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Bently Nevada 330103-00-06-10-02-00 – 3300 XL 8 mm Proximity Probe for Shaft Vibration and Position
The 330103 is Bently Nevada’s 3300 XL 8 mm non‑contact eddy‑current proximity probe, used with a matching 3300 XL Proximitor sensor and extension cable to measure radial shaft vibration, axial (thrust) position, and rotor-to-stator clearance. It’s the go‑to sensing element for API‑670 machine protection on turbines, compressors, large pumps, and generators. From my experience, the 3300 XL family is valued because it stays stable over temperature and delivers consistent calibration when all three components are matched.
Key Features
- 3300 XL ecosystem – Works as a matched system (probe + extension cable + Proximitor sensor) for accurate machine protection and diagnostics.
- 8 mm tip for general machinery – A practical choice for standard radial bearing measurements and many thrust collar applications.
- Stable scale factor – When paired with the proper 3300 XL Proximitor, the system typically provides a nominal 200 mV/mil (≈7.87 mV/µm).
- Rugged construction – Probe and cable materials are designed for industrial environments with vibration, oil mist, and thermal cycling.
- Flexible mounting options – Compatible with common probe brackets, housings, and adjustable probe holders used around sleeve bearings.
- Hazardous area builds available – Many options carry ATEX/IECEx/CSA approvals; exact approvals depend on the option code.
- Backwards/forwards compatibility – Designed to integrate cleanly with 3500/3701/Adapt monitoring systems via the Proximitor’s buffered outputs.
Technical Specifications
| Brand / Model | Bently Nevada 330103-00-06-10-02-00 (3300 XL 8 mm Proximity Probe) |
| Sensor Type | Non-contact eddy‑current proximity probe (8 mm tip) |
| System Scale Factor | Nominal 200 mV/mil (≈7.87 mV/µm) when used with matching 3300 XL Proximitor and extension cable |
| Measurement Uses | Radial shaft vibration/position; thrust (axial) position; shaft–seal/clearance monitoring |
| Signal I/O | Probe connects to 3300 XL extension cable; output is provided by the Proximitor sensor to the monitor |
| Compatibility | 3300 XL Proximitor sensors and extension cables of the same system length |
| Operating Environment | Industrial; temperature and approvals per option code/datasheet (use inside suitable machinery housings) |
| Option String Note | The option codes (‑00‑06‑10‑02‑00) define mechanical build, system length, connectors, and approvals; it appears this build specifies a 10 m system length—please confirm against your installed Proximitor and extension cable. |
BENTLY 330103-00-06-10-02-00
Application Fields
You’ll typically see 3300 XL 8 mm probes on critical rotating assets where continuous protection is mandatory:
- Gas and steam turbines – radial bearing vibration and thrust position
- Centrifugal/reciprocating compressors – shaft vibration and rod drop (with suitable brackets)
- Large pumps and fans – bearing vibration with API‑670 alarm limits
- Motors and generators – casing/shaft proximity where access allows
- Gearboxes and expanders – shaft dynamic measurements for condition monitoring
Advantages & Value
- Reliability – Proven 3300 XL design that, in many cases, runs for years without drift when components are properly matched.
- Compatibility – Direct fit with standard Bently Nevada brackets, Proximitor sensors, and 3500/Insight/TDI systems.
- Lower lifecycle cost – Consistent calibration reduces nuisance alarms and rework during outages.
- Serviceability – Field technicians appreciate the predictable bias voltage and easy gap adjustment during commissioning.
BENTLY 330103-00-06-10-02-00
Installation & Maintenance
- Mounting & gap – Install in a rigid probe holder aimed at a clean, flat shaft surface. Set the cold gap so the Proximitor bias is near mid‑range (typically around −10 to −12 V), then verify runout.
- System matching – Always match probe, extension cable, and Proximitor by type and system length; mixing lengths usually skews scale factor.
- Cable routing – Use protected routing with proper bend radius; keep away from high‑energy cables and provide strain relief at the holder.
- Grounding – Follow Bently Nevada grounding/shielding guidance to minimize electrical noise on low‑level signals.
- Routine checks – Inspect probe tips for debris buildup, confirm tight hardware, verify bias and OK status during outages, and record shaft runout data.
- Spares – Keeping a spare probe of the same option code on hand typically shortens recovery after unexpected damage.
BENTLY 330103-00-06-10-02-00
Quality & Certifications
- CE compliant; RoHS conformity for electronic assemblies (region dependent)
- Hazardous area approvals such as ATEX/IECEx/CSA available on specific options
- Manufactured under ISO 9001 quality systems
- Manufacturer’s warranty typically 1 year; extended service programs available in many cases
If you can share your existing Proximitor and extension cable part numbers, I’ll double‑check the system length and option match for 330103‑00‑06‑10‑02‑00 before shipment. That small step usually prevents calibration headaches later.
