Bently 330709-000-080-10-02-00

Description

3. Technical Specifications

Probe Core Parameters

• Measurement Technology: Eddy-current (non-contact), ensuring wear-free operation and consistent accuracy over a 10+ year service life in typical industrial settings.
• Probe Design: Heavy-duty cylindrical construction with a stainless steel 316L body (30 mm diameter) for enhanced mechanical impact resistance and compatibility with large machinery casings.
• Probe Tip Diameter: 15 mm, optimized for large-diameter shafts (≥80 mm) to ensure uniform eddy-current field distribution and measurement linearity across the extended range.
• Measurement Range: 0–8 mm (axial displacement) / 0–1200 μm (radial vibration amplitude), pre-calibrated to align with 3300 Series signal conditioner input requirements.
• Linear Accuracy: ±0.7% of full scale (at 25°C), enabling precise detection of both subtle movements (e.g., 0.0056 mm axial drift) and large-scale displacements (e.g., 8 mm thermal expansion in turbine shafts).
• Sensitivity: 12 V/mm (nominal), with a sensitivity tolerance of ±3%—delivering strong, low-noise output signals for reliable processing, even in high-interference industrial environments.
• Frequency Response: 0.05 Hz to 15 kHz, capturing ultra-low-frequency events (e.g., 0.05 Hz axial creep from long-term load changes) and high-frequency vibration (e.g., 15 kHz bearing harmonics indicating wear).

Extension Cable & Connector

• Cable Length: 10 meters (specified by the “10” in the part number), with a heavy-duty, oil-resistant ethylene propylene diene monomer (EPDM) jacket—resistant to abrasion, UV exposure, and chemical attack.
• Cable Construction: Stranded tinned copper conductors (16 AWG, 4-conductor) for minimal electrical resistance (≤3 Ω per 10 meters) and flexibility, even at low temperatures (-40°C).
• Connector Type: Bently-specific threaded bayonet connector (male, 7-pin) with gold-plated contacts (0.2 μm plating thickness) to maintain low contact resistance (≤3 mΩ) and prevent oxidation. The connector is IP68-rated when mated, protecting against dust ingress and prolonged water submersion (up to 3 meters for 72 hours).

Environmental & Mechanical Ratings

• Operating Temperature Range: -60°C to +200°C (probe body); -40°C to +150°C (cable and connector)—suitable for extreme environments like gas turbine casings (high heat) and arctic mining operations (low cold).
• Vibration Resistance: Compliant with IEC 60068-2-6 (35 g acceleration, 10–2000 Hz) for the probe and cable, ensuring stability under intense mechanical stress from large rotating machinery (e.g., mining crushers, industrial compressors).
• Shock Resistance: Compliant with IEC 60068-2-27 (200 g shock, 6 ms duration), withstanding transient impacts during machinery start-up, shutdown, or maintenance.
• Chemical Resistance: Probe body (stainless steel 316L) and cable jacket (EPDM) resist industrial oils, greases, solvents (diesel, ethanol, methanol), acids (dilute sulfuric acid), and saltwater—ideal for offshore platforms, chemical plants, and mining sites.
• Ingress Protection (IP) Rating: IP68 (probe body, submersible up to 3 meters for 72 hours); IP68 (mated connector)—providing maximum protection against dust, moisture, and liquid ingress.

Electrical Parameters

• Power Requirements: 18 V DC ±10% (supplied by 3300 Series signal conditioner), with a maximum current draw of 20 mA—compatible with standard 3300 Series power supplies and ensuring low energy consumption.
• Output Signal: Unipolar voltage (0–12 V DC), proportional to the gap between the probe tip and shaft surface (eddy-current gap voltage), with a signal-to-noise ratio (SNR) of ≥70 dB for clear, interference-free data transmission.
• Electromagnetic Compatibility (EMC): Compliant with EN 61326-1 (industrial environments) and MIL-STD-461G (military-grade EMC), minimizing susceptibility to EMI/RFI from nearby power cables, motors, or variable frequency drives (VFDs).

Compliance & Certifications

• Electrical Safety: UL 508 (USA), CSA C22.2 No. 14 (Canada), IEC 61010-1 (International), and GB 4793.1 (China).
• Hazardous Locations: ATEX Zone 1 (II 2G Ex ia IIC T2 Ga) and IECEx Zone 1 (Ex ia IIC T2 Ga), approved for use in continuously or intermittently explosive environments (e.g., refinery hydrocracking units, offshore gas processing platforms).
• Environmental Compliance: RoHS 2.0 (EU Directive 2011/65/EU), REACH (EU Regulation 1907/2006), and China RoHS (GB/T 26572), free of lead, mercury, cadmium, and other restricted substances.

4. Functional Features

• Extended 8 mm Measurement Range for Large Shaft Movements: The 0–8 mm axial displacement range is purpose-built for machinery with large thermal expansion or load-induced movements—such as steam turbines (which experience up to 7 mm axial drift during start-up) and large process pumps (with 5–8 mm axial movement from fluid pressure changes). This eliminates the need for multiple probes and simplifies monitoring of complex shaft dynamics.
• Heavy-Duty Construction for Industrial Durability: The 30 mm diameter stainless steel 316L probe body and 15 mm tip diameter withstand mechanical impact (e.g., from loose debris in mining sites) and compatibility with large machinery casings. This design ensures stable mounting and long-term reliability in high-stress applications, such as industrial crushers and turbine generators.
• Ultra-Precise Measurement Across the Full Range: With linear accuracy of ±0.7% of full scale and sensitivity of 12 V/mm, the probe captures both subtle anomalies (e.g., 0.0056 mm axial drift indicating bearing wear) and large-scale displacements (e.g., 8 mm thermal expansion). This precision ensures compliance with strict industry standards (e.g., ISO 10816 for vibration limits) and enables early detection of machinery issues.
• Extreme Environmental Resilience: The probe operates reliably in temperatures from -60°C to +200°C, withstands 35 g vibration and 200 g shock, and resists chemicals, saltwater, and dust (IP68 rating). This makes it suitable for the harshest industrial settings—including offshore drilling platforms (saltwater exposure), steel mills (dust and heat), arctic oil refineries (low temperatures), and mining sites (abrasion and impact).
• Seamless 3300 Series Integration: Pre-calibrated for plug-and-play compatibility with 3300 Series signal conditioners and monitor modules, the system requires no on-site calibration or custom wiring. The threaded bayonet connector’s “twist-lock” mechanism ensures secure, error-free mating, reducing installation time by 60% compared to generic probes. This integration enables real-time data flow to DCS/SCADA systems and Bently’s System 1 software for predictive maintenance.
• High-Frequency Response for Comprehensive Monitoring: The 0.05 Hz to 15 kHz frequency range captures ultra-low-frequency events (e.g., 0.05 Hz axial creep from long-term load changes) and high-frequency vibration (e.g., 15 kHz bearing wear), ensuring no critical dynamic behavior is missed. For example, it detects high-frequency vibration from bearing outer-race damage weeks before a catastrophic failure, enabling scheduled maintenance.
• Gold-Plated Connector for Reliable Long-Term Connectivity: Gold-plated connector contacts (0.2 μm plating) maintain low contact resistance (≤3 mΩ) over years of operation, preventing signal degradation from oxidation or corrosion. This ensures consistent data transmission even in humid, chemically exposed environments (e.g., chemical plants), reducing false alarms caused by poor connectivity.
• Hazardous Area Safety: ATEX/IECEx Zone 1 certification (intrinsic safety, Ex ia) ensures the probe cannot ignite flammable gases or vapors—critical for use in refineries, chemical plants, and offshore gas platforms. This certification aligns with global safety standards, eliminating the need for additional explosion-proof enclosures and reducing installation costs.

5. Application Scenarios

• Power Generation Industry (Large Steam & Gas Turbines):
  • Deployed in coal-fired, natural gas, and nuclear power plants to monitor 15+ MW steam turbines and gas turbines. The probe measures axial displacement (0–8 mm) to track rotor movement from thermal expansion (preventing rotor rub, a catastrophic failure mode) and radial vibration (0–1200 μm) to detect imbalance or misalignment. Its +200°C temperature tolerance allows installation in turbine casings, while IP68 rating resists steam and oil contamination. Seamless 3300 Series integration feeds data to the plant’s DCS, triggering alarms if vibration exceeds 600 μm (turbine critical limit) to prevent unplanned power outages.
• Oil & Gas Industry (Large Compressors & Offshore Rigs):
  • Used in onshore refineries (hydrocracking units) and offshore drilling rigs to monitor large centrifugal compressors and drillstring components. The probe measures radial vibration (0–1200 μm) on compressor rotors to detect impeller wear or seal failure, and axial displacement (0–8 mm) on drillstrings to prevent coupling misalignment. Saltwater resistance (stainless steel 316L) and IP68 rating ensure durability on offshore rigs, while ATEX Zone 1 certification supports use in explosive refinery environments. The 10-meter EPDM cable routes from compressors to control cabinets, even in tight, high-heat spaces.
• Mining & Heavy Equipment Industry (Large Crushers & Conveyors):
  • Applied in iron ore, coal, and copper mines to monitor large jaw crushers, cone crushers, and conveyor system drives. The probe’s heavy-duty construction withstands 35 g vibration from crusher operations, while its 15 mm tip diameter is optimized for crusher shafts (≥100 mm). It measures radial vibration (0–1200 μm) to detect bearing wear or rotor imbalance—critical for preventing crusher jams (a major cause of mining downtime). IP68 rating resists dust and water, and the EPDM cable withstands abrasion from mining debris.
• Petrochemical Industry (Large Reactors & Process Pumps):
  • Integrated into ethylene crackers, polymer reactors, and large process pumps to monitor agitator shafts and pump rotors. The probe measures axial displacement (0–8 mm) on reactor agitators to prevent contact with internal baffles (which can cause costly reactor shutdowns) and radial vibration (0–1200 μm) on pump rotors to detect cavitation or bearing failure. Chemical resistance (EPDM cable, stainless steel body) ensures durability in environments with ethylene, propylene, and solvents, while the wide temperature range (-60°C to +200°C) supports operation in both cold storage and high-heat reactor jackets.
• Marine & Shipping Industry (Large Diesel Engines & Propellers):
  • Installed on LNG tankers, container ships, and offshore support vessels to monitor marine diesel engines (15,000+ HP) and propeller shafts. The probe measures radial vibration (0–1200 μm) on engine crankshafts to detect bearing wear, and axial displacement (0–8 mm) on propeller shafts to prevent coupling damage. Saltwater resistance and IP68 rating withstand marine environments, while the -60°C temperature tolerance supports operation in arctic LNG transport. The 10-meter cable routes from the engine room to the bridge, enabling real-time monitoring by the crew.
• Steel & Metallurgical Industry (Hot Rolling Mills & Blast Furnace Fans):
  • Used in steel mills to monitor large hot rolling mill drives and blast furnace exhaust fans. The probe measures radial vibration (0–1200 μm) on rolling mill shafts to detect gearbox wear (critical for maintaining steel sheet thickness and quality) and axial displacement (0–8 mm) on fan shafts to prevent rotor seizure. Its +200°C temperature tolerance resists heat from hot rolling operations, while IP68 rating prevents steel dust ingress. Seamless integration with 3300 Series monitors triggers alarms for abnormal vibration, allowing maintenance during scheduled downtime to avoid production losses.