Description
The BENTLY NEVADA 3500/42M, part number 176449-02, is a four-channel Proximitor/Seismic Monitor for the Bently Nevada 3500 Machinery Protection System. It accepts signals from compatible proximity and seismic transducers, conditions the signals, and provides vibration and position measurements for continuous machinery monitoring.
The module compares measured parameters with user-configurable alarm setpoints and can support multiple monitoring functions. Channel pairs can be configured for functions such as radial vibration, thrust position, acceleration, velocity, eccentricity, differential expansion, shaft absolute, and REBAM monitoring.
🔧 Main Function
The 3500/42M provides the interface between field-mounted proximity or seismic transducers and the 3500 rack monitoring system. It conditions incoming sensor signals and distributes the resulting measurement information through the rack backplane.
Each of the four channels can accept proximity, velocity, or acceleration transducer signals, depending on the selected configuration and installed I/O arrangement.
🏭 Typical Applications
• Steam and gas turbines
• Turbo-compressors
• Generators
• Pumps and motors
• Industrial rotating machinery
• Power generation equipment
• Oil and gas machinery
• Machinery protection systems
• Predictive maintenance systems
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Manufacturer | BENTLY NEVADA |
| Model | 3500/42M |
| Part Number | 176449-02 |
| Product Type | Proximitor/Seismic Monitor |
| Number of Channels | 4 |
| Input Signals | Proximity / Velocity / Acceleration Transducers |
| Input Impedance | 10 kΩ, standard I/O |
| Transducer Supply | -24 VDC |
| Typical Power Consumption | 7.7 W |
| Output Impedance | 550 Ω |
| Rack System | Bently Nevada 3500 |
| Monitoring Functions | Vibration / Position / Acceleration / Velocity |
| Configuration | 3500 Rack Configuration Software |
| Dimensions | Approx. 241.3 × 24.4 × 99.1 mm* |
| Weight | Approx. 0.8 kg |
| Operating Temperature | System/configuration dependent |
| Storage Temperature | System/configuration dependent |
| Country of Origin | USA |
| Installation | 3500 Rack |
| Application | Machinery Protection |
*Dimensions may vary according to published measurement conventions and hardware configuration. The manufacturer datasheet identifies the 3500/42M as a four-channel monitor and specifies its supported monitoring functions.
⚡ Key Features
• Four-channel monitoring
• Proximity and seismic transducer compatibility
• Continuous machinery protection
• User-programmable alarm setpoints
• Signal conditioning for vibration and position measurements
• Multiple configurable measurement functions
• Compatible with the Bently Nevada 3500 rack platform
• Suitable for critical rotating-equipment monitoring
🔌 Communication & Configuration
The 3500/42M is installed in a Bently Nevada 3500 rack and configured through 3500 Rack Configuration Software. Monitoring channels are programmed in pairs, allowing different measurement functions to be assigned to channel pairs according to the application.
Alarm setpoints can be configured for active measurement values. The module can then provide alarm information to the machinery protection system when configured thresholds are exceeded.
🛠️ Installation Notes
Before installation, verify the complete identification 3500/42M / 176449-02, I/O module type, transducer compatibility, rack configuration, and existing protection-system settings.
Check the proximity probe or seismic transducer wiring carefully. Verify sensor type, polarity, cable condition, connector position, and transducer supply before energizing the rack.
After installation, confirm channel status, measurement values, alarm thresholds, and system diagnostics.
⚙️ Commissioning Checklist
• Verify module part number
• Confirm 3500 rack compatibility
• Check I/O termination type
• Verify transducer type
• Inspect field wiring
• Check -24 VDC transducer supply
• Configure measurement functions
• Set Alert and Danger thresholds
• Verify vibration/position readings
• Test alarm outputs
• Check rack diagnostics
⚠️ Compatibility Notice
The BENTLY NEVADA 3500/42M 176449-02 is a machinery protection monitoring module, not a standalone PLC or general-purpose vibration sensor. Correct operation depends on the installed 3500 rack, I/O termination module, transducer type, configuration software, and protection settings.
For replacement applications, match the part number and I/O configuration with the existing system before installation.
📦 Product Identification
Brand: BENTLY NEVADA
Model: 3500/42M
Part Number: 176449-02
Product Type: Proximitor/Seismic Monitor
Channels: 4
Function: Vibration & Position Monitoring
System: Bently Nevada 3500
Application: Machinery Protection & Condition Monitoring
