3500/25 Bently Nevada Enhanced Keyphasor Module

3500/25 Bently Nevada Enhanced Keyphasor Module

Product Dimensions：

The 3500/25 Enhanced Keyphasor Module is a half-height, two-channel module  used to provide Keyphasor signals to the monitor modules in a 3500 rack. The  module receives input signals from proximity probes or magnetic pickups and  converts the signals to digital Keyphasor signals that indicate when the  Keyphasor mark on the shaft coincides with the Keyphasor transducer. The 3500  Machinery Protection System can accept up to four Keyphasor signals for  normal configuration and up to eight Keyphasor signals in a paired  configuration.

Inputs  Power  Consumption  3.2 Watts typical.  

Signal  Each Keyphasor Module accepts  up to two transducer signals from  proximity probe transducers or  magnetic pickups. The input  signal range is +0.8 V to -21.0 V  (Non-Isolated I/O modules) or +5V  to -11V (Isolated I/O modules).  Signals exceeding this range are  limited internally by the module.  Passive magnetic pickups require  a shaft rotative speed greater  than 200 rpm (3.3 Hz).

Transducer Conditioning  Auto Threshold  Minimum signal amplitude for  triggering is 2 volts peak to peak  and minimum frequency is 120  rpm (2 Hz).

Manual  Threshold  Use for any input above 0.017 Hz  (1 rpm for 1 event/revolution).  User-selectable from 0 to -20  volts dc. Minimum signal  amplitude for triggering is 500  millivolts peak to peak.  

The Enhanced Keyphasor Module is an improved 3500 system module. It offers  expanded Keyphasor signal processing capabilities over the previous design  while maintaining complete downward-compatibility in terms of form, fit and  function with existing Keyphasor modules for use in legacy systems. The  Keyphasor module, PWA 125792-01, is completely replaced by the more recent  149369-01 module.

The Isolated Keyphasor I/O module is designed for applications in which the  Keyphasor signals are tied in parallel to multiple devices and require isolation  from other systems, such as a control system. The Isolated I/O module was  created specifically for Magnetic Pickup applications but is compatible with and  will provide isolation for Proximitor* applications as long as an external power  supply is provided. Note that the intent of this I/O module was primarily to  measure shaft speed and not phase. The module can provide phase  measurements, but this I/O introduces a slightly higher phase shift than the NonIsolated I/O version. Figure 1 shows the amount of phase shift that the Isolated  I/O modules will add at different machine speeds.  Enhanced product features include generation of once-per-turn event signals  from multi-event-per-turn inputs, field-upgradeable firmware, and asset  management data reporting.

We have the same series of models in stock.  If you don't find the model you need, please contact us and we will provide you with an official quotation！

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Colour：new                  Warranty: 12 months

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