Bently Nevada Machinery Condition Monitoring -- 3300 XL 11 mm Proximity Transducer System

Time:Nov 29,2025

The 3300 XL 11 mm proximity sensor is designed to measure position or vibration in the 0 to 8 kHz frequency range. The 3300 XL 11 mm proximity sensor system features a 3.94 V/mm (100 mV/mil) output for non-contact vibration and displacement measurements in hydrodynamic bearing equipment. Compared to the standard 3300 XL 8 mm sensor system, this sensor system has a larger 11 mm probe tip, resulting in a longer linear measurement range. It is primarily used in applications requiring a longer linear range, such as:

Axial (thrust) position measurement
Steam turbine ramp differential pressure measurement
Reciprocating compressor piston rod position or piston rod drop measurement
Tachometer and zero-speed measurement
Phase reference (key phase) signal

The 3300 XL 11 mm proximity sensor is intended to replace the 7200 series 11 mm and 14 mm sensor systems. When upgrading from a 7200 series system to a 3300 XL 11 mm system, all components must be replaced with 3300 XL 11 mm components. Additionally, the monitoring system must be updated. If using a 3500 monitoring system, the configuration software needs to be updated to list the 3300 XL 11 mm sensor system as a compatible option. Existing 3300 monitoring systems may require modification. Although the terminals and connectors of the proximity sensor are protected against electrostatic discharge (ESD), reasonable precautions should be taken during operation to avoid ESD. The 3300 XL 11 mm proximity sensor has the same advanced features as the 3300 XL 8 mm proximity sensor. Its slim design allows it to be mounted on high-density DIN rails or in more traditional panel-mount configurations. Improved RF/EMI immunity allows the 3300 XL proximity sensor to achieve European CE certification without any special installation considerations. This RF interference immunity also protects the sensor system from adverse effects from nearby high-frequency radio signals. The SpringLoc terminals on the proximity sensor allow for faster and more secure field wiring without the need for special installation tools. The proximity probe and extension cable are included. The 3300 XL 11 mm probe is available in various probe housing configurations, including armored and unarmored ½-20, 5/8-18, M14 x 1.5, and M16 x 1.5 threads. The reverse-mounted 3300 XL 11 mm probe comes standard with a 3/8-24 or M10 x 1 thread. All components of the sensor system use gold-plated brass ClickLoc connectors. ClickLoc connectors lock in place to prevent loosening. The TipLoc molding process creates a secure connection between the probe tip and the probe body.

The 3300 XL 11 mm proximity sensor system includes:

1. 3300 XL 11 mm probe
3300 XL 11 mm Proximity Probes
330701 3300 XL 11 mm Probe, 1/2-20 UNF thread, without armor
330702 3300 XL 11 mm Probe, 1/2-20 UNF thread, with armor
330707 3300 XL 11 mm Probe, 5/8-18 UNF thread, without armor
330708 3300 XL 11 mm Probe, 5/8-18 UNF thread, with armor
3300 XL 11 mm Proximity Probes, Metric
330703 3300 XL 11 mm Probe, M14 x 1.5 thread, without armor
330704 3300 XL 11 mm Probe, M14 x 1.5 thread, with armor
330709 3300 XL 11 mm Probe, M16 x 1.5 thread, without armor
330710 3300 XL 11 mm Probe, M16 x 1.5 thread, with armor
3300 XL 11 mm Reverse Mount Probe
330705-02-18- CC-DD-EE 3/8-24 UNF threads
330706-005-046- CC-DD-EE M10 x 1 threads

2. 3300 XL 11 mm Proximitor Sensor
330780 3300 XL 11 mm Proximitor Sensor

3. 3300 XL 11 mm extension cable
330730 3300 XL 11 mm Extension Cable

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