale like 0%,25%,50%,75%& 100%?

1 Answers   WB,

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what is difference between profibus and field bus?

1 Answers  

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what do u mean by 2/3 soleniod valves?

8 Answers   Nile Sugar,

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