Bently Nevada 330103-00-12-50-02-05 3300 XL 8 mm Proximity Probe

Technical Specifications Breakdown

Key parameters for the 330103-00-12-50-02-05 are listed below for quick reference:

Industry Applications

This probe is designed for radial vibration and position monitoring in rotating equipment. Typical applications include steam turbines, centrifugal compressors, gearboxes, and large pumps. The 2 mm linear range and recommended -9 Vdc gap setting provide consistent performance for machinery protection systems.

Compared to other proximity probes (e.g., 5 mm or 11 mm versions), the 8 mm diameter offers a balance between target clearance and sensitivity. The PPS tip resists harsh environments, and the stainless steel case ensures mechanical integrity.

Installation & Setup Guidance

Mount the probe using the M10 x 1 thread with a maximum engagement of 15 mm. Ensure the probe tip is clean and free of debris. For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable with tinned ends. The maximum field wiring length between the 3300 XL Proximitor Sensor and monitor is 305 meters (1,000 feet).

Set the initial gap to approximately -9 Vdc (1.27 mm or 50 mils) for radial vibration measurements. Verify the linear range (0.25 to 2.3 mm) using a calibration fixture. Do not exceed the temperature limits to avoid pressure seal failure.

Maintenance & Reliability

Inspect the probe cable and connector periodically for damage or wear. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. The probe is designed to seal differential pressure between tip and case using a Viton O-ring. If pressure testing is required, contact the custom design department.

Precision Vibration Monitoring for Critical Machinery

Reliable shaft vibration and position measurement is essential for protecting turbomachinery, compressors, and large pumps. The Bently Nevada 330103-00-12-50-02-05 3300 XL 8 mm Proximity Probe delivers the accuracy and durability required for continuous industrial monitoring.

This probe features a 5.0 meter (16.4 feet) total length with a miniature coaxial ClickLoc connector and standard cable. Its unthreaded length is 0 mm, overall case length is 120 mm, and it uses an M10 x 1 thread without armor. The probe tip is made of polyphenylene sulfide (PPS), and the case is constructed from AISI 303 or 304 stainless steel (SST).

Compatibility & Integration

The 330103-00-12-50-02-05 is compatible with Bently Nevada 3300 XL Proximitor Sensors and monitoring systems. It supports intrinsic safety when installed with approved zener barriers (drawing 141092) or galvanic isolators for Class I, Zone 0 environments. For non-incendive installations, use drawing 140979.

Selection Guide & Purchasing Advice

When selecting a proximity probe, consider the thread size, cable length, and environmental approvals. This model is suited for hazardous areas requiring CSA, ATEX, or IECEx certifications. Please verify current lifecycle status and availability with AutoDCSTech before ordering.