Bently Nevada 330101-30-49-10-02-05 3300 XL 8 mm Probe, 3/8-24 UNF Thread

Product Overview

The Bently Nevada 330101-30-49-10-02-05 is a 3300 XL 8 mm Probe with a 3/8-24 UNF thread, designed without armor. This probe is engineered for reliable vibration and position measurement in critical rotating machinery. It features a patented TipLoc molding method for a robust bond between the probe tip and body, and a CableLoc design providing 330 N (75 lbf) pull strength. The probe is suitable for applications requiring high accuracy and durability in harsh industrial environments.

Technical Specifications Breakdown

Key parameters for the 330101-30-49-10-02-05 are listed below for quick reference:

Industry Applications

Its robust design and agency approvals (CSA, ATEX, IECEx) make it suitable for use in hazardous areas. The 8 mm probe diameter provides thicker encapsulation and a stronger case, offering enhanced resistance to physical abuse compared to smaller probes. For applications where oil or liquid leakage through the cable interior is a concern, the optional FluidLoc cable option can be specified.

Installation & Setup Guidance

When installing the probe, ensure the case thread (3/8-24 UNF) is engaged to a maximum length of 0.563 in. Use the recommended torque of 11.2 N•m (100 in•lbf) for standard forward mounted probes (first three threads: 7.5 N•m or 66 in•lbf). The recommended gap setting for radial vibration is -9 Vdc, corresponding to approximately 1.27 mm (50 mils). Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable, with a maximum length of 305 meters (1,000 feet) between the Proximitor Sensor and the monitor.

Maintenance & Reliability

Periodically inspect the probe and cable for physical damage, especially in high-vibration environments. The probe is designed to seal differential pressure between the tip and case using a Viton® O-ring. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal. The probe's relative humidity performance shows less than 3% change in Average Scale Factor (ASF) when tested at 93% humidity for up to 56 days per IEC standard 68 2 3.

Selection Guide & Purchasing Advice

When selecting a probe, consider the total length, thread type, and agency approval requirements. The 330101-30-49-10-02-05 offers a 1.0 meter total length with CSA, ATEX, and IECEx approvals, making it a versatile choice for global applications. For availability and lifecycle status, contact AutoDCSTech before ordering. AutoDCSTech stocks genuine Bently Nevada parts to ensure reliable operation of your monitoring systems.

Troubleshooting & Common Issues

If the probe output is unstable, verify the gap setting and ensure the target surface is clean and within the linear range (0.25 to 2.3 mm). Check cable connections for damage or corrosion. If the probe is exposed to temperatures outside the specified range, the pressure seal may fail. For persistent issues, consult the full manual or contact AutoDCSTech for support.