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Bently 3500/53 133388-01

Technical Specifications:
  • Channels: 1 speed input
  • Input Range: +10 V to –24 V
  • Input Impedance: 20 kΩ
  • Speed Range: 0 – 100,000 RPM
  • Accuracy: ±0.1 %
  • Response Time: 1 ms for overspeed trip
  • Relay Outputs: 4 SPDT, 5 A @ 250 VAC
  • Analog Output: 4-20 mA proportional to RPM
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Detailed content

  • Power: 24 VDC, 8 W max
  • Operating Temperature: –40 °C to +85 °C
  • Dimensions: 222 × 178 × 76 mm
  • Weight: 2.2 kg
  • Agency Approvals: CE, UL, ATEX Zone 2, SIL 2 capable
Functional Features:
  • Peak-speed latch records highest RPM reached
  • Redundant 2oo2 or 3oo2 voting when multiple modules are used
  • Front LEDs for OK, Alert, Danger, Relay status
  • Hot-swappable without rack shutdown
  • Configurable via 3500 Rack Configuration Software
Application Scenarios:
  • Gas-turbine overspeed protection – trips fuel valve when 11,200 RPM is exceeded
  • Steam-turbine acceleration monitoring – prevents rapid load rejection run-away
  • Offshore platform fire-water pump – ensures pump starts and stays within speed window during emergency

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