Product Overview
The Bently Nevada 330102-00-40-50-02-00 is a 3300 XL 8 mm Proximity Probe designed for precise vibration and position measurement in rotating machinery. This probe features a 3/8-24 UNF thread with armor, a 4.0-inch overall case length, and a 5.0-meter (16.4 feet) cable terminated with a miniature coaxial ClickLoc connector. The probe tip is made of polyphenylene sulfide (PPS), and the case is constructed from AISI 303 or 304 stainless steel, ensuring durability in harsh industrial environments. This model is intended for use with the 5-meter Proximitor sensor only.

Technical Specifications Breakdown
Key parameters for the 330102-00-40-50-02-00 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Product Type | 3300 XL 8 mm Proximity Probe |
| Thread Size | 3/8-24 UNF |
| Unthreaded Length Option | 0 in |
| Overall Case Length Option | 4.0 in |
| Total Length Option | 5.0 meters (16.4 feet) |
| Connector and Cable-Type Option | Miniature coaxial ClickLoc connector, standard cable |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303 or 304 stainless steel (SST) |
| Nominal Probe DC Resistance (5.0 m) | 8.73 ± 0.50 Ω |
| Linear Range | 2 mm (80 mils) from 0.25 to 2.3 mm (10 to 90 mils) |
| Recommended Gap Setting for Radial Vibration | -9 Vdc [approximately 1.27 mm (50 mils)] |
| Probe Weight | 323 g/m (11.4 oz) |
| Operating and Storage Temperature (Standard Probe) | -52°C to +177°C (-62°F to +350°F) |
| Extended Temperature Range Probe Tip | -52°C to +218°C (-62°F to +425°F) |
| Extended Temperature Range Probe Cable and Connector | -51°C to +260°C (-60°F to +500°F) |
| Probe Relative Humidity | Less than 3% change in ASF when tested at 93% humidity per IEC 68-2-3 for up to 56 days |
| Hazardous Area Approvals (with intrinsic safety barriers) | Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga; Class I, Groups A, B, C, D; Class II, Groups E, F, G; Class III |
| Hazardous Area Approvals (with nonincendive circuit) | Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc; Class I, Division 2, Groups A, B, C, D; Class I, Zone 2: AEx/Ex ec IIC T5…T1 Gc |
Industry Applications
The 2 mm linear range and -9 Vdc recommended gap setting provide accurate displacement measurements for early fault detection. In the oil and gas industry, the probe's hazardous area approvals (Ex ia IIC T5...T1 Ga) allow installation in Zone 0 environments when used with appropriate intrinsic safety barriers. The PPS tip and stainless steel case resist corrosion from process fluids and high humidity, making the probe suitable for offshore platforms and chemical plants.

Installation & Setup Guidance
When installing the 330102-00-40-50-02-00, ensure the target surface is clean and electrically continuous. The probe must be used exclusively with the 5-meter Proximitor sensor to maintain proper linearization and sensitivity. Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable with tinned ends. The maximum distance between the Proximitor sensor and the monitor is 305 meters (1,000 feet). For radial vibration measurements, set the initial gap to approximately -9 Vdc (1.27 mm or 50 mils) from the target. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure.
Maintenance & Reliability
Periodically inspect the probe cable and connector for damage, especially in high-vibration or high-temperature areas. The probe's Viton O-ring provides a differential pressure seal between the tip and case; if the seal integrity is critical, contact the custom design department for pressure testing. The probe is designed for less than 3% change in Average Scale Factor (ASF) when subjected to 93% relative humidity for up to 56 days per IEC 68-2-3. For extended temperature applications, the probe tip can withstand up to 218°C (425°F) and the cable up to 260°C (500°F).
Compatibility & Integration
This probe is part of the 3300 XL platform and is compatible with Bently Nevada 3300 XL Proximitor sensors and monitoring systems. The miniature coaxial ClickLoc connector simplifies field replacement and ensures a secure connection. When used with intrinsically safe zener barriers (per drawing 141092) or galvanic isolators, the probe achieves Class I, Zone 0 approval. For nonincendive installations (per drawing 140979), it meets Class I, Zone 2 requirements.
Selection Guide & Purchasing Advice
When selecting a replacement probe, verify the thread size (3/8-24 UNF), overall case length (4.0 inches), and total cable length (5.0 meters). The 330102-00-40-50-02-00 is a standard configuration with no agency approval option. For applications requiring pressure seal testing or custom lengths, consult the manufacturer. AutoDCSTech stocks this Bently Nevada probe and can assist with lifecycle status verification. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Troubleshooting & Common Issues
If the probe output is erratic, check the cable and connector for damage or moisture ingress. Verify that the field wiring resistance does not exceed the recommended limits and that the shield is properly grounded. If the gap voltage drifts, inspect the target surface for contamination or runout. For high-temperature environments, ensure the probe is within the extended temperature range and that the cable is not exposed to temperatures above 260°C (500°F). If the pressure seal fails, the probe may require replacement; contact the custom design department for testing options.
Availability & Condition at AutoDCSTech
| Part Number | 330102-00-40-50-02-00 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
