Bently Nevada 330103-00-03-90-02-00 3300 XL 8 mm Proximity Probe, Metric

Product Overview

The Bently Nevada 330103-00-03-90-02-00 is a 3300 XL 8 mm proximity probe designed for non-contact vibration and position measurement. It features a metric M10x1 thread, a 30 mm overall case length, and a 9.0 meter (29.5 feet) cable with a miniature coaxial ClickLoc connector. The probe tip is made of polyphenylene sulfide (PPS), and the case is AISI 303 or 304 stainless steel. This probe is part of the proven 3300 XL series, trusted for reliability in harsh industrial environments.

Technical Specifications Breakdown

Key parameters for the 330103-00-03-90-02-00 are listed below for quick reference:

Industry Applications

This probe is commonly used for radial vibration monitoring on steam turbines, compressors, and large pumps. The 9.0 meter cable length allows flexible routing from the probe to the proximitor sensor. The stainless steel case withstands corrosive environments, while the PPS tip offers durability. By maintaining the recommended -9 Vdc gap setting, engineers can ensure optimal sensitivity and avoid non-linearity at the extremes of the measurement range.

Installation & Setup Guidance

When installing the 330103-00-03-90-02-00, ensure the probe tip is clean and free of debris. Use the M10x1 thread to mount the probe securely, with a maximum thread engagement of 15 mm. For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable with tinned ends. The maximum distance between the proximitor sensor and the monitor is 305 meters (1,000 feet). Always verify the gap voltage with a multimeter before finalizing the installation.

Maintenance & Reliability

Inspect the probe cable and connector periodically for signs of wear or damage. The probe operates reliably in temperatures from -52°C to +177°C (-62°F to +350°F). Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. For applications requiring pressure testing, contact the custom design department.

Angle Selection: Failure Mode Analysis & Prevention

From a maintenance engineer's perspective, the Bently Nevada 330103-00-03-90-02-00 3300 XL 8 mm Proximity Probe is a critical component for early detection of shaft vibration and displacement. This article focuses on how proper selection and installation can prevent common failure modes in rotating machinery.

Compatibility & Integration

This probe is compatible with Bently Nevada 3300 XL proximitor sensors and monitoring systems. When installed with intrinsically safe zener barriers per drawing 141092 or galvanic isolators, it meets Class I, Zone 0: AEx/Ex ia IIC T5...T1 Ga and Class 1, Groups A, B, C, D, Class II, Groups E, F, G, Class III. For non-incendive installations, follow drawing 140979 for Class I, Zone 2: AEx/Ex nA IIC T5…T1 Gc.

Selection Guide & Purchasing Advice

When selecting a replacement probe, verify the cable length, thread size, and connector type match your existing system. The 330103-00-03-90-02-00 is a standard configuration with a 30 mm case and 9.0 m cable. Our team can help you confirm compatibility and provide a quotation.