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BENTLY 146031-02 3300 XL Proximity Probe System
Product Overview
The BENTLY 146031-02 is a high-precision 3300 XL Proximity Probe System designed for continuous monitoring of shaft displacement and vibration in critical rotating machinery. As a core component of Bently Nevada’s 3300 Series Machinery Protection System, this probe system converts mechanical movements into electrical signals, enabling real-time analysis of shaft position, vibration amplitude, and dynamic behavior in turbines, compressors, and generators. The 146031-02 integrates seamlessly with 3300 Series monitors (e.g., 3300/42M) and 3500 Series rack systems, delivering reliable measurements to support predictive maintenance and prevent catastrophic failures across industries such as oil & gas, power generation, and manufacturing.
Featuring a rugged stainless-steel construction, the BENTLY 146031-02 includes a proximity probe, extension cable, and position monitor designed for harsh industrial environments. The probe’s 5 mm diameter tip provides a measurement range of 0–125 mils (0–3.175 mm) with ±0.5% linearity, ensuring precise detection of shaft movements. Its hermetically sealed enclosure (IP65-rated) and corrosion-resistant materials protect against dust, moisture, and chemical exposure, while the system’s wide temperature range (-40°C to +177°C) makes it suitable for high-temperature applications like turbine casings. The 146031-02 supports standard 2-wire installations, simplifying integration with existing monitoring networks and reducing installation complexity.
In automation ecosystems, the 146031-02 serves as the front-end sensor for machinery protection systems, feeding real-time displacement data to monitoring modules for trend analysis, alarm activation, and shutdown triggering. Its compatibility with industry standards (e.g., API 670) ensures compliance with safety regulations, while the low-output impedance and built-in signal conditioning minimize electromagnetic interference. By providing actionable insights into shaft health, this probe system helps reduce unplanned downtime, optimize maintenance schedules, and extend equipment lifespan in mission-critical operations.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 146031-02 |
| Manufacturer | Bently Nevada |
| Product Type | Proximity Probe System |
| Series | 3300 XL |
| Probe Tip Diameter | 5 mm |
| Measurement Range | 0–125 mils (0–3.175 mm) |
| Linearity | ±0.5% of full scale |
| Output Signal | 4–20 mA (proportional to displacement) |
| Excitation Voltage | 24 V DC (supplied by monitor) |
| Physical Dimensions | Probe: 5 mm (diameter) × 50 mm (length); Extension Cable: 3 m; Position Monitor: 76 mm × 51 mm × 25 mm |
| Weight | 0.25 kg (probe and cable) |
| Operating Temperature | Probe: -40°C to +177°C; Position Monitor: -40°C to +85°C |
| Mounting | Threaded (1/2-20 UNF or M14×1.5) |
| Environmental Rating | IP65, NEMA 4X |
Key Features and Advantages
High-Accuracy Displacement Measurement: The 146031-02 provides precise shaft displacement readings with ±0.5% linearity, enabling early detection of misalignment, bearing wear, or shaft rubs. Its wide measurement range (0–125 mils) accommodates both small and large machinery movements, supporting comprehensive health analysis.
Rugged Industrial Design: The probe’s stainless-steel housing and IP65 rating protect against harsh environmental factors, including water jets, dust, and corrosive gases. The system’s high-temperature tolerance (probe up to +177°C) makes it suitable for direct mounting on hot surfaces like turbine casings without additional cooling.
Seamless System Integration: Compatible with BENTLY’s 3300 and 3500 Series monitoring systems, the 146031-02 simplifies integration with existing infrastructure. The standard 2-wire configuration and industry-standard output (4–20 mA) allow easy connectivity to PLCs, DCS, and SCADA systems, reducing integration costs.
Low Noise and High Reliability: The built-in signal conditioning and shielded cable minimize electromagnetic interference, ensuring clean displacement signals. The probe’s non-contact sensing principle eliminates wear and tear, enhancing long-term reliability and reducing maintenance needs.
Application Flexibility: Suitable for both radial vibration and axial displacement monitoring, the 146031-02 supports diverse machinery types, from small motors to large turbines. Its modular design (probe, cable, monitor) allows flexible installation in tight spaces or remote locations.
Application Areas
The BENTLY 146031-02 is essential for machinery health monitoring in industries where equipment reliability is critical:
- Oil & Gas: Monitors shaft displacement in compressors, pumps, and turbines at refineries, pipelines, and offshore platforms to detect misalignment or bearing degradation, preventing costly shutdowns.
- Power Generation: Installed on steam turbines, generators, and auxiliary equipment in thermal, hydro, and nuclear plants to ensure safe operation and grid stability.
- Manufacturing: Used in high-speed rotating machinery (e.g., motors, fans, conveyors) in automotive, chemical, and food processing facilities to maintain production continuity and product quality.
- Aerospace & Defense: Deployed on test stands and propulsion systems to analyze shaft dynamics, ensuring compliance with rigorous performance standards.
Specific applications include:
- Radial Vibration Analysis: Measures shaft vibration amplitude to identify imbalance or misalignment issues before they escalate into catastrophic failures.
- Axial Displacement Monitoring: Tracks thrust bearing wear in turbines and compressors, triggering alarms when clearances exceed safe limits.
- Shaft Position Sensing: Monitors rotor position in critical processes, such as steam turbine lube oil system operation, to prevent metal-to-metal contact.
Related Products
- BENTLY 330700 Proximity Probe System: A 5 mm tip variant with extended measurement range, compatible with the 146031-02 in multi-probe setups.
- BENTLY 330500 Proximity Probe System: An 11 mm tip model for large shafts, often used alongside the 146031-02 for comprehensive monitoring.
- BENTLY 3300/42M Vibration Monitor: Processes signals from the 146031-02 to provide real-time vibration analysis and alarm outputs.
- BENTLY 3500/42M Proximitor Monitor: Integrates with the 146031-02 in 3500 Series racks for advanced machinery protection.
- BENTLY 330903 Extension Cable: Extends the 146031-02 system for remote mounting, available in various lengths (e.g., 5 m, 10 m).
- BENTLY 330103 Probe Housing: Mounting accessory for the 146031-02 probe, ensuring secure installation on machinery casings.
Installation and Maintenance
Pre-installation Preparations:
Before installing the BENTLY 146031-02, verify the mounting surface is flat and free of debris. Use a torque wrench to secure the probe housing (recommended torque: 11–14 N·m) and route the extension cable away from high-voltage lines to minimize interference. Connect the position monitor to the 3300 Series rack or standalone monitor, ensuring proper grounding to reduce noise. Calibrate the system with a known displacement source (e.g., calibration fixture) to validate measurement accuracy before commissioning.
Before installing the BENTLY 146031-02, verify the mounting surface is flat and free of debris. Use a torque wrench to secure the probe housing (recommended torque: 11–14 N·m) and route the extension cable away from high-voltage lines to minimize interference. Connect the position monitor to the 3300 Series rack or standalone monitor, ensuring proper grounding to reduce noise. Calibrate the system with a known displacement source (e.g., calibration fixture) to validate measurement accuracy before commissioning.
Maintenance Suggestions:
- Routine Inspections: Quarterly visual checks for loose connections, cable wear, or corrosion on the probe and monitor. Use a handheld vibrometer to compare 146031-02 readings with reference sensors for calibration verification.
- Cleaning: Remove dust and debris from the probe tip and housing using a dry cloth or compressed air, especially in dusty environments. Avoid using solvents that may damage the probe’s protective coating.
- Periodic Calibration: Annually calibrate the 146031-02 using a precision displacement shaker to maintain measurement accuracy. Document calibration results for compliance and traceability.
- Spare Parts Management: Store spare 146031-02 probes and monitors in a temperature-controlled environment (10–30°C) with low humidity to preserve performance. Test spares periodically to ensure functionality.
Product Guarantee
Our company provides a 12-month quality warranty for the BENTLY 146031-02, covering hardware defects under normal use. In the event of abnormal performance—such as signal instability or measurement drift—we offer prompt replacement services to minimize downtime. For legacy or urgent requirements, our global supply chain ensures rapid delivery of the 146031-02 and related spares. Our technical support team assists with installation, calibration, and troubleshooting, ensuring reliable operation to safeguard your industrial systems.
For inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com.
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