Description
Bently Nevada 3500/42-07-01
Technical Specifications:
- Module Type: Full-height, 4-channel configurable monitor
- Input Signal Range: -10V DC to +10V DC
- Power Consumption: 7.7 watts typical
- Sensor Power Supply: -24V DC
- Resolution: Up to 24-bit
- Frequency Response: Up to 1 kHz (60,000 cpm)
- Input Impedance: 50 kΩ effective (bus-type TMR I/O channels in parallel to one sensor)
- 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
- Agency Approval: CSA/NRTL/C certified
Functional Features:
- Identical measurement and processing capabilities to the 3500/42-07-00
- Configurable for radial vibration, axial position, differential expansion, eccentricity, acceleration, velocity, and absolute shaft vibration
- Channels programmed in pairs
- Differential signal processing for absolute shaft vibration measurement
- Built-in automatic calibration
- Up to 24-bit resolution
- CSA/NRTL/C agency approval for use in certified installations
Application Scenarios:
- Large steam turbine and gas turbine absolute shaft vibration monitoring
- Applications requiring CSA/NRTL/C agency approval
- Power generation, petrochemical, and metallurgical industries
- Compressor, pump, and fan vibration protection
Performance Parameters:
- Channel count: 4 channels per module (programmed in pairs)
- Measurement accuracy: ±0.5% full scale
- Vibration measurement range: 0–1000 μm peak-to-peak
- Displacement measurement range: 0–2000 μm
- Frequency response: 0.5–1000 Hz (vibration), 0–100 Hz (displacement)
Material Composition:
- High-reliability electronic components on multi-layer PCB
- Metal module enclosure with conformal coating
- Gold-plated backplane edge connectors
Structural Features:
- Full-height module form factor
- Front panel with OK, TX/RX, and Bypass LED indicators
- Rear I/O module with internal terminal connections for absolute shaft vibration sensors
- Plug-in design compatible with any accessible rack slot
Working Principle:
Identical to the 3500/42-07-00 — receives analog signals from sensors, performs differential signal processing to extract casing vibration from relative shaft vibration, calculates absolute shaft vibration, compares against alarm setpoints, and drives alarm and analog outputs accordingly.
Installation Requirements:
- Install the main module in any accessible full-height rack slot
- Install the corresponding I/O module in the rear slot
- Configure channel types, measurement functions, alarm setpoints, and filter parameters via 3500 Rack Configuration Software
- Connect sensor cables to the I/O module internal terminals
Usage Notes:
- Channels are programmed in pairs; Channels 1&2 and Channels 3&4 can each perform a different measurement function
- The module ships unconfigured from the factory — configuration is performed after installation
- For TMR (Triple Modular Redundancy) applications, the TMR I/O variant is required
- Compatible with Bently Nevada 3300 XL, 3300, and 7200 series sensors
