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  • Polyphenylene sulfide probe tip material
  • Imperial or metric measurements available
  • AISI 303 or 304 SST probe case material
  • Fluoroethylene propylene (FEP) insulated probe cable
  • -31 to 351°F (-35 to 177°C) operating temp


The Bently Nevada 3300 XL Proximity Probe delivers the most advanced performance in the eddy current proximity transducer systems. The standard 3300 XL 8mm 5-metre system also fully complies with the American Petroleum Institute's (API) 670 Standard (4th Edition) for mechanical configuration, linear range, accuracy, and temperature stability. All 3300 XL 8mm proximity transducer systems provide this level of performance and support complete interchangeability of probes, extension cables, and Proximitor sensors, eliminating the need to match or bench calibrate individual components.

The 3 parts of the system must have consistent electrical lengths. The electrical length of the proximity probe plus the electrical length of the extension cable must equal the electrical length of the Proximitor.

Each 3300 XL 8 mm Transducer System component is backward-compatible and interchangeable with other non-XL 3300 series 5mm and 8mm transducer system components. This compatibility includes the 3300 5mm probe, for applications in which an 8mm probe is too large for the available mounting space.

The 3300 XL Proximitor Sensor incorporates numerous improvements over previous designs. Its physical packaging allows you to use it in high-density DIN rail installations. You can also mount the sensor in a traditional panel mount configuration, where it shares an identical 4-hole mounting "footprint" with older Proximitor Sensor designs. The mounting base for either option provides electrical isolation and eliminates the need for separate isolator plates. The 3300 XL Proximitor Sensor is highly immune to radio frequency interference, allowing you to install it in fiberglass housings without adverse effects from nearby radio frequency signals. The 3300 XL Proximitor Sensor's improved RFI/EMI immunity satisfies European CE mark approvals without requiring special shielded conduit or metallic housings, resulting in lower installation costs and complexity.