Bently Nevada 330102-00-20-30-12-CN 3300 XL 8 mm Proximity Probe

Technical Specifications Breakdown

Key parameters for the 330102-00-20-30-12-CN are listed below for quick reference:

Industry Applications

Turbine Shaft Vibration Monitoring

In steam and gas turbines, the 330102-00-20-30-12-CN probe provides non-contact measurement of radial shaft vibration. Its linear range of 2 mm (80 mils) and recommended -9 Vdc gap setting enable early detection of imbalance or misalignment, reducing unplanned downtime.

Compressor Protection

Centrifugal and axial compressors benefit from the probe's stable output over a wide temperature range (-52°C to +177°C). The stainless steel case and PPS tip resist oil and moisture, ensuring reliable data in harsh conditions.

Pump Position Sensing

The 3.0 meter (9.8 feet) cable length and miniature coaxial ClickLoc connector simplify installation in tight spaces. The probe's 8.17 Ω DC resistance (3.0 m) ensures consistent signal transmission to the Proximitor sensor.

Installation & Setup Guidance

Mount the 330102-00-20-30-12-CN probe using the 3/8-24 UNF thread with a maximum thread engagement of 0.563 inches. For field wiring, use 3-conductor shielded triad cable (0.2 to 1.5 mm² / 16 to 24 AWG) with tinned ends. The maximum distance between the Proximitor sensor and monitor is 305 meters (1,000 feet). Always verify the gap setting at -9 Vdc (approximately 1.27 mm / 50 mils) for radial vibration applications. Note that the 3-meter probe is designed for use with the 9-meter Proximitor sensor only.

Maintenance & Reliability

Inspect the probe cable and connector periodically for damage. The probe is not pressure tested before shipment; if a pressure seal test is required, contact the custom design department. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure. The probe's relative humidity tolerance (less than 3% change in ASF at 93% humidity per IEC 68-2-3) supports use in humid environments.

Reliable Vibration Sensing for Critical Machinery

Industrial rotating machinery demands precise, continuous monitoring to prevent catastrophic failures. The Bently Nevada 330102-00-20-30-12-CN is a 3300 XL 8 mm Proximity Probe engineered for accurate shaft vibration and position measurement in turbines, compressors, and pumps. This probe offers a robust design with a Polyphenylene sulfide (PPS) tip and AISI 303 or 304 stainless steel case, ensuring long-term stability in demanding environments.

Compatibility & Integration

This 3300 XL 8 mm 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, the probe can be used in Class I, Zone 0 hazardous areas (AEx/Ex ia IIC T5...T1 Ga). For non-incendive installations per drawing 140979, it is suitable for Class I, Zone 2 (AEx/Ex nA IIC T5…T1 Gc).

Selection Guide & Purchasing Advice

Choose the 330102-00-20-30-12-CN when you need a 3.0 meter (9.8 feet) probe with a 2-inch overall case length and no unthreaded length. The Country Specific Approval (CN) option ensures compliance with local regulations. For expert assistance and competitive pricing, contact AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering.