Description
Bently 3500/50
Technical Specifications
- Module Type: 2-Channel Tachometer Module
- Channel Count: 2 independent channels
- Slot Placement: Any available monitor slot
- Input Signal Range: +10.0 V to -24.0 V
Functional Features
- Versatile Speed Monitoring: Configurable for speed monitoring, speed band alarms, zero speed indication, rotor acceleration alarms, and reverse rotation indication.
- Keyphasor Generation: Can be configured to provide a Keyphasor signal to the 3500 rack backplane, eliminating the need for a separate Keyphasor module.
- Peak Hold Function: Stores the highest speed, highest reverse speed, or number of reversals reached since the last reset.
Application Scenarios
Widely deployed across all types of rotating machinery, including motors, pumps, fans, and turbines, to monitor operational speed and prevent overspeed or zero-speed conditions.
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
Manufactured with high-reliability industrial electronic components and conformal-coated PCBs for environmental protection.
Structural Characteristics
Full-height module with front-panel buffered sensor outputs featuring short-circuit and ESD protection. Includes status LEDs for operational diagnostics.
Working Principle
Counts pulses from proximity or magnetic sensors over a precise time interval to calculate RPM. It processes these pulses to determine acceleration and direction, triggering alarms when configured thresholds are exceeded.
Installation Requirements
Install in any available monitor slot. Sensor cables must be properly shielded to prevent electrical noise from affecting speed calculations.
Usage Notes
If configured to generate a Keyphasor signal, ensure the rack configuration software is set to recognize the 50 module as the primary timing source.
