Bently Nevada 330104-02-12-50-02-00 3300 XL 8 mm Proximity Probe

Product Introduction

When unplanned machinery downtime threatens production targets, the Bently Nevada 330104-02-12-50-02-00 3300 XL 8 mm Proximity Probe provides the precise vibration and position data you need to protect critical rotating equipment. This metric probe features a 5.0-meter (16.4 feet) cable, M10x1 thread, and a rugged polyphenylene sulfide (PPS) tip housed in AISI 303 or 304 stainless steel. Designed for use with the 5 meter Proximitor sensor only, it delivers reliable performance in demanding industrial environments.

Technical Specifications Breakdown

The 330104-02-12-50-02-00 offers a linear range of 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target. The recommended gap setting for radial vibration is -9 Vdc, roughly 1.27 mm (50 mils). Nominal probe DC resistance measures 8.73 ± 0.50 ohms from center conductor to outer conductor. The probe operates and stores within a temperature range of -52°C to +177°C (-62°F to +350°F) for the standard version. Field wiring accepts 0.2 to 1.5 mm² (16 to 24 AWG) with a maximum length of 305 meters (1,000 feet) between the Proximitor sensor and monitor.

Industry Applications

This proximity probe excels in monitoring radial vibration and axial position of turbines, compressors, pumps, and motors in oil and gas, power generation, and heavy manufacturing. The 5.0-meter cable length suits installations where the sensor must be placed at a moderate distance from the machine train. The PPS tip and stainless steel case resist harsh process conditions, while the M10x1 thread simplifies mounting in standard metric ports. For retrofitting older systems, the 330104-02-12-50-02-00 directly replaces legacy Bently Nevada probes, ensuring seamless integration with existing 3300 XL monitoring systems.

Installation & Setup Guidance

Mount the probe using the M10x1 thread with a maximum engagement length of 15 mm. Use a 3-conductor shielded triad cable with tinned field wiring for best signal integrity. Set the initial gap to -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration measurements. Ensure the target surface is clean and free of magnetic or conductive debris. For hazardous locations, the probe can be installed with intrinsically safe zener barriers per drawing 141092 or with galvanic isolators for Class I, Zone 0 applications.

Maintenance & Reliability

Regularly inspect the probe cable and connector for wear or damage, especially in high-vibration or high-temperature environments. The probe sealing material uses a Viton O-ring to maintain differential pressure between tip and case. Although probes are not pressure tested before shipment, routine visual checks help ensure seal integrity. Exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal, so plan installations accordingly. Following these practices extends service life and reduces unplanned downtime.

Selection Guide & Purchasing Advice

Before ordering, verify that your system requires a 5-meter probe compatible with the 5 meter Proximitor sensor. Confirm the thread size (M10x1) and unthreaded length (20 mm) match your mounting bracket or adapter. The miniature coaxial ClickLoc connector simplifies field installation. For current lifecycle status and availability, please verify with plcmatrix.com, a trusted supplier of new, surplus, and obsolete Bently Nevada components. Their team can confirm stock and recommend alternatives if needed.