Bently Nevada 330704-000-050-10-02-05

Description

Core Measurement Specifications

• Nominal Probe Diameter: 11 mm
• Linear Measuring Gap Range: 1.0 mm – 4.0 mm (40 – 160 mils)
• System Scale Factor: 3.94 V/mm (100 mV/mil)
• Output Signal: DC voltage proportional to gap distance
• Frequency Response Bandwidth: 0 Hz (DC) – 10 kHz (+0/-3 dB)
• Measurement Accuracy: ±0.5% full scale range
• Standard Calibration Target: AISI 4140 carbon steel
• Minimum Measurable Target Diameter: 19 mm

Electrical Specifications (System Matching)

• Matching Proximitor Operating Power Supply: -17.5 VDC to -26 VDC
• Maximum Current Consumption: 12 mA
• Output Impedance: 50 Ω
• Supply Voltage Stability: ≤2 mV output drift per 1 V supply voltage change
• Signal Isolation: Full galvanic isolation between probe circuit and monitoring system internal circuits

Mechanical & Structural Specifications (Exclusive for 330704-000-050-10-02-05)

• Probe active section: fully unthreaded structure (000 configuration)
• Total integral cable length: 0.5 meter (050 configuration code)
• Probe body structure: standard short body length (10 configuration code)
• Connector type: Miniature coaxial ClickLoc™ quick-lock connector (02 configuration code)
• Special version: high-temperature resistant grade (05 configuration code)
• Probe tip material: High-performance high-temperature resistant polyphenylene sulfide (PPS)
• Probe housing material: AISI 304 stainless steel high-temperature resistant alloy
• Probe outer diameter: 11 mm
• Net weight of complete probe assembly: 0.49 kg
• Overall dimensions: 220 mm × 65 mm × 32 mm

Environmental Specifications

• Probe Operating Temperature: -52 °C to +204 °C (high-temperature exclusive grade)
• Probe Storage Temperature: -55 °C to +220 °C
• Humidity Resistance: 100% condensing environment, non-submerged operation
• Protection Rating: IP67
• Anti-vibration Performance: 10–2000 Hz, 10 g continuous acceleration resistance
• Anti-interference Performance: Fully complies with industrial EMC electromagnetic compatibility standards

Certifications & Compliance

• Fully compliant with API 670 Machinery Protection Standard
• CE industrial safety certification
• CSA certification
• RoHS lead-free compliant

Core Functional Features

1. 11 mm Large-Diameter High-Precision Eddy Current Non-Contact Measurement

   11 mm probe diameter provides wider linear gap range and higher signal stability than standard 8 mm probes. No physical contact with rotating shafts, completely eliminates mechanical wear, maintains long-term stable measurement accuracy and service life. It accurately detects large gap variation and large-amplitude radial vibration displacement.
2. Exclusive High-Temperature Resistant Design (05 Code)

   Special high-temperature materials for probe tip, cable insulation and connector components. Stable operation up to +204 °C, far exceeds standard probe temperature rating, specially adapted to extreme high-temperature machinery environments.
3. 0.5 Meter Integral Fixed Cable Design

   Integrated probe+cable structure with fixed 0.5 meter length, stable signal transmission, ultra-low signal attenuation, dedicated for ultra-short-distance direct local installation on equipment bodies.
4. Fully Unthreaded Probe Body Structure

   Smooth unthreaded probe shaft, easy insertion into mounting holes, suitable for interference fit and sleeve mounting installation methods.
5. Dual Integrated Measurement Modes

   Supports both static shaft radial/axial position monitoring (DC gap voltage) and dynamic radial vibration monitoring (AC vibration signal), meeting position protection and vibration fault diagnosis requirements simultaneously.
6. ClickLoc Miniature Coaxial Quick Connector

   Fast plug-and-play connection with extension cables or proximitors, reliable contact, anti-loosening structure, greatly improves on-site installation and maintenance efficiency.
7. Ultra-Low Temperature Adaptability

   Simultaneously supports stable operation at -52 °C low temperature, realizes full-temperature-range reliable performance.
8. Full System Interchangeability

   Uniform standard with 3300 XL series probes, extension cables and proximitors; same-specification components are fully interchangeable, reduces spare parts inventory costs.
9. High-Frequency Response Performance

   0 Hz to 10 kHz bandwidth accurately captures high-frequency vibration faults, realizes early warning of shaft imbalance, misalignment, oil film instability and other mechanical faults.
10. API 670 Standard Compliance & High-Strength Structure

    Meets international rotating machinery protection specifications; stainless steel housing is corrosion-resistant, oil-resistant and dust-resistant, adapts to harsh industrial sites with oil mist, dust and corrosive gas.

Main Application Scenarios

• High-temperature power plant steam turbines, gas turbines and generator bearing units
• Petrochemical high-temperature centrifugal compressors and high-pressure process gas compressors
• High-temperature industrial oil pumps, water pumps and pipeline centrifugal pumps
• High-temperature large industrial fans, blowers and induced draft fans
• High-temperature high-voltage heavy-duty induction motors and motor bearing systems
• Offshore oil & gas platform high-temperature rotating production equipment
• High-temperature chemical processing heavy-duty rotating machinery
• Machinery predictive maintenance and high-temperature equipment health management systems
• All industrial occasions requiring API 670 standard shaft vibration protection and high-temperature environment adaptation

Model Code Definition (330704-000-050-10-02-05)

• 330704: 3300 XL 11 mm high-temperature proximity probe series
• 000: Fully unthreaded probe body configuration
• 050: 0.5 meter total integral cable length
• 10: Standard short probe body length
• 02: Miniature coaxial ClickLoc quick connector standard type
• 05: Exclusive high-temperature resistant version (+204 °C operating grade)