Bently Nevada 330101-00-08-10-01-CN 3300 XL 8 mm Proximity Probe

Description

Designed to meet the stringent demands of modern rotating machinery protection systems, the Bently Nevada 330101-00-08-10-01-CN is a high-performance 3300 XL Series 8 mm non-contacting transducer. It provides precise dynamic and static distance measurements between the probe tip and the observed target surface, making it crucial for measuring critical parameters such as radial vibration, shaft axial position, and eccentricity. This model features an unthreaded body configuration with an overall case length of 0.8 inches and a 1.0-meter standard coaxial cable terminated with a miniature coaxial ClickLoc connector and protective sheath, ensuring long-term structural reliability under extreme industrial conditions.

Features

• Robust Core Construction: High-grade Polyphenylene Sulfide (PPS) tip material molecularly bonded to an AISI 303/304 stainless steel case for maximum environmental resistance.
• Secure Signal Integrity: Equipped with a ClickLoc miniature coaxial connector and specialized connector protector to prevent oil and fluid ingress.
• Advanced Pressure Sealing: Integrated Viton O-ring design dynamically seals differential pressure between the probe tip and outer case.
• Stable Operating Profile: Exceptionally low thermal drift across wide temperature variations in heavy-duty machinery housings.

Applications

• Steam, gas, and hydro turbine shaft relative vibration and axial thrust position tracking.
• Multi-stage centrifugal compressor casing differential expansion and rotor shaft displacement.
• High-speed industrial gearbox input/output shaft radial orbit analysis.
• Heavy industrial pumps and electric motor bearing housing monitoring.

Technical Specifications

Connections and Interfaces

Empirical Engineering Insights

Alternative Models & Compatibility

The 330101-00-08-10-01-CN is natively designed for 1.0-meter system components. To guarantee linear voltage output scales of 7.87 V/mm (200 mV/mil), this probe must be integrated into a system with a matching overall physical cable length of 5.0 meters or 9.0 meters. Using this 1.0-meter probe requires pairing it with either a 4.0-meter or an 8.0-meter non-armored or armored extension cable (e.g., Bently Nevada 330130 series) and the corresponding 3300 XL Proximitor Sensor. Mixing 3300 XL components with non-XL 3300 8 mm components is possible but will result in slightly degraded temperature stability and linearity.

Application Pitfalls & Engineering Notes

During installation, engineers must keep a minimum clearances gap from surrounding structural metal to prevent side-loading calibration issues. The 8 mm probe tip requires a metal-free clearance target area of at least 1.5 times the probe diameter around the center line. If the probe is mounted too close to surrounding bracketry or the housing wall, the Proximitor sensor will experience electromagnetic field leakage, causing an artificially offset gap voltage and unrepresentative vibration readings.

Commissioning & Wiring Tips

When connecting the coaxial cable, ensure the ClickLoc connector is dry and free of particulate oil. Always use the included silicone-based connector protector kit (option 01) to completely encapsulate the joint. This avoids short-circuiting of the RF drive frequency by conductive bearing lubrication oils. Use a high-quality coaxial torque wrench calibrated for Bently Nevada miniature connectors (recommended torque: 0.56 to 0.90 N-m) to prevent structural over-tightening or connector pin deformation.

Installation Guidelines