Bently Nevada 330104-10-20-10-02-05 3300 XL 8 mm Proximity Probe

Why Choose the Bently Nevada 330104-10-20-10-02-05 for Your Vibration Monitoring Needs?

When machine downtime threatens production targets, accurate vibration measurement becomes critical. The Bently Nevada 330104-10-20-10-02-05 3300 XL 8 mm Proximity Probe delivers reliable shaft displacement data in harsh industrial environments. Designed for radial vibration and position monitoring, this metric probe offers a 2 mm linear range, robust construction, and global safety certifications.

Product Overview

The 330104-10-20-10-02-05 is part of the trusted 3300 XL series from Bently Nevada. This 8 mm proximity probe features a polyphenylene sulfide (PPS) tip and an AISI 303 or 304 stainless steel case. It uses an M10x1 thread with a maximum thread engagement of 15 mm. The probe includes a miniature coaxial ClickLoc connector with standard cable, and the total length is 1.0 meter (3.3 feet). Agency approvals include CSA, ATEX, and IECEx, making it suitable for hazardous area installations.

Technical Specifications Breakdown

Linear Range: 2 mm (80 mils), beginning at approximately 0.25 mm (10 mils) from the target and extending to 2.3 mm (90 mils). This corresponds to approximately –1 to –17 Vdc output.

Recommended Gap Setting: For radial vibration, set the gap to –9 Vdc, approximately 1.27 mm (50 mils).

Probe DC Resistance: At 1.0 m length, RPROBE is 7.59 ± 0.50 ohms from center conductor to outer conductor.

Temperature Range: Standard probe operates from –52°C to +177°C (–62°F to +350°F). Extended range versions are available for higher temperatures.

Relative Humidity: Less than 3% change in Average Scale Factor (ASF) when tested at 93% humidity per IEC 68-2-3 for up to 56 days.

Industry Applications

This probe excels in turbomachinery, compressors, pumps, and motors where precise shaft vibration and position measurement prevent catastrophic failures. Its 2 mm linear range covers typical clearance requirements in rotating equipment. The CSA, ATEX, and IECEx approvals allow installation in Class I, Zone 0 and Zone 2 hazardous areas when used with appropriate barriers or isolators per Bently Nevada drawings.

Installation & Setup Guidance

Proper installation ensures accurate readings. Use field wiring of 0.2 to 1.5 mm² (16 to 24 AWG) with a 3-conductor shielded triad cable and tinned ends. Maximum cable length between the probe and monitor is 305 meters (1,000 feet). For radial vibration, set the initial gap to –9 Vdc. Ensure the probe tip does not contact the target during operation. The M10x1 thread allows secure mounting with up to 15 mm engagement.

Maintenance & Reliability

The 330104-10-20-10-02-05 requires minimal maintenance. Inspect the probe cable and connector periodically for damage. Avoid exposing the probe to temperatures below –34°C (–30°F) to prevent premature pressure seal failure. The Viton O-ring provides reliable sealing, but the probe is not pressure tested before shipment. Contact Bently Nevada if pressure testing is required for your application.

Selection Guide & Purchasing Advice

Before ordering, verify your system requirements: probe length, connector type, and agency approvals. The 330104-10-20-10-02-05 includes a 1.0 m cable and miniature coaxial ClickLoc connector. For replacement or new installations, confirm compatibility with your existing 3300 XL Proximitor sensor and monitor. plcmatrix.com stocks this model and can advise on availability and alternatives if needed. Please verify current lifecycle status with plcmatrix.com before ordering.