990-04-70-01-00 Bently Central control module

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Product Details：

990-04-70-01-00 Bently Central control module

Brand：BENTLY NEVADA Model number：990-04-70-01-00

Country of origin: U.S. Product weight：0.55kg

HS code：8517623990

Product Dimensions：

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.

990-04-70-01-00 Bently Central control module

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