Bently Nevada 330101-00-35-10-02-00 3300 XL 8 mm Proximity Probe

Description

The Bently Nevada 330101-00-35-10-02-00 is an unarmored 8 mm proximity probe from the 3300 XL series featuring a 3/8-24 UNF thread, a 3.5-inch fully threaded case length (0.0-inch unthreaded length), a 1.0-meter total cable length, a miniature coaxial ClickLoc connector, and a standard (non-FluidLoc) cable configuration with no agency approvals required (00 option). This specific configuration provides precise, non-contact shaft vibration and position measurement in machinery protection chains, pairing directly with a 3300 XL extension cable and a 330180 series Proximitor sensor.

Operating on the eddy-current principle, this probe measures both static shaft position (axial displacement) and dynamic shaft vibration (radial movement). The 3300 XL system delivers advanced performance and complete interchangeability of probes, extension cables, and Proximitor sensors, eliminating the need to match or bench-calibrate individual components. The probe's tip is molded from rugged Polyphenylene Sulfide (PPS) plastic, encapsulating the internal coil to ensure long-term stability and physical resilience inside bearing housings, gearboxes, and steam/gas turbine casings.

Features

• Fully Threaded 3/8-24 UNF Case: Offers a 3.5-inch case length with 0.0-inch unthreaded length to allow deep thread engagement and flexible gapping.
• ClickLoc Coaxial Connector: Equipped with a miniature gold-plated ClickLoc connector that resists vibration-induced disconnects.
• Polyphenylene Sulfide (PPS) Tip: Extremely rugged, chemical-resistant tip protects the active sensor coil from hot oil and mechanical abrasion.
• Excellent Temperature Stability: Maintains accuracy across a wide temperature range of -52 to +177 degC (-62 to +350 Fahrenheit).
• Complete Compatibility: Fully backward-compatible and physically interchangeable with non-XL 3300 series 5 mm and 8 mm components.

Applications

This high-precision proximity probe is widely used for industrial rotating machinery protection in heavy industries such as oil and gas, power generation, and petrochemicals. Typical applications include:

• Steam and gas turbine shaft radial vibration and axial position measurement.
• Compressor and pump rotor displacement monitoring.
• Industrial fan and gearbox bearing condition monitoring.
• Keyphasor reference and rotational speed measurements.

Ordering Information

Technical Specifications

Installation Guidelines

To ensure proper operation and long service life of the proximity probe, adhere to the following guidelines during installation:

• Probe Gapping: Set the correct gap using a digital voltmeter measuring the DC output voltage of the associated Proximitor sensor. For radial vibration monitoring, the nominal gap setting is 1.27 mm (50 mils), which corresponds to -9 Vdc.
• Torque Limits: Do not exceed the maximum rated thread engagement torque of 11.2 N-m (100 in-lbf) during installation into the mounting bracket or bearing casing.
• Cable Routing: Ensure the coaxial cable is routed away from high-voltage cables and is physically supported to prevent whipping or tension. Observe the minimum bend radius constraints.
• Shaft Diameter: Maintain recommended minimum shaft target diameters of 76.2 mm (3 in) to preserve calibrated scale factor performance.