Product Overview

• PN: 3500/53, Part No: 133388-01
• Brand: Bently Nevada
• Series: 3500 Machinery Protection System
• Type: Electronic Overspeed Detection Module

• Function: It receives pulse signals from proximity probes or magnetic pickups to monitor real-time rotating speed of critical rotary equipment. It supports redundant voting logic to trigger fast overspeed trip protection, conforming to industrial safety standards to avoid unit runaway damage.

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Core Features

1. Supports 2-out-of-2 or 2-out-of-3 redundant voting configuration to eliminate single-point failure risks
2. Fast response trip design, meets API 670 safety specification for turbomachinery protection
3. Built-in sensor power supply and signal conditioning circuit, compatible with mainstream speed sensors
4. Hot-swappable rack mounting with front LED indicators for status and fault quick diagnosis

5. Equipped with buffered signal output for on-site waveform debugging and signal verification

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Technical Specifications

• Input Signal: Proximity probe, magnetic pickup pulse signal
• Input Voltage Range: +10V ~ -24VDC
• Power Consumption: 8W
• Operating Temperature: -40℃ ~ +70℃
• Net Weight: 0.82kg
• HS Code: 8538900000
• Certifications: CE

• Product Status: Discontinued, supplied with fully tested surplus modules

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Compatibility

• Matched Device: Standard Bently Nevada 3500 series rack
• Supporting Software: 3500 rack configuration software, System 1 monitoring platform

• Not Compatible: Third-party monitoring racks and non-3500 series protection systems

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Application

1. Redundant overspeed safety interlock for steam turbines, gas turbines and centrifugal compressors in power and petrochemical industries
2. Emergency trip protection to prevent equipment damage caused by overspeed runaway faults
3. Retrofit and spare replacement for legacy 3500 machinery protection monitoring systems