Product Introduction
When machinery vibration threatens production uptime, the Bently Nevada 330708-00-24-50-01-05 3300 XL 11 mm Proximity Probe delivers precise, consistent measurements. This probe is part of the trusted 3300 XL series, designed for non-contact displacement and vibration monitoring in rotating equipment. The 330708-00-24-50-01-05 features a 5/8-18 UNF thread, a 5.0-meter total probe length, and a miniature coaxial ClickLoc connector with connector protector for secure signal transmission. It comes with multiple agency approvals, making it suitable for diverse industrial environments.
Installation & Setup Guidance
Proper installation ensures optimal performance of the Bently Nevada 330708-00-24-50-01-05. The probe case thread is 5/8-18 with a maximum thread engagement of 0.938 inches. Recommended installation torque is 15.2 N·m (133 in·lb), never exceeding the maximum rated torque of 45.2 N·m (400 in·lb). For the connector, apply finger-tight torque with a maximum of 0.565 N·m (5 in·lb). The minimum bend radius for the probe cable is 25.4 mm (1.0 in), whether or not stainless steel armor is used. Always ensure the probe is aligned with the target surface for accurate readings.
Maintenance & Reliability
The 330708-00-24-50-01-05 is built for harsh conditions. The probe tip material is polyphenylene sulfide (PPS), and the case is AISI 304 stainless steel. The 75 Ω triaxial cable, insulated with fluoroethylene propylene (FEP), withstands temperatures from -52°C to +177°C (-62°F to +351°F). Note that exposing the probe to temperatures below -34°C (-30°F) may hasten pressure seal failure. The probe seals differential pressure between tip and case using a Viton O-ring; though not pressure-tested before shipment, it is designed for reliable sealing. Regular inspection of the cable and connector for damage is recommended to maintain signal integrity.
Troubleshooting & Common Issues
Common issues with proximity probes include cable breaks, connector corrosion, and seal leakage. The Bently Nevada 330708-00-24-50-01-05 addresses these with its robust FEP-insulated cable and corrosion-resistant connector protector. If you encounter erratic readings, check the probe DC resistance: for the 5.0-meter probe length, the resistance from center conductor to outer conductor is 7.2 ± 0.8 ohms. Any deviation may indicate a cable fault. Also verify that the probe torque is within the recommended range to avoid case damage. For extreme temperature applications, ensure operating conditions stay within the specified range to preserve the pressure seal.
Selection Guide & Purchasing Advice
Before ordering the Bently Nevada 330708-00-24-50-01-05, verify your system requirements: the 5-meter probe is designed for use with the five-meter Proximitor Sensor only. Confirm thread compatibility (5/8-18 UNF) and total probe length (5.0 meters). For bulk or urgent needs, contact UBEST Automation for availability and competitive pricing. Visit ubest101.myshopify.com for more industrial automation spares.