Precision Vibration Monitoring with the 3300 XL 8 mm Probe
Unplanned downtime in rotating machinery often stems from undetected shaft vibration or displacement. The Bently Nevada 330102-00-48-05-02-00 3300 XL 8 mm Proximity Probe provides the accurate, real-time data needed to prevent such failures. This component is engineered for continuous monitoring of radial vibration and axial position in critical assets like turbines, compressors, and pumps.
Technical Specifications Breakdown
Key parameters for the 330102-00-48-05-02-00 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Product Type | 3300 XL 8 mm Proximity Probe |
| Thread Type | 3/8-24 UNF with armor |
| Unthreaded Length Option | 0.0 in |
| Overall Case Length Option | 4.8 in |
| Total Length Option | 0.5 meter (1.6 feet) |
| Connector and Cable Type | 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 (0.5 m) | 7.45 ± 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) |
| Standard Probe Temperature Range | -52°C to +177°C (-62°F to +350°F) |
| Maximum Thread Engagement | 0.563 in |
Solving Real-World Vibration Challenges
In petrochemical plants, a sudden shaft vibration spike can halt production for days. This probe’s 2 mm linear range captures early warning signs within 0.25 to 2.3 mm from the target, enabling operators to schedule maintenance before catastrophic failure. Its PPS tip and stainless steel case withstand harsh environments, while the miniature coaxial ClickLoc connector simplifies field replacement.
Installation and Setup Guidance
For reliable readings, ensure the probe case thread (3/8-24 UNF) engages no more than 0.563 inches into the mounting boss. Use 3-conductor shielded triad cable with tinned field wiring (0.2 to 1.5 mm² or 16 to 24 AWG). The maximum field wiring length between the Proximitor Sensor and monitor is 305 meters (1,000 feet). Set the initial gap to -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration monitoring.
Maintenance and Reliability
Inspect the probe cable and connector periodically for wear, especially in high-temperature zones. The probe is designed to seal differential pressure with a Viton® O-ring; avoid exposing it to temperatures below -34°C (-30°F) to prevent premature pressure seal failure. For extended temperature ranges, the probe tip can operate up to +218°C (+425°F), while the cable and connector handle up to +260°C (+500°F).
Compatibility and Integration
This probe works with Bently Nevada 3300 XL Proximitor Sensors and monitors. When installed with intrinsically safe zener barriers per drawing 141092 or galvanic isolators, it meets Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga and Class I, Groups A, B, C, D, Class II, Groups E, F, G, Class III. For non-incendive circuits per drawing 140979, it qualifies as Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc.
Selection Guide and Purchasing Advice
When ordering the 330102-00-48-05-02-00, confirm your required cable length, connector type, and agency approvals. AutoDCSTech stocks genuine Bently Nevada parts to support your critical machinery monitoring needs. Please verify current lifecycle status and availability with AutoDCSTech before ordering.


Availability & Condition at AutoDCSTech
| Part Number | 330102-00-48-05-02-00 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
