Why using negative voltage in vibration measurement?

2 Answers  

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As an industrial instrument technician what we have to know?

3 Answers  

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what is sinking and sourcing....

2 Answers  

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Why any transmitter signal is 4-20 mA only Why is started from lower range 4 mA and upper range is 20mA.

5 Answers   Edac,

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What are the error values can accepted in flow transmitter calibration?could u give any formula for this?

0 Answers   Hamsco,

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when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?

0 Answers  

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What is mean by Adapter block and net block?

1 Answers   Hospira,

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Why Bently Nevada use negative voltage for vibration probes?

4 Answers  

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i am going to attend ongc exam this coming june for Graduate Engineer Trainee post if anybody knows the question pattern or have experience plz share it with me

3 Answers   ONGC,

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How a rtd work, and what volts/current goes to a RTD to measure the resistence?

1 Answers   DVC,

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How can you add value to this Industry if offered the job?

0 Answers   SNS,

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What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.

0 Answers  

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