Product Overview
The Bently Nevada 330172-00-12-05-02-00 is a precision 5mm proximity probe designed for the 3300 series vibration monitoring systems. This industrial automation module features a robust armored construction, a 1/4-28 UNF thread, and a 0.5 meter total length with a miniature coaxial ClickLoc connector. Manufactured in the USA, this probe delivers reliable performance in critical rotating machinery applications, making it an ideal replacement or upgrade for existing 3300 system probes.
Technical Specifications
| Parameter |
Value |
| Product Type |
3300 5mm Probe with Armor |
| Unthreaded Length |
0 inches |
| Overall Case Length |
12 inches |
| Total Length |
0.5 meter (1.6 feet) |
| Connector |
Miniature coaxial ClickLoc (standard cable) |
| Agency Approval |
Not Required |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel |
| Thread |
1/4-28 UNF |
| Max Thread Engagement |
0.375 inches |
| Weight |
0.323 kg |
| Power Supply |
-17.5 Vdc to -26 Vdc, 12 mA max |
| Sensitivity |
<2 mV change per volt change |
| Output Resistance |
50 Ω |
| Probe DC Resistance (0.5m) |
7.45 ± 0.50 Ω |
| Cable Type |
75 Ω triaxial, FEP insulated |
| Tensile Strength |
222 N (50 lbf) |
| Connector Material |
Gold-plated brass or beryllium copper |
| Probe Case Torque |
5.1 N·m (45 in·lb) recommended, 7.3 N·m max |
| Connector-to-Connector Torque |
0.565 N·m (0.42 ft·lbf) max |
| Minimum Cable Bend Radius |
25.4 mm (1.0 in) |
| Probe Temperature Range |
-35°C to +177°C (-31°F to +351°F) |
| Thread Engagement Limits |
0.375 inches max |
Unless otherwise noted, specifications are for a proximity transducer system at +18°C to +27°C with -24 Vdc supply, 10 kW load, AISI 4140 steel target, and 1.27 mm gap.
Installation & Setup Guidance
When mounting the Bently Nevada 330172-00-12-05-02-00, drill and tap a 1/4-28 UNF mounting hole. Use a #3 or larger tap drill for proper thread engagement. The maximum thread engagement is 0.375 inches. Ensure the probe is clean and free of burrs before installation. Apply the recommended torque of 5.1 N·m (45 in·lb) to the probe case, not exceeding 7.3 N·m (65 in·lb). For the connector-to-connector connection, hand-tighten and then apply a maximum torque of 0.565 N·m (0.42 ft·lbf). Use a miniature coaxial ClickLoc connector for secure, vibration-resistant mating. Observe the minimum cable bend radius of 25.4 mm (1.0 in) to prevent cable damage.
Maintenance & Reliability
Regularly inspect the Bently Nevada 330172-00-12-05-02-00 for signs of physical wear, especially at the probe tip and cable entry points. The PPS tip resists chemical attack, but avoid prolonged exposure to temperatures below -34°C (-30°F) to prevent pressure seal failure. The armored probe case provides enhanced durability in high-vibration environments. Periodic torque checks on mounting and connector fasteners ensure consistent performance. The probe’s temperature schedule (T1 to T5) accommodates a wide ambient range from -55°C to +232°C, making it suitable for harsh industrial settings. Use a 75 Ω triaxial extension cable with FEP insulation for best signal integrity.
Selection Guide & Purchasing Advice
Before purchasing the Bently Nevada 330172-00-12-05-02-00, verify that your existing 3300 system accepts a 5mm probe with 1/4-28 UNF thread. Confirm the required total length (0.5m in this configuration) and connector type (miniature coaxial ClickLoc). If your application demands different cable length or connector options, consider alternative part numbers within the 330172 series. PLC Source PRO offers this genuine Bently Nevada probe and can provide expert guidance on system compatibility. When replacing an older probe, ensure the mounting hole is properly tapped and free of debris. The armored construction of this module extends service life in tough environments, reducing total cost of ownership.