330101-00-08-20-12-05 | Bently Nevada 8 mm Probe 2.0 m Cable

Cost-Effective Vibration Monitoring with the 330101-00-08-20-12-05

When unplanned downtime threatens your budget, the 330101-00-08-20-12-05 from Bently Nevada provides a robust, accurate solution for rotating machinery protection. This 3300 XL 8 mm probe, with a 3/8-24 UNF thread and 2.0 meter (6.6 feet) total length, is engineered to reduce maintenance costs and extend equipment life. Its patented TipLoc and CableLoc designs deliver 330 N (75 lbf) pull strength, minimizing cable failures and replacement expenses.

Key Features & Technical Specs of the 330101-00-08-20-12-05

• Linear Range: 2 mm (80 mils), starting at 0.25 mm (10 mils) from target.
• Incremental Scale Factor: 7.87 V/mm (200 mV/mil) ±5% for standard 5 or 1 meter systems.
• Probe Tip Material: Polyphenylene sulfide (PPS) for durability.
• Probe Case Material: AISI 303 or 304 stainless steel.
• Probe Temperature Range: -52°C to +177°C (-62°F to +350°F) standard.
• Probe DC Resistance: 7.88 ± 0.50 Ω at 2.0 m length.
• Approvals: CSA, ATEX, IECEx for hazardous environments.

The 8 mm probe body provides a thicker encapsulation of the coil in PPS plastic, resulting in a more rugged design that withstands physical abuse—reducing replacement frequency and long-term costs.

Real-World Applications & Cost Benefits

In petrochemical plants and power generation facilities, the 330101-00-08-20-12-05 monitors radial vibration on turbines, compressors, and pumps. Its 2 mm linear range and -9 Vdc recommended gap setting (approximately 1.27 mm) ensure accurate readings that help avoid catastrophic failures. By using this probe, operators can reduce unplanned downtime and extend the service intervals of critical machinery, directly improving ROI.

Installation & Setup Guidance

Mount the probe with a 3/8-24 UNF thread into a standard mounting hole. Use the miniature coaxial ClickLoc connector and FluidLoc cable for secure, leak-resistant connections. Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) 3-conductor shielded triad cable, with a maximum length of 305 meters (1,000 feet) to the 3300 XL Proximitor Sensor. Always follow the manufacturer’s manual for proper gap setting and torque values.

Maintenance & Reliability for Lower Total Cost

The 330101-00-08-20-12-05 is designed for long service life. Its Viton O-ring seals differential pressure between probe tip and case. Regularly inspect the probe cable and connector for wear, especially in high-vibration environments. The probe’s robust stainless steel case and PPS tip resist corrosion and physical damage, reducing the need for frequent replacements and lowering total ownership costs.

Compatibility & Integration

This probe works with Bently Nevada 3300 XL Proximitor sensors and monitoring systems. The standard incremental scale factor of 7.87 V/mm (200 mV/mil) ensures interchangeability with other 3300 XL components, simplifying system upgrades and spare parts management.

FAQs about the 330101-00-08-20-12-05

Q: What is the linear range of the 330101-00-08-20-12-05?

A: The linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target.

Q: What approvals does this probe have?

A: It has CSA, ATEX, and IECEx approvals for use in hazardous locations.

Q: What is the probe tip material?

A: The probe tip is made of polyphenylene sulfide (PPS) for durability.

Q: What is the recommended gap setting for radial vibration?

A: The recommended gap setting is -9 Vdc, approximately 1.27 mm (50 mils).

Q: What is the maximum field wiring length?

A: The maximum length between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet).

Product Support & Availability

The 330101-00-08-20-12-05 is available from Petro Auto Tech. In stock and ready to ship, this probe helps you maintain critical machinery without delay. Contact Petro Auto Tech for pricing and lead times.