Bently Nevada|129974-01|Monitoring Module

Bently Nevada 129974-01 Monitoring Module

Description
A Bently Nevada 3500 series machinery protection module designed for critical vibration, position, or speed monitoring in industrial applications.

Features

• High-accuracy signal conditioning and alarm triggering
• Compatible with proximity probes and other industrial sensors
• Supports redundant configurations for fail-safe operation

Technical Specifications

Inputs

• Signal Range
  • Typically accepts ±10 V or 4–20 mA signals from sensors
  • Applicable for proximity probes and industrial transducers
• Input Impedance
  • ≥10 kΩ (standard for 3500 series modules)
• Transducer Power
  • -24 Vdc
  • 40 mA max per channel
  • Complies with 3500 system standards

Signal Processing

• Frequency Response
  • Configurable filters
    • 4 Hz–4 kHz for vibration
    • 0.017 Hz–20 kHz for speed
• Accuracy
  • ±0.33% typical
  • ±1% max for static values (e.g., gap, direct)
• Alarm Delay
  • Danger: 0.1–60 sec
  • Alert: 1–60 sec
  • Fully programmable

Outputs

• Buffered Signals
  • 550 Ω impedance
  • Short-circuit protected
• Front Panel LEDs
  • OK
  • TX/RX
  • Bypass status indicators

Environmental

• Operating Temperature
  • -30°C to +65°C (standard I/O)
  • 0°C to +65°C (barrier I/O)
• Humidity
  • 95% non-condensing

Certifications

• Hazardous Areas
  • ATEX II 3G
  • cNRTLus Class I Div 2
  • CSA
• Compliance
  • FCC Part 15
  • EN 61000-6-2/4
  • EN 61010-1
  • RoHS

Physical

• Dimensions
  • 241.3 mm × 24.4 mm × 241.8 mm
  • 9.5" × 0.96" × 9.52"
• Weight
  • 0.91 kg (2.0 lb)