Bently Nevada 330101-00-15-20-02-CN 3300 XL 8 mm Proximity Probe

Description

Providing reliable eddy current measurement for critical machinery protection, the Bently Nevada 330101-00-15-20-02-CN serves as a non-contact displacement sensor within the 3300 XL 8 mm series. Designed for high-frequency vibration and position monitoring, this metric probe converts shaft displacement into highly linear voltage signals when paired with a compatible 3300 XL Proximitor Sensor. The probe configuration features a 0.0-inch unthreaded length, a 1.5-inch overall case length, and a 2.0-meter total cable length ending in a miniature coaxial ClickLoc connector, certified with country-specific CN agency approvals for explosive atmospheres.

Features

• Miniature coaxial ClickLoc connector ensures a robust connection resistant to process area contaminants and accidental disconnection.
• Standard unarmored cable construction optimized for deployment within conduit and internal machine casings.
• Fully compliant with API 670 standards for machinery protection systems when integrated with standard Bently Nevada instrumentation.
• Thick-walled Ryton probe tip resistant to chemical attack and high thermal stress.
• CN approval option ensures local compliance for explosive gas and dust hazards.

Applications

• Radial vibration monitoring of high-speed steam and gas turbine shafts.
• Axial thrust position measurement on multi-stage centrifugal compressors.
• Eccentricity and phase reference (Keyphasor) detection on power generation machinery.
• Dynamic fluid-film bearing clearance analysis in heavy industrial pumps.

Ordering Code Breakdown

Technical Specifications

Empirical Engineering Insights

Alternative Models & Compatibility

This 2.0-meter probe is engineered for systems configured for total lengths of either 5.0 meters or 9.0 meters. To operate within calibration specs, a 5.0-meter system requires a 3.0-meter extension cable, whereas a 9.0-meter system requires a 7.0-meter extension cable. Under no circumstances should probe cables and extension cables of differing system lengths (e.g., 5.0m extension mixed with 9.0m Proximitor) be cross-matched, as this will result in severe scale factor errors.

Application Pitfalls & Engineering Notes

When threading the M10 case into bracket mounts, ensure there is a minimum target clearance of 16 mm (twice the probe diameter) from adjacent metallic objects to prevent side-view cross-talk. Ground loops are a common source of industrial noise in proximity systems; ensure the coaxial connector connection is insulated from machine ground inside the junction box using the supplied connector protector sleeves.

Commissioning & Wiring Tips

Always verify the physical mechanical gap using a feeler gauge or a digital voltmeter reading raw bias voltage from the Proximitor prior to final locknut tightening. Standard gap voltage should read approximately -10 VDC when centered in the linear range on a standard 4140 steel target.

Installation Guidelines