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3500/92

Bently Nevada 3500/92
Dual-Channel Vibration Monitor

Core Features:
• 2 Independent Inputs (proximity/velocity/accelerometer)
• 0-25.4mm (1") Measurement Range
• 4-20mA + Modbus Outputs

Key Specs:
✓ 0.5Hz-10kHz Frequency Response
✓ ±1% Accuracy
✓ 4 Configurable Alarms per Channel

Protection Functions:

Dynamic Gap Monitoring

Sensor Fault Detection

Phase Reference Output

Applications:

Turbine/Compressor Monitoring

Rotating Machinery Protection

Predictive Maintenance

Compliance:
• API 670 5th Ed.
• SIL 2
• DNV-GL Marine

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Bently Nevada 3500/92
Dual-Channel Vibration Monitor Module

Key Specifications:
• Input Channels: 2 independent vibration/position inputs
• Signal Types:

Proximity probe (0.5-24V DC)

Velocity sensor (2-20mA AC)

Accelerometer (IEPE)

Measurement Parameters:
✓ Vibration Range: 0-25.4mm pk-pk (0-1 inch)
✓ Frequency Response: 0.5Hz-10kHz (±3dB)
✓ Accuracy: ±1% of full scale
✓ Resolution: 0.1μm

Protection Functions:

4 Configurable alarm setpoints per channel

Dynamic gap voltage monitoring

Sensor fault detection

Phase reference output

Output Options:
• 4-20mA (2 channels, isolated)
• RS-485 Modbus RTU
• Relay contacts (4 alarm + 2 fault)

Electrical Specifications:

Power Supply: +24VDC ±10%

Load Capacity: 600Ω @ 24VDC

Isolation: 1500V AC

Environmental Ratings:

Operating Temp: -40°C to +70°C

Humidity: 5-95% non-condensing

Protection: IP20 (rack-mounted)

Certifications:
• API 670 5th Edition
• SIL 2 (IEC 61508)
• DNV-GL Marine Type Approved

Typical Applications:

Turbine shaft vibration monitoring

Compressor bearing protection

Pump vibration analysis