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

hi friends,can u send me the link for downloading Allen_bradley_RsLogix_500_Pro_V_7.0 software with activation file.or how can i find activation file for this.

2 Answers  

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0 Answers   Jindal, Rosemount,

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what is corrective maintenance , explain with difination

1 Answers   Bapco Bahrain Petroleum Company,

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capillary type tranmitter using remote seals and capillary tubes filled with liquid of known of known density so if you wanna callibrate it just close block valve just before capilary @ high side & connect druck apply it's calibrated range pressure as normal calibration ensure low side block valve must be closed & if you asking commissioning so this is not a DP type pressure tx so simple if you wanna put in servie this tx just open high side block valve & than low side block same way i do it but still transmitter showing -13 ma.just tell me what i want to do ?

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i m passed my engineering in 2010 in instrumentation and control engineering. my question is can i apply for software jobs or vacancies.??????????? plz give me answer soonnn......

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4 Answers   Focus,

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thru which signal does µP communicate with memory

3 Answers  

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