Description

The Bently Nevada 330101-00-40-05-01-00 is an unarmored 8 mm proximity probe belonging to the 3300 XL 8 mm Proximity Transducer System. This specific configuration features a fully threaded 4.0-inch case length (0.0 inches unthreaded), a total probe cable length of 0.5 meters (1.6 feet), and is equipped with a standard cable and a miniature coaxial ClickLoc connector with an integrated connector protector. It does not require agency approvals (00 approval option).

Designed for non-contact vibration and shaft position measurements, this probe operates on the eddy-current principle. It is engineered to pair seamlessly with 3300 XL extension cables and 330180 series Proximitor sensors, forming a high-accuracy, reliable condition monitoring chain. This sensor provides continuous, high-speed feedback on shaft radial vibration, rotor axial displacement, and thermal growth, making it a critical asset for machinery protection programs.

Features

• Fully Threaded Case: Built with 0.0 inches of unthreaded length, enabling flexible mounting in compact or shallow bearing housing environments.
• Standard Robust Cable: Features high-temperature, FEP-insulated 75 Ohm triaxial cable that stands up to harsh conditions inside machine casings.
• Connector Protector: Equipped with a robust protective sleeve that secures the miniature coaxial ClickLoc connection, guarding against turbine oil, moisture, and mechanical strain.
• Eddy-Current Sensing: Non-contact measurement technology avoids wear and tear, ensuring long-term continuous measurement.
• Unarmored Design: Tailored for clean routing runs or installation inside protective conduit systems.

Applications

• Shaft radial vibration and dynamic motion analysis on high-speed rotating machinery.
• Axial rotor position and thrust displacement monitoring.
• Permanent protection and condition monitoring systems on steam and gas turbines.
• Rotor displacement and wear monitoring on industrial compressors, pumps, and gearboxes.
• Balance-of-plant rotating machine health integration via Bently Nevada 3500 monitoring racks.

Ordering Information

Technical Specifications

Installation Guidelines

• Probe Gap Calibration: Mount the probe with the appropriate physical gap per system requirements (typically 1.27 mm / 50 mils for standard calibration target). Verify output voltage using a volt meter.
• Torque Limits: Tighten the probe case to a recommended mounting torque of 11.2 N-m (100 in-lbf). Do not exceed the maximum rated torque of 33.9 N-m (300 in-lbf) to prevent damaging threads or the internal assembly.
• Cable Bend Radius: Maintain a minimum cable bend radius of 25.4 mm (1.0 in) along the probe lead routing to preserve cable impedance and signal integrity.
• Connector Protection: Ensure that the ClickLoc coaxial connection is clean and dry. Hand-tighten the click connector and verify the connector protector is fully secured over the junction to block contaminants.
• Routing and Shielding: Route the probe cable through dedicated protective conduit or terminal boxes, and implement appropriate grounding practices to shield signals from electromagnetic interference.

Compliance and Certifications

This 330101-00-40-05-01-00 model corresponds to option 00 (no agency approvals required). It is designed for use in standard, non-hazardous general-purpose industrial environments. The device meets standard safety and manufacturing specifications and is RoHS compliant.