Description

The Bently Nevada 133388-02 is a 3500/50 Tachometer Module designed for the 3500 Machinery Protection System. This module is a four-channel device that accepts input from proximity transducers or magnetic pickups to measure shaft speed, rotor acceleration, and rotor direction. It is a critical component for monitoring rotating machinery, providing essential speed data for protection and control functions within the 3500 rack environment.

Features

• Four-channel monitoring capability for speed and acceleration.
• Compatible with standard Bently Nevada proximity transducers and magnetic pickups.
• Provides proportional DC voltage outputs for speed and acceleration signals.
• Supports programmable alarm setpoints for overspeed and underspeed protection.
• Integrates directly into the 3500 rack backplane for power and communication.

Technical Specifications

Installation Guidelines

• Ensure the 3500 rack is powered down before inserting or removing the module to prevent electrical damage.
• The module must be installed in a designated slot within the 3500 rack, ensuring proper alignment with the backplane connector.
• Use shielded cabling for all transducer inputs to minimize electromagnetic interference (EMI).
• Ensure proper grounding of the 3500 rack chassis to a clean earth ground to maintain signal integrity.
• Handle the module using ESD-safe practices to protect internal circuitry from electrostatic discharge.

FAQ

Is the 133388-02 module still in production?

No, this specific model has been discontinued by the manufacturer. We provide high-quality surplus or refurbished units to support legacy system maintenance.

What is the primary function of the 3500/50 module?

The 3500/50 Tachometer Module is used to monitor machine speed and acceleration, providing trip and alarm signals to prevent damage to rotating equipment in the event of overspeed conditions.