Description
Bently 330105-02-12-10-02-05
Technical Specifications
- Product Series: 3300 XL 8mm Proximity Probe
- Part Number: 330105-02-12-10-02-05
- Probe Diameter: 8 mm
- Thread Type: M10×1 metric
- Unthreaded Length: 0.2 inch (approximately 5 mm)
- Overall Case Length: 1.2 inch (approximately 30 mm)
- Total Cable Length: 1.0 meter
- Connector Type: Miniature coaxial ClickLoc connector, standard cable
- Agency Approval: Multi-agency approval (CSA, ATEX, IECEx)
Functional Features
- Non-Contact Measurement: Provides precise measurement of both static position and dynamic vibration without physical contact.
- High Sensitivity: Delivers 7.87 V/mm (200 mV/mil) output for accurate detection of minute vibration changes.
- API 670 Compliance: Meets API 670 requirements for mechanical configuration, linear range, accuracy, and temperature stability.
- System Interchangeability: Fully interchangeable with other 3300 XL 8mm proximity probes, no individual matching or bench calibration required.
- Multi-Agency Certification: Certified for use in hazardous areas per CSA, ATEX, and IECEx standards.
Application Scenarios
Used in fluid film bearing machines for radial vibration monitoring, axial displacement measurement, Keyphasor reference, and speed measurement. Common applications include steam turbines, gas turbines, centrifugal compressors, pumps, fans, and gearboxes in power generation, petrochemical, refining, and steel industries.
Performance Parameters
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Linear Range: 2 mm (80 mils)
- Frequency Response: 0 to 10 kHz
- Accuracy: ±1% of full scale
- Operating Temperature: -52°C to +177°C
- Recommended Gap Setting: 1.27 mm (50 mils)
- Recommended Minimum Shaft Diameter: 50 mm
Material Composition
Stainless steel probe body with precision-wound internal coil, TipLoc patented molding technology, CableLoc patented cable retention design, and gold-plated ClickLoc connectors.
Structural Characteristics
Cylindrical 8mm diameter probe with M10×1 metric mounting thread. The probe features an integrated 1.0 meter standard cable terminated with a miniature coaxial ClickLoc connector. The 0.2 inch unthreaded length and 1.2 inch case length provide a compact form factor for installations with limited axial space.
Working Principle
The probe coil generates a high-frequency magnetic field (typically 1-2 MHz), and eddy currents induced in the conductive target surface alter the coil impedance proportionally to the gap distance. The Proximitor detects this impedance change and converts it into a DC voltage output.
Installation Requirements
Mount the probe using the M10×1 metric thread in a tapped hole on the machine bearing housing. Ensure the probe tip is perpendicular to the target surface. The total system electrical length (probe cable plus extension cable) must match the Proximitor rating.
Usage Notes
Verify the target surface is clean, smooth, and free of scratches or plating before installation. The recommended initial gap setting is 1.27 mm (50 mils), corresponding to approximately -10 VDC output. Ensure the combined electrical length of the 1.0 meter probe cable plus the extension cable exactly matches the Proximitor’s rated system length.
