Description
Bently 3500/53-03-00
Technical Specifications
- Module Type: TMR Overspeed Detection Module
- Configuration Code: 03-00 (TMR Configuration)
- Channel Count: 3 redundant overspeed channels
- Slot Placement: Any available monitor slot
Functional Features
- Triple Modular Redundancy: Provides three independent overspeed detection channels with 2-out-of-3 voting logic.
- Ultra-High Reliability: Eliminates single points of failure in overspeed protection.
- Safety-Critical Protection: Designed for applications where false trips or missed trips are unacceptable.
Application Scenarios
Mandatory for highly critical machinery protection systems, such as large steam turbines, nuclear auxiliary pumps, and compressors where safety integrity is paramount.
Performance Parameters
- Operating Temperature Range: -30°C to +65°C
- Storage Temperature Range: -40°C to +85°C
- Humidity Tolerance: 95% non-condensing
Material Composition
High-reliability industrial components designed to meet stringent safety integrity levels.
Structural Characteristics
Full-height module with front-panel LEDs indicating TMR voting status, communication health, and fault conditions.
Working Principle
Receives speed signals from three redundant sensors, executes a 2-out-of-3 voting algorithm, and triggers alarms only when validated overspeed conditions are detected.
Installation Requirements
Install in an available monitor slot. Requires a fully configured TMR rack with three redundant speed sensors.
Usage Notes
Standard overspeed modules cannot be used in TMR racks. The TMR module must be properly configured via the 3500 Rack Configuration Software to enable the voting logic.




