330171-00-40-05-02-00 Bently Nevada 5mm Probe 0.5m

Product Overview: Bently Nevada 330171-00-40-05-02-00

From a maintenance engineer's perspective, the Bently Nevada 330171-00-40-05-02-00 is a precision 5mm proximity probe engineered for continuous shaft vibration and position monitoring. This unit features a 1/4-28 UNF thread, a 0.5 meter total length, and a miniature coaxial ClickLoc connector. Its PPS probe tip and AISI 304 stainless steel case deliver reliable performance in harsh industrial environments. With a weight of just 0.323 kg, it is designed for exact installation and long-term serviceability.

Key Specifications and Performance Data

The 330171-00-40-05-02-00 operates with a -17.5 Vdc to -26 Vdc power supply, drawing a maximum of 12 mA. For engineering-grade precision, note that operation at a more positive voltage than -23.5 Vdc can reduce linear range. The output resistance is 50 Ω, and the probe DC resistance is 7.45 Ω ± 0.50 from center to outer conductor. The probe temperature range spans -35°C to +177°C. The 75 Ω triaxial FEP-insulated cable ensures signal integrity. The maximum thread engagement is 0.375 in, and the recommended probe case torque is 5.1 N·m (45 in·lb), with a maximum of 7.3 N·m (65 in·lb).

Installation and Maintenance Guidance

When drilling and tapping a mounting hole for this 1/4-28 probe, a #3 or larger tap drill is recommended. The minimum cable bend radius is 25.4 mm (1.0 in). For reliable operation, maintain the probe gap at 1.27 mm (50 mils) with an AISI 4140 steel target. From a service perspective, inspect the probe tip and cable periodically for wear or contamination. Avoid exposing the probe to temperatures below -34°C (-30°F), as this may cause premature pressure seal failure. The connector-to-connector torque should not exceed 0.565 N·m (0.42 ft·lbf).

Integration and Compatibility

The 330171-00-40-05-02-00 integrates with Bently Nevada 3300 series monitoring systems. Its miniature coaxial ClickLoc connector ensures a secure, repeatable connection. The probe is without armor, offering flexibility in routing. For precise matching with your existing transducers and extension cables, contact AutoDCSTech with your exact requirements.