SKU: 330103-02-10-05-01-05

Bently Nevada 3300 XL 8 mm Proximity Probe 330103-02-10-05-01-05

The Bently Nevada 330103-02-10-05-01-05 is a 3300 XL 8 mm reverse mount proximity probe with 3/8-24 UNF threads and a 0.5-meter length. Designed for hazardous area use with multiple approvals, it provides critical vibration and position data for high-speed industrial rotating machinery.

Product Technical Description

The Bently Nevada 330103-02-10-05-01-05 belongs to the prestigious 3300 XL 8 mm Proximity Transducer System, which is the industry standard for eddy current displacement sensing. This probe operates by measuring the distance between its tip and a conductive metal target, typically a rotating machine shaft. Because the 3300 XL system offers a wide linear range and high accuracy, it enables the precise tracking of shaft vibration and position. This specific model features a rugged construction that withstands the extreme temperatures and high-pressure environments common in heavy industrial machinery.

Ordering Configuration and Specs

The alphanumeric code 330103-02-10-05-01-05 indicates a specific mechanical build. Below are the technical parameters for this configuration:

Model Series: 330103 (3300 XL 8 mm Reverse Mount Probe)
Thread Type: 3/8-24 UNF-2A thread
Unthreaded Length: 0.2 inches
Overall Case Length: 1.0 inch
Total Length: 0.5 meter (1.6 feet)
Connector Option: Miniature coaxial ClickLoc connector
Agency Approval: Multiple Approvals (Includes ATEX, IECEx, and CSA for hazardous areas)
Linear Range: 2.0 mm (80 mils)
Standard Scale Factor: 7.87 V/mm (200 mV/mil)
Frequency Response: 0 Hz to 10 kHz

Functional Benefits and Applications

The 330103 series excels in “reverse mount” applications where the probe is installed through the bearing housing or a specialized bracket. Furthermore, the probe tip consists of high-performance polyphenylene sulfide (PPS), which provides a superior seal against oil and moisture. This moisture resistance ensures that the signal remains stable even if the connection point is exposed to contaminants.

Industrial operators typically deploy this probe for:

Monitoring radial vibration to detect bearing wear or shaft imbalance
Measuring axial thrust position to prevent internal machine contact
Serving as a Keyphasor signal for phase reference and RPM tracking
Measuring eccentricity and differential expansion in steam turbines

System Integration and Longevity

The 330103-02-10-05-01-05 integrates seamlessly with 3300 XL extension cables and Proximitor sensors. Because Bently Nevada engineered the 3300 XL series for backward compatibility, this probe can often replace older 3300 or 7200 series 8 mm probes with minimal system adjustment. Additionally, the inclusion of the ClickLoc connector prevents the common issue of loose connections due to machinery vibration. By utilizing this proximity probe, plant managers ensure their monitoring systems receive the high-fidelity data required for advanced predictive maintenance and asset protection.