Overview
From a maintenance engineer's perspective, the Bently Nevada 330102-00-20-50-02-00 is a 3300 XL 8 mm proximity probe designed for precise shaft vibration and position measurement. This probe uses a polyphenylene sulfide (PPS) tip and a stainless steel case for durability in harsh environments. Its 5.0-meter cable with a miniature coaxial ClickLoc connector simplifies installation and ensures signal integrity. The 330102-00-20-50-02-00 is built to deliver reliable data for predictive maintenance, reducing unplanned downtime.

Technical Specifications Breakdown
Key parameters for the 330102-00-20-50-02-00 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Product Type | 3300 XL 8 mm Proximity Probe |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303 or 304 stainless steel (SST) |
| Total Length | 5.0 meters (16.4 feet) |
| Connector Type | Miniature coaxial ClickLoc connector, standard cable |
| Linear Range | 2 mm (80 mils) |
| Recommended Gap Setting for Radial Vibration | -9 Vdc [approximately 1.27 mm (50 mils)] |
| Probe Temperature Range (Standard) | -52°C to +177°C (-62°F to +350°F) |
| Probe Weight | 323 g/m (11.4 oz) |
Industry Applications
The 5.0-meter cable length suits installations where the Proximitor sensor is mounted near the machine, ensuring accurate signal transmission. The stainless steel case withstands industrial environments, while the PPS tip resists chemical exposure.

Installation and Setup Guidance
For reliable operation, mount the probe with the 3/8-24 UNF thread engaging up to 0.563 inches maximum. Use field wiring of 0.2 to 1.5 mm² (16 to 24 AWG) with a three-conductor shielded triad cable. The maximum field wiring length between the Proximitor sensor and monitor is 305 meters (1,000 feet). Set the initial gap to -9 Vdc for radial vibration applications. Ensure the probe tip is clean and free of debris before installation.
Maintenance and Reliability
Inspect the probe cable and connector periodically for signs of wear or damage. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure. The probe is designed to seal differential pressure between tip and case using a Viton O-ring. For applications requiring pressure seal testing, contact the custom design department. The probe's humidity resistance ensures less than 3% change in Average Scale Factor (ASF) after 56 days at 93% humidity per IEC 68-2-3.
Compatibility and Integration
This 5.0-meter probe is designed for use with the 5 meter Proximitor sensor only. It supports intrinsic safety when installed with approved zener barriers per drawing 141092 or galvanic isolators, achieving Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga. For non-incendive installations, use drawing 140979 for Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc. Verify compatibility with your monitoring system before ordering.
Selection Guide and Purchasing Advice
When selecting a replacement probe, confirm the thread size (3/8-24 UNF), cable length (5.0 meters), and connector type (ClickLoc). The 330102-00-20-50-02-00 is a standard probe without agency approval options. For extended temperature ranges up to +218°C probe tip, consider alternative models. Contact AutoDCSTech for availability and lifecycle status before ordering. We stock genuine Bently Nevada parts to support your maintenance needs.
Availability & Condition at AutoDCSTech
| Part Number | 330102-00-20-50-02-00 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
