Products Description
The Bently Nevada 330102-00-20-10-11-05 3300 XL 8 mm Proximity Probes are eddy current proximity probes designed for high-precision condition monitoring of industrial rotating equipment. They are core components of the 3300 XL series. With an 8mm probe tip as its core, they accurately capture rotor radial vibration, axial displacement, and key phase information. By converting physical gap changes into electrical signals, they provide real-time, reliable raw data for health diagnosis of large, critical equipment such as turbines, compressors, and generators. With excellent environmental adaptability and measurement stability, these probes can operate long-term in harsh industrial environments. They are key monitoring components for ensuring safe equipment startup and shutdown, preventing sudden failures, and extending equipment life.
Technical Specifications

Manufacturer: Bently Nevada
Product Model: 330102-00-20-10-11-05
Product Type: 3300 XL 8 mm Proximity Probes
Country of origin: USA
Part Number-AA-BB-CC-DD-EE
A: Unthreaded Length Option: 00 = 0.0in.
B: Overall Case Length Option: 20 = 2.0Miniature coaxial
C: Total Length Option: 10 = 1.0 meter (3.3 feet)
D: Connector and Cable-Type Option: 11 = Miniature coaxial ClickLocconnector with connector protector, FluidLoc cable
E: Agency Approval Option: 05 = CSA, ATEX, IECEx Approvals
Precautions
- Measured Surface Requirements: The surface roughness of the metal being measured must be ≤ Ra 1.6μm, and the surface flatness deviation must be ≤ 0.1mm. If rust or oil is present on the surface, clean it in advance. Otherwise, it will affect the eddy current effect and increase measurement error.
- Overtemperature Protection: When the operating temperature of the equipment exceeds 150°C, replace the probe with a high-temperature probe (such as the 330102 series ETR version) to prevent the insulation layer of the internal coil of a standard probe from aging due to high temperatures, causing signal drift or probe damage.
- Avoid Mechanical Shock: During installation and maintenance, do not strike the probe tip or pull on the cable. If the probe tip is deformed or worn, replace it immediately. Failure to do so will seriously affect measurement accuracy and may even render the probe useless.
- Regular Maintenance Inspection: Perform on-site maintenance every six months to check the probe's installation tightness and the connector's seal (for oil, dirt, or moisture infiltration). Verify the probe's sensitivity using a calibration block to ensure long-term stable operation.
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