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Bently Nevada 3500/42M Proximitor Seismic Monitor | 176449-02

Product Description

The 3500/42M (176449-02) is a sophisticated four-channel machinery protection monitor designed for the Bently Nevada 3500 rack system. It provides continuous surveillance by processing inputs from Proximitor and seismic transducers to evaluate parameters such as radial vibration, thrust position, and eccentric motion. By comparing real-time data against user-defined setpoints, the 176449-02 ensures immediate alarm triggering and machinery protection to prevent catastrophic failure.

Technical Specifications

  • Input Signals: Proximity, Acceleration, Velocity, and Seismic transducers

  • Channel Density: 4 channels per module

  • Signal Conditioning: Internal high-precision integration and filtering

  • A/D Conversion: 24-bit Sigma-Delta

  • Accuracy: ±0.5% of full-scale range

  • Frequency Response: 0.5 Hz to 30 kHz (application dependent)

  • Sampling Rate: High-speed digital signal processing up to 10 kHz

  • Output Interface: 4-20 mA proportional outputs and buffered transducer signals

  • Communication: Proprietary backplane interface and RS-485 via I/O modules

  • Operating Temperature: -30°C to +65°C (-22°F to +150°F)

  • I/O Termination: Internal terminations for simplified field wiring

Advanced Monitoring Functions

The 3500/42M (176449-02) supports diverse monitoring configurations, including Shaft Relative Vibration, Axial Position, and Differential Expansion. It utilizes advanced filtering algorithms to eliminate signal noise, ensuring that only valid mechanical anomalies trigger the alarm logic. This module is critical for steam turbines, centrifugal compressors, and large induction motors.

Frequently Asked Questions

How does the 176449-02 handle transducer power?The module provides regulated power directly to the transducers via the I/O module, eliminating the need for external power supplies for standard proximity probes.

Can this monitor be used for SIL applications?Yes, the Bently Nevada 3500 series, including the 3500/42M, is typically certified for use in functional safety systems up to SIL 2 levels.

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