Bently Nevada 330104-00-40-10-02-05 3300 XL 8 mm Proximity Probe

Product Overview

When rotating machinery vibration threatens unplanned downtime, the Bently Nevada 330104-00-40-10-02-05 3300 XL 8 mm Proximity Probe delivers precise, non-contact displacement measurement. This rugged probe monitors shaft vibration and position in critical assets like turbines, compressors, and pumps. Designed for harsh industrial environments, it features a polyphenylene sulfide (PPS) tip and AISI 303 or 304 stainless steel case for durability. With CSA, ATEX, and IECEx approvals, it meets global safety standards for hazardous area installations.

Technical Specifications

The 330104-00-40-10-02-05 uses an M10 x 1 thread and includes armor for added cable protection. Its unthreaded length is 00 mm, and the overall case length option is 40 mm. The total length option is 10, equaling 1.0 meter (3.3 feet). It features a miniature coaxial ClickLoc connector with FluidLoc cable and standard cable. The probe DC resistance (RPROBE) from center conductor to outer conductor is 7.59 ± 0.50 Ω at 1.0 m length. The probe tip material is polyphenylene sulfide (PPS), and the case material is AISI 303 or 304 stainless steel (SST). The probe is designed to seal differential pressure between tip and case using a Viton® O-ring.

Industry Applications

This proximity probe excels in vibration monitoring for steam turbines, centrifugal compressors, and large pumps. In a typical turbine installation, the 330104-00-40-10-02-05 mounts near the bearing to measure shaft radial vibration and axial position. Its 1.0 m cable length suits tight retrofit spaces, and the armored cable resists abrasion in high-vibration zones. The CSA, ATEX, and IECEx approvals allow safe use in explosive atmospheres common in oil and gas facilities.

Installation & Setup Guidance

Mount the probe using the M10 x 1 thread into a drilled and tapped hole per manufacturer specifications. Ensure the probe tip gap is set to 1.27 mm (50 mils) for optimal linear range when using a standard AISI 4140 steel target. The miniature coaxial ClickLoc connector simplifies cable attachment and reduces installation time. Verify the total cable length (probe + extension cable) matches system requirements to maintain calibration accuracy.

Maintenance & Reliability

Periodically inspect the probe tip and cable for physical damage or contamination. The PPS tip resists chemical attack, and the stainless steel case withstands corrosion in humid environments. The Viton® O-ring maintains seal integrity under differential pressure. Regular calibration checks against a known target ensure measurement accuracy. Because the probe is passive, it requires no routine internal maintenance beyond visual inspection.

Compatibility & Integration

This probe works exclusively with Bently Nevada 3300 XL 8 mm Proximitor Sensors and extension cables. It accepts one non-contacting 3300-series 5 mm or 3300 XL 8 mm probe and extension cable. The system requires -17.5 Vdc to -26 Vdc power (with non-incendive circuit per drawing 140979 at 12 mA max consumption) or -23 Vdc to -26 Vdc with barriers. Output resistance is 50 Ω, and sensitivity is less than 2 mV change per volt change in input voltage.

Selection Guide & Purchasing Advice

Before ordering, verify the required thread size (M10 x 1), cable length (1.0 m), and agency approvals (CSA, ATEX, IECEx). The 330104-00-40-10-02-05 is a direct replacement for earlier 3300 XL probes in similar applications. For current availability and lifecycle status, contact plcmatrix.com, a trusted supplier of Bently Nevada automation components.