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Product Introduction
The Bently Nevada 3500/42 176449-02+140471-01 Proximitor Seismic Monitor is an advanced condition monitoring module designed for critical rotating machinery. It is a key component within the Bently Nevada 3500 Machinery Protection System, enabling real-time detection and analysis of shaft vibration, seismic events, and proximity measurements.
This monitor integrates the precision of proximitor sensing with seismic measurement capabilities, making it highly effective for detecting both dynamic and structural conditions. It supports multiple transducer types, provides configurable alarm setpoints, and offers continuous monitoring for machinery protection and predictive maintenance.
With robust build quality, high accuracy, and exceptional configurability, the 3500/42 ensures compliance with industry standards such as API 670 and is widely adopted in power generation, petrochemical, oil & gas, and heavy industrial applications.
Product Parameters
| Parameter | Specification |
|---|---|
| Module Type | Proximitor Seismic Monitor |
| Part Numbers | 176449-02 + 140471-01 |
| Channels | 4 independent channels |
| Input Types | Proximity probes, seismic transducers |
| Frequency Response | 0.5 Hz to 10 kHz (configurable) |
| Alarm Setpoints | 2 per channel (Alert and Danger) |
| Accuracy | ±0.1% of full scale |
| Signal Processing | True RMS and peak-to-peak measurement |
| Power Supply | From 3500 rack backplane |
| Communication Protocol | Proprietary via 3500 rack interface |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 95% non-condensing |
| Compliance | API 670, CE, CSA, ATEX |
| Dimensions | 241.3 x 24.4 x 241.8 mm |
| Weight | 0.91 kg |
Product Applications
The Bently Nevada 3500/42 176449-02+140471-01 Proximitor Seismic Monitor is widely deployed in high-value industrial environments where unplanned downtime can cause significant losses. Typical applications include:
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Turbomachinery – Continuous monitoring of shaft vibration in gas turbines, steam turbines, and compressors.
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Seismic Event Detection – Capturing and analyzing mechanical shock and impact events in machinery structures.
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Pumps and Fans – Detection of misalignment, imbalance, and bearing faults.
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Industrial Generators – Monitoring for early signs of mechanical wear or rotor instability.
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Petrochemical Equipment – Ensuring operational safety in hazardous environments.
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Predictive Maintenance Systems – Providing data for advanced analytics and maintenance planning.
Product Advantages
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Dual Measurement Capability – Supports both proximity and seismic monitoring in a single module.
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High Accuracy and Sensitivity – Ensures reliable detection of subtle machinery faults.
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Flexible Configuration – Adjustable alarm thresholds, filter ranges, and signal processing modes.
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Industry Compliance – Meets API 670 and global safety certifications.
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Seamless System Integration – Fully compatible with the Bently Nevada 3500 rack system.
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Rugged Industrial Design – Operates reliably in extreme environmental conditions.
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Predictive Maintenance Enablement – Reduces downtime by identifying issues before they cause failures.
FAQ
1. What types of transducers can the 3500/42 module accept?
The module supports Bently Nevada proximity probes and seismic transducers, enabling both shaft vibration and structural vibration measurements.
2. How many channels does the module provide?
It offers four independent monitoring channels, each capable of separate configuration and alarm settings.
3. What is the frequency response range for vibration monitoring?
The module covers a frequency range of 0.5 Hz to 10 kHz, with configurable filtering options.
4. How are alarm setpoints managed?
Each channel supports two programmable alarm levels—Alert and Danger—activated when vibration exceeds predefined thresholds.
5. Is the module compliant with API 670 standards?
Yes, the 3500/42 fully meets the requirements of API 670 for machinery protection systems.
6. How does the module communicate with the system?
It communicates through the 3500 rack’s proprietary backplane interface for data transfer and control.
7. Can it differentiate between vibration types?
Yes, it can process both proximity probe signals for shaft vibration and seismic sensor signals for casing or structural vibration.
8. What power source does it require?
The module is powered directly from the 3500 rack backplane and does not require an external power supply.
9. Does it support dynamic signal output?
Yes, it provides buffered dynamic signal outputs for advanced diagnostics and analysis.
10. Can it be used in hazardous environments?
Yes, it is available with CSA, ATEX, and CE certifications for use in hazardous industrial settings.
Related Models (Same Series)
| Model | Description |
|---|---|
| 3500/40M | Proximitor Monitor for shaft vibration |
| 3500/42M | Enhanced Proximitor Seismic Monitor |
| 3500/44 | Aeroderivative Gas Turbine Vibration Monitor |
| 3500/45 | Position Monitor |
| 3500/46M | Hydro Radial Vibration Monitor |
| 3500/50 | Tachometer Module |
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