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The 3300 XL 8 mm Proximity Transducer System consists of:

• a 3300 XL 8 mm probe

• a 3300 XL extension cable

• a 3300 XL Proximitor® Sensor1 The system provides an output voltage directly proportional to the distance between the probe tip and the observed conductive surface.

It is capable of both static (position) and dynamic (vibration) measurements, and is primarily used for vibration and position measurement applications on fluid-film bearing machines, as well as Keyphasor® and speed measurement applications2.

The 3300 XL 8 mm system represents our most advanced performance in an eddy current proximity transducer system.

The standard 3300 XL 8 mm 5 metre system is also 100% compliant with the American Petroleum Institute’s (API) 670 Standard (4th Edition) for mechanical configuration, linear range, accuracy, and temperature stability.

All 3300 XL 8 mm Proximity Transducer Systems achieve this level of performance while allowing complete interchangeability of probe, extension cable, and Proximitor® Sensor without the need for individual component matching or bench calibration.

Each component of the 3300 XL 8 mm Transducer System is backward compatible and interchangeable3 with other non-XL 3300 series 5 and 8 mm transducer system components4.

This includes the 3300 5 mm probe, which is used when an 8 mm probe is too large for the available mounting space5,6. Proximitor® Sensor The 3300 XL Proximitor® Sensor incorporates numerous improvements over previous designs.

Its physical packaging permits high-density DIN-rail installation. It can also be mounted in a traditional panel mount configuration, where it shares an identical “footprint” to older 4-hole mounted Proximitor® Sensor designs.

The mounting base for either option provides electrical isolation, eliminating the need for separate isolator plates.

The 3300 XL Proximitor® Sensor is highly immune to radio frequency interference, allowing installation in fiberglass housings without adverse effects from nearby radio frequency signals.

Improved RFI/EMI immunity allows the 3300 XL Proximitor® Sensor to achieve European CE mark approvals without requiring special shielded conduit or metallic housings, resulting in lower installation costs and complexity.

The 3300 XL’s SpringLoc terminal strips require no special installation tools and facilitate faster, more robust field wiring connections by eliminating screw-type clamping mechanisms that can loosen.