Bently Nevada 330104-00-20-10-01-05 3300 XL 8 mm Proximity Probe, Metric

Product Overview

When unplanned downtime threatens your rotating machinery, the Bently Nevada 330104-00-20-10-01-05 3300 XL 8 mm proximity probe provides reliable, high-precision vibration and position monitoring. This metric probe features a rugged M10x1 thread with armor, a 200mm overall case length, and a 1.0 meter (3.3 feet) cable with a miniature coaxial ClickLoc connector and connector protector. Designed for harsh industrial environments, it carries CSA, ATEX, and IECEx approvals for hazardous area use.

Technical Specifications

The 330104-00-20-10-01-05 delivers a linear range of 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target and extending to 2.3 mm (90 mils). The recommended gap setting for radial vibration is -9 Vdc, corresponding to about 1.27 mm (50 mils). Probe tip material is polyphenylene sulfide (PPS), and the case is AISI 303 or 304 stainless steel. The probe weighs 323 g/m (11.4 oz) and has a nominal DC resistance of 7.59 ± 0.50 ohms at 1.0m length. Operating temperature range is -52°C to +177°C (-62°F to +350°F) for the standard probe.

Industry Applications

This proximity probe excels in monitoring radial vibration and axial position of turbines, compressors, pumps, and motors. In a typical refinery application, the 330104-00-20-10-01-05 provides early warning of shaft misalignment or bearing wear, directly reducing maintenance costs and preventing catastrophic failures. Its high-temperature tolerance and robust stainless steel construction make it ideal for continuous operation in demanding environments.

Installation Guidance

Proper installation ensures accurate readings. Use 3-conductor shielded triad cable with tinned field wiring (0.2 to 1.5 mm² / 16 to 24 AWG). Maximum field wiring length between the probe and monitor is 305 meters (1,000 feet). The probe case thread is M10x1, with a maximum thread engagement of 15 mm. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure.

Maintenance and Reliability

Regular inspection of the probe tip and cable for physical damage extends service life. The Viton® O-ring pressure seal should be verified periodically, especially in high-temperature or high-humidity environments. The probe shows less than a 3% change in Average Scale Factor (ASF) when tested in 93% humidity per IEC 68-2-3 for up to 56 days, indicating excellent long-term stability. Routine checks reduce unplanned downtime and lower total cost of ownership.

Buying Guide

Before purchasing, verify that the probe length, cable type, and agency approvals match your application requirements. The 330104-00-20-10-01-05 is available as a new or surplus unit from plcmatrix.com, a trusted supplier of industrial automation components. Contact plcmatrix.com for current pricing, availability, and lifecycle status.