Description
Bently 3500 53 133388-01
Technical Specifications
- Model: 3500/53 (133388-01)
- Channels: 2 independent monitoring channels
- Input Signal Range: +10.0 V to -24.0 V
- System Compatibility: 3500 Series Machinery Protection System
Functional Features
- Dedicated Overspeed Protection: Provides independent speed monitoring with hardware-based tripping logic for maximum safety.
- Flexible Configuration: Programmable for overspeed alarms, zero speed indication, and rotor acceleration alarms.
- TMR Support: Can be configured in Triple Modular Redundant setups for critical safety applications.
Application Scenarios
Widely deployed on steam turbines, gas turbines, compressors, and generators to provide primary overspeed protection and automatic shutdown.
Performance Parameters
- Measurement Accuracy: ± 20 rpm/min
- Power Consumption: 5.8 Watts (typical)
- Input Impedance: 20 kΩ (standard)
Material Composition
Constructed with high-strength, flame-retardant industrial plastics and conformal-coated internal circuit boards for superior environmental protection.
Structural Characteristics
Standard 3500 module form factor with front-panel LEDs for OK, TX/RX, and Bypass status indication, and a precision backplane connector.
Working Principle
Receives pulse signals from proximity probes or magnetic pickups, calculates the rotational speed based on the pulse frequency, and triggers hardware-based tripping when overspeed thresholds are exceeded.
Installation Requirements
Insert into an available slot in the 3500 rack. Sensor wiring must use shielded cables, and proper grounding is mandatory to prevent electrical noise interference.
Precautions for Use
This module is specifically designed for overspeed protection. It must be configured and tested according to API 670 and relevant safety standards. Regular functional testing is required to ensure trip logic integrity.
