Bently Nevada|3500/25 125800-02|Keyphasor I/O Module
Bently Nevada 3500/25 125800-02 Keyphasor I/O Module
Description
The Bently Nevada 3500/25 125800-02 is an Enhanced Keyphasor I/O Module designed for precise shaft timing and phase reference measurements in the 3500 Machinery Protection System
Features
- Supports both proximity probes and magnetic pickups
- TMR-compatible for redundant configurations
- Field-upgradeable firmware and asset management capabilities
Technical Specifications
Power Consumption
- 3.2 W typical
Input Range
- Non-isolated: +0.8V to -21.0V
- Isolated: +5V to -11V
- Minimum speed: 200 rpm (3.3 Hz) for magnetic pickups
Frequency Response
- Input: 1–1,200,000 cpm (0.017 Hz–20 kHz)
- Output: 1–99,999 cpm (0.017 Hz–1667 Hz)
- Accuracy:
- ±1 cpm (0.017–100 Hz)
- ±1% (501 Hz–20 kHz)
Signal Conditioning
- Auto-threshold: 2 Vpp min, 120 rpm (2 Hz) min
- Manual threshold: 500 mVpp min, adjustable 0 to -20V
- Hysteresis: 0.2–2.5V selectable
Environmental Limits
- Operating temperature: -30°C to +65°C (-22°F to +150°F)
- Storage temperature: -40°C to +85°C (-40°F to +185°F)
- Humidity: 95% non-condensing
Physical Dimensions
- Main Module: 119.9 × 24.4 × 256.5 mm (4.72 × 0.96 × 10.10 in), 0.34 kg (0.76 lb)
- I/O Module: 241.3 × 24.4 × 103.1 mm (9.50 × 0.96 × 4.06 in), 0.46 kg (1.01 lb)
Bently Nevada|3500/25 125800-02|Keyphasor I/O Module



Bently Nevada|3500/25 125800-02|Keyphasor I/O Module
Bently Nevada 3500/25 125800-02 Keyphasor I/O Module
Description
The Bently Nevada 3500/25 125800-02 is an Enhanced Keyphasor I/O Module designed for precise shaft timing and phase reference measurements in the 3500 Machinery Protection System
Features
- Supports both proximity probes and magnetic pickups
- TMR-compatible for redundant configurations
- Field-upgradeable firmware and asset management capabilities
Technical Specifications
Power Consumption
- 3.2 W typical
Input Range
- Non-isolated: +0.8V to -21.0V
- Isolated: +5V to -11V
- Minimum speed: 200 rpm (3.3 Hz) for magnetic pickups
Frequency Response
- Input: 1–1,200,000 cpm (0.017 Hz–20 kHz)
- Output: 1–99,999 cpm (0.017 Hz–1667 Hz)
- Accuracy:
- ±1 cpm (0.017–100 Hz)
- ±1% (501 Hz–20 kHz)
Signal Conditioning
- Auto-threshold: 2 Vpp min, 120 rpm (2 Hz) min
- Manual threshold: 500 mVpp min, adjustable 0 to -20V
- Hysteresis: 0.2–2.5V selectable
Environmental Limits
- Operating temperature: -30°C to +65°C (-22°F to +150°F)
- Storage temperature: -40°C to +85°C (-40°F to +185°F)
- Humidity: 95% non-condensing
Physical Dimensions
- Main Module: 119.9 × 24.4 × 256.5 mm (4.72 × 0.96 × 10.10 in), 0.34 kg (0.76 lb)
- I/O Module: 241.3 × 24.4 × 103.1 mm (9.50 × 0.96 × 4.06 in), 0.46 kg (1.01 lb)