Description
Detailed parameter table
| Parameter name | Parameter value |
| Product model | 3500/40M 140734-01 |
| Manufacturer | Bently Nevada |
| Product category | Machinery Protection System Vibration Monitor |
| Monitoring channels | 4 independent vibration channels |
| Input type | Proximity probes, velocity transducers, accelerometers |
| Measurement range | ±25 mm peak-to-peak displacement; 0-50 mm/s velocity; 0-500 m/s² acceleration |
| Frequency range | 0.1 Hz to 10 kHz |
| Alarm capability | Configurable dual alarm levels per channel (Alert, Danger) |
| Communication interface | 3500 system backplane, Ethernet (10/100 Base-T) |
| Operating voltage | 5 VDC, ±15 VDC (from 3500/15 127610-01 power supply) |
| Power consumption | 8 W typical, 10 W maximum |
| Operating temperature | 0°C to +60°C (32°F to +140°F) |
| Form factor | 3500 system rack mount (2 slot width) |
| Dimensions | 266 mm (H) × 72 mm (W) × 229 mm (D) (10.5″ × 2.8″ × 9.0″) |
| Compatibility | 3500/60 163179-01 displays, 3500/22M 138607-01 modules, 3500 racks |
| Certification | UL, CE, RoHS compliant, IEC 61010-1 approved |
BENTLY 3500/40M 140734-01
Product introduction
The 3500/40M 140734-01 from Bently Nevada is a high-performance vibration monitoring module designed for the 3500 Machinery Protection System, specializing in continuous measurement and analysis of machinery vibration parameters. This 2-slot rack-mounted module serves as the core vibration sensing component in industrial monitoring systems, providing critical data on rotating equipment health through its four configurable channels.
Unlike general-purpose monitoring devices, 3500/40M 140734-01 is engineered specifically for machinery protection applications, supporting multiple sensor types and providing industry-standard vibration metrics that directly indicate equipment condition. It seamlessly integrates with display modules like the 3500/60 163179-01 for real-time visualization and with transient modules such as 3500/22M 138607-01 to trigger data capture during abnormal vibration events.
In machinery protection ecosystems, 3500/40M 140734-01 plays a foundational role in detecting early signs of machinery degradation, including imbalance, misalignment, bearing wear, and resonance conditions. By continuously monitoring vibration signatures and generating timely alarms, it enables both protective actions and predictive maintenance strategies, maximizing equipment reliability across power generation, oil and gas, and manufacturing industries.
Core advantages and technical highlights
Multi-sensor versatility: 3500/40M 140734-01 supports multiple sensor types across its four channels, including proximity probes for shaft vibration, velocity transducers for bearing housing vibration, and accelerometers for high-frequency measurements. This flexibility allows the module to monitor different machinery components with optimal sensor technology, from low-speed turbines to high-speed compressors, without requiring specialized modules for each sensor type.
Comprehensive vibration analysis: The module calculates and stores key vibration parameters including peak-to-peak displacement, RMS velocity, and peak acceleration, providing a complete picture of machinery condition. It processes raw sensor data to extract meaningful metrics that correlate directly with machinery health, eliminating the need for external signal processing and enabling immediate alarm generation based on industry-standard thresholds.
Precision alarm management: 3500/40M 140734-01 features independently configurable dual alarm levels per channel with adjustable time delays, ensuring reliable detection of abnormal vibration conditions while preventing nuisance alarms from transient events. Alarm signals are propagated through the 3500 backplane to displays like 3500/60 163179-01 and can trigger transient data capture in 3500/22M 138607-01 modules, creating a coordinated response to potential machinery issues.
Seamless system integration: Designed for the 3500 architecture, the module communicates via the system backplane with other components, maintaining precise timing synchronization across the entire monitoring system. This integration ensures that vibration data correlates accurately with temperature readings, process variables, and transient events, providing a holistic view of machinery health that supports accurate diagnosis and effective maintenance decisions.
Typical application scenarios
In natural gas power plants, 3500/40M 140734-01 modules monitor gas turbine vibration, with dedicated channels for shaft radial vibration (via proximity probes), bearing housing vibration (velocity transducers), and combustion dynamics (accelerometers). The module continuously analyzes these signals, displaying real-time data on 3500/60 163179-01 screens while triggering 3500/22M 138607-01 transient capture during vibration spikes. This comprehensive monitoring enables early detection of blade degradation or combustion instability, preventing catastrophic turbine failures.
Petrochemical refineries utilize 3500/40M 140734-01 in centrifugal pump monitoring systems, where the module’s four channels monitor critical pump bearings and motor vibration. The module detects subtle vibration increases indicative of impeller wear or bearing degradation, generating alerts displayed on 3500/60 163179-01 interfaces. By correlating vibration data with process parameters, operators can distinguish between mechanical issues and process-induced vibration, optimizing maintenance scheduling for these critical process pumps.
Wind energy facilities employ 3500/40M 140734-01 to monitor gearbox and generator vibration in wind turbines, with channels dedicated to high-frequency bearing monitoring and low-frequency structural vibration. The module’s wide frequency range captures both gear meshing frequencies and tower oscillation, providing data that helps operators distinguish between normal operational vibration and potential gear failure or structural issues. Alarm data is visualized on 3500/60 163179-01 displays in remote operation centers, supporting condition-based maintenance of distributed wind assets.
BENTLY 3500/40M 140734-01
Related model recommendations
3500/60 163179-01: Display module visualizing vibration data from this monitor.
3500/22M 138607-01: Transient module triggered by alarms from 3500/40M 140734-01.
3500/15 127610-01: Power supply module providing regulated power to this vibration monitor.
330106-05-30-10-02-00: Proximity probe system compatible with this module’s input channels.
3500/72M: Temperature monitor whose data correlates with this module’s vibration measurements.
177230-01-01-05: Extension cable connecting sensors to this vibration monitoring module.
3500/05-01-01-00-00-01: Communication module transmitting data from this monitor to control systems.
3500/25 184684-01: Relay module executing protective actions based on this monitor’s alarms.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing 3500/40M 140734-01, verify the 3500 rack has two adjacent slots available and a properly sized 3500/15 127610-01 power supply. Prepare sensor cabling using shielded twisted-pair wiring (like 177230-01-01-05) for each channel, routing cables away from high-voltage equipment and variable frequency drives to minimize electromagnetic interference. Confirm the installation environment maintains temperatures within 0°C to +60°C with adequate ventilation to ensure measurement stability.
Maintenance suggestions: Include 3500/40M 140734-01 in quarterly system inspections, verifying all four channels display stable readings within expected ranges. Perform annual calibration verification using calibrated vibration sources to ensure measurement accuracy across the full frequency range. Inspect sensor connections for corrosion or loosening, cleaning terminals with approved contact cleaner as needed. Monitor alarm history logs to identify trending vibration increases that might indicate sensor degradation or emerging machinery issues. Coordinate firmware updates with other 3500 modules to maintain system compatibility, especially when paired with updated displays like 3500/60 163179-01.
Service and guarantee commitment
Bently Nevada provides the 3500/40M 140734-01 with a 36-month warranty covering manufacturing defects and performance issues under normal operating conditions, including measurement accuracy, alarm functionality, and communication reliability when used with compatible 3500 series components. Our technical support team offers expert guidance on sensor selection, channel configuration, and vibration analysis methodologies specific to this monitoring module.
We offer specialized training on vibration analysis, module configuration, and troubleshooting to maximize the diagnostic value of data from 3500/40M 140734-01. Beyond the warranty period, our service agreements include calibration services, technical support, and expedited replacement to minimize system downtime. Bently Nevada’s commitment to quality ensures reliable vibration monitoring throughout the module’s operational lifecycle, backed by our global network of service professionals dedicated to protecting your critical machinery assets.
