Product Overview
The Bently Nevada 330171-00-16-05-02-05 is a 5mm proximity probe designed for precise vibration and position measurement in industrial rotating machinery. As part of the 3300 series, this probe features a 1/4-28 UNF thread, a polyphenylene sulfide (PPS) tip, and AISI 304 stainless steel case. With a 0.5 meter (1.6 feet) cable and a miniature coaxial ClickLoc connector, it delivers reliable performance in harsh environments. This model replaces older probe designs and simplifies upgrades to modern monitoring systems.
Technical Specifications
The 330171-00-16-05-02-05 operates within a -17.5 Vdc to -26 Vdc power range, consuming 12 mA maximum. It requires a -24 Vdc supply for optimal linear range. Output resistance is 50 Ω, and sensitivity shows less than 2 mV change per volt change. The probe DC resistance from center to outer conductor is 7.45 ± 0.50 Ω. The probe cable is 75 Ω triaxial FEP insulated. Tensile strength is 222 N (50 lbf) at case-to-lead and lead-to-extension connectors. Connector material is gold-plated brass or beryllium copper. Probe case torque recommended at 5.1 N·m (45 in·lb), maximum 7.3 N·m (65 in·lb). Maximum connector-to-connector torque is 0.565 N·m (0.42 ft·lbf). Minimum cable bend radius is 25.4 mm (1.0 in). Probe temperature range is -35°C to +177°C.
Installation & Setup Guidance
When installing the 330171-00-16-05-02-05, ensure the mounting hole is drilled and tapped for a 1/4-28 thread. Use a #3 or larger tap drill. Maximum thread engagement is 0.375 inches. Mount the probe with the recommended torque of 5.1 N·m to avoid damage. The probe case threads are 1/4-28. Always gap the probe at 1.27 mm (50 mils) for standard calibration using an AISI 4140 steel target. Avoid exposing the probe to temperatures below -34°C to prevent premature seal failure.
Maintenance & Reliability
Regular inspection of the probe cable and connector is essential for reliable operation. The 330171-00-16-05-02-05 uses gold-plated connectors resistant to corrosion. The PPS tip withstands high temperatures and chemical exposure. For long-term reliability, maintain ambient temperature within probe limits: -55°C to +232°C (EPL Ga/Gc T1) or as per the temperature schedule. Degradation can occur if exposed to excessive vibration or overtightening. Proactive replacement of older probes with this model reduces unexpected downtime and extends system life.
Selection Guide & Purchasing Advice
Before purchasing the 330171-00-16-05-02-05, verify compatibility with your monitoring system, particularly the power supply range (-17.5 to -26 Vdc) and connector type (miniature coaxial ClickLoc). This probe suits applications requiring a 5mm sensing face and 1/4-28 thread. It is ideal for replacing worn or obsolete probes in turbomachinery, compressors, and pumps. For a reliable supply chain, consider PLC Source PRO as your partner for genuine Bently Nevada parts. Ensure you have the correct probe length (0.5 m) and agency approvals (Multiple Approvals, option 05).