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The 3500/46M (Part Number 176449‑06) is a multi-mode dynamic and hydrodynamic monitoring module within the 3500 Series machinery protection system. Designed for advanced monitoring applications, this module accepts signals from a wide range of sensors, including acceleration, velocity, displacement, pressure, and temperature. It provides real-time evaluation, alarm generation, and buffered outputs for comprehensive analysis of machine health.
The 3500/46M is specifically engineered for systems that require fusion of multiple measurement types in a single module—particularly those used in high-value rotating machinery.
| Parameter | Typical / Max Value |
|---|---|
| Model | 3500/46M 176449‑06 |
| Number of Channels | 4 independent channels |
| Supported Input Types | Acceleration, velocity, displacement, pressure, auxiliary temperature |
| Buffered Outputs | Yes, for all channels |
| Alarm Functions | Configurable Alert / Danger thresholds, 1X / nX tracking, logic rules |
| Signal Processing | High/low/bandpass filters, notch filters, amplitude scaling |
| Power Consumption | Approx. 10 W |
| Operating Temperature | –30 °C to +65 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity Tolerance | Up to 95% (non-condensing) |
| Mounting Method | Rack-mounted in 3500 Series frame |
| Dimensions (L × W × H) | 241.3 mm × 24.4 mm × 99.1 mm |
| Weight | 0.22 kg |
The 3500/46M module is ideal for condition monitoring of complex or high-value machinery where multiple dynamic parameters must be monitored in real time.
Common applications include:
Turbines (Gas, Steam, Hydro): Shaft displacement, vibration, pressure, and bearing analysis
Compressors & Pumps: Detect early faults by correlating vibration with flow or pressure changes
Petrochemical Machinery: Combined monitoring of motion, stress, and fluid dynamics
Oil & Gas Production Systems: Monitoring rotating machinery in high-risk offshore and onshore environments
Hydroelectric Generators: Track dynamic behavior under fluid load
Marine Propulsion Systems: Real-time analysis of bearings, drive shafts, and pump systems
Industrial Fans and Blowers: Vibration, thermal expansion, and pressure-induced behaviors
The module is also well-suited for predictive maintenance systems, integrating dynamic, hydrodynamic, and thermal data to avoid catastrophic failure.
Multi-Mode Monitoring: Supports multiple sensor types for vibration, displacement, pressure, and temperature in one module
Independent Channel Configuration: Each of the 4 channels can be configured for different signal types
Advanced Signal Processing: Filtering, scaling, and 1X/nX tracking enable precise diagnostic analytics
Real-Time Alarms: Configurable Alert and Danger thresholds help prevent equipment damage
Buffered Outputs: Each channel provides buffered output for external analysis tools
Compact and Modular: Saves rack space, integrates seamlessly into existing 3500 systems
Wide Environmental Range: Operates reliably in harsh industrial settings
System Compatibility: Fully compatible with other 3500 modules and system architecture
Brand: Bently Nevada
Series: 3500 Machinery Protection System
The 3500 Series is a globally recognized platform for real-time machine protection, diagnostics, and condition monitoring, used widely in critical industrial sectors.
| Model | Description | Input Types | Channels | Dimensions / Weight |
|---|---|---|---|---|
| 3500/46M 176449‑06 | Multi-mode dynamic/hydrodynamic monitor | Accel., velocity, displacement, pressure | 4 | 241.3 × 24.4 × 99.1 mm / 0.22 kg |
| 3500/44M | Triple-redundant vib/displacement module | Vibration / Proximity sensors | 4 | Rack size / ~0.76 kg |
| 3500/42M | Vibration and proximity monitor | Proximitor® / Acceleration sensors | 2 or 4 | Rack size / ~0.75 kg |
| 3500/40M | Displacement-only monitor | Proximity probes | 4 | Rack size / ~0.73 kg |
| 3500/25 | Keyphasor interface module | Speed probes / phase reference | 2 | Rack size / ~0.72 kg |
| Model | Function | Input / Output | Channels | Dimensions / Weight |
|---|---|---|---|---|
| 3500/60 | Temperature monitor | RTD / Thermocouple | 6 | Rack size / ~0.74 kg |
| 3500/22M | Communication gateway | Ethernet, serial, digital I/O | N/A | Rack size / ~0.80 kg |
| 3500/94M | Local display interface | VGA / panel display | N/A | Rack size / ~0.82 kg |
| 3300 XL Proximitor® | Proximity transducer | Proximity probes | N/A | Sensor-sized / ~0.35 kg |
| 1900/65A | Standalone vibration monitor | Acceleration / Velocity | 2 | Compact size / ~0.65 kg |
Q1: What does the 3500/46M monitor?
A1: It monitors multiple signal types including vibration, velocity, displacement, pressure, and temperature for comprehensive machine diagnostics.
Q2: How many channels does it have?
A2: The module has 4 independent channels.
Q3: Can each channel be configured differently?
A3: Yes, each channel can be independently set for different input types, such as vibration or pressure.
Q4: What types of sensors can be connected?
A4: It supports accelerometers, velocity sensors, proximity probes, pressure transmitters, and thermocouples (as auxiliary input).
Q5: What is its size and weight?
A5: Dimensions are approximately 241.3 mm × 24.4 mm × 99.1 mm, and weight is around 0.22 kg.
Q6: What is the operating temperature range?
A6: –30 °C to +65 °C operating; –40 °C to +85 °C storage.
Q7: How does it generate alarms?
A7: The module compares real-time measurements against user-defined Alert and Danger thresholds to trigger alarms.
Q8: Can it be hot-swapped?
A8: No, power must be turned off before inserting or removing the module from the rack.
Q9: Is it compatible with other 3500 modules?
A9: Yes, it integrates fully with the 3500 system including relays, display modules, and communication interfaces.
Q10: Can it be used in offshore or harsh environments?
A10: Yes, when installed in protective enclosures that meet environmental standards.
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