Answer / honey sekar

Because OF that Bently nevada probe proximitors are made by
PNP principle ,some of proximitor's we are using +24 vdc
which was made by NPN principle in few plant's

Answer / taha

to generate frequency required -24v as minimum

Answer / s n vyas

For High speed rotating equipment only, we are using this negative voltage for vibration sensor. This negative voltage is always set as gap voltage between the sensor and surface of the rotating equipment. This gap voltage is always set as -10Vdc. This because of Ratio frequency, which is created by the controller of vibration sensor. These frequencies are generated under negative voltage only. Which is also varies with respect to eddy current flow. The amplitude of this ratio frequency is measured as vibration. For your information, Noise level is very less in negative voltage compare than positive voltage which will not affect the sensitive range of measurement of vibration. For your information:-This concept is used in Bently Nevada vibration monitoring system.

Answer / ashok

1. Equipment needs safe
2. If cable damaged the prox- tip not to make short with
card which convert in to mA

pressure gauge measure static pressure or dynamic pressure?

3 Answers  

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i want the equation of this question. Tranmitter range is 120 mmwc and dcs flow range is 1700 nm3/hr. if i want to change dcs range from 1700 to 2400 nm3/hr then how much dp i have to enter in transmitter

2 Answers   GMR,

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What is Integral and Derivative control?

5 Answers   Qatar Petroleums,

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Draw bode plot of any transfer function. Why is plotting bode necessary?

0 Answers   L&T, STS,

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which instrument is most commonly used to observe the external features of a grasshopper's abdomen?

1 Answers  

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What is the expansion of RADAR? How it works?

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typical loop drawing of a simple feedback control comprising of one transmitter and one control

0 Answers  

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Explain, and give a real-world example of MODULATING control

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2 Answers  

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why we use impulse line of flow transmitter at 45 deg. angle both side of orifice plate.

0 Answers  

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What the basic of communication?

4 Answers   Schneider,

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