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Description

The Bently Nevada 3300/55-01-05-02-02-00-00-09-00 is a dedicated dual-channel velocity monitoring module engineered for the 3300 series machinery protection system. This unit is designed to interface with Velomitor piezo-velocity sensors to provide continuous casing vibration monitoring for critical rotating equipment, including turbines, compressors, and large motors. By processing input signals against user-defined alarm setpoints, the module ensures reliable machine protection through integrated relay logic.

Features

  • Dual-channel architecture for independent velocity monitoring.
  • Direct compatibility with Velomitor piezo-velocity sensor inputs.
  • Integrated alarm and trip relay functionality for automated machinery safety.
  • Proportional 4-20 mA output for integration with external DCS or PLC systems.
  • Configured for standard industrial safety compliance.

Applications

This module is primarily utilized in industrial environments requiring rigorous casing vibration monitoring. Typical applications include the protection of centrifugal compressors, industrial pumps, gas and steam turbines, and large-scale electric motors where velocity-based vibration analysis is critical for predictive maintenance and emergency shutdown systems.

Technical Specifications

Model 3300/55-01-05-02-02-00-00-09-00
Brand Bently Nevada
Module Type Dual Velocity Monitor
Input Compatibility Velomitor Piezo-Velocity Sensors
Outputs 4-20 mA Proportional, Alarm/Trip Relays
Operating Temperature 0 degC to +60 degC
Typical Power Consumption 1.5 W

Installation Guidelines

  • Ensure the 3300 rack is powered down before inserting or removing the monitor module to prevent electrical damage or bus errors.
  • Handle the module using standard ESD-safe practices to protect internal circuitry.
  • Verify that all field wiring for the Velomitor sensors is shielded and properly grounded to minimize EMI/RFI interference.
  • Ensure proper seating of the module in the rack slot to guarantee reliable backplane communication.
  • Check that all alarm relay contacts are correctly wired to the system's logic controller or emergency shutdown interface.

FAQ

What type of sensors does this module support?

This specific configuration is designed to work with Bently Nevada Velomitor piezo-velocity sensors.

Does this module include intrinsic safety barriers?

No, this model (suffix 00 for the barrier option) does not include internal intrinsic safety barriers.

What is the primary function of the relay outputs?

The relay outputs are used for Alert and Danger alarm conditions, allowing the module to trigger external annunciators or initiate machine shutdown sequences when vibration levels exceed programmed limits.

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