Product Introduction: Bently Nevada 330171-05-63-05-02-CN Proximity Probe
The Bently Nevada 330171-05-63-05-02-CN is a 5mm proximity probe designed for non-contact vibration and position measurement of rotating machinery. Part of the 3300 series, this probe features a 1/4-28 UNF thread, unarmored construction, and a 0.5 meter total length with a miniature coaxial ClickLoc connector. It is manufactured in the USA and built to withstand harsh industrial environments.
Key Technical Specifications
Below are the critical specifications of the Bently Nevada 330171-05-63-05-02-CN proximity probe, based on manufacturer data.
| Parameter |
Value |
| Power Supply |
-17.5 Vdc to -26 Vdc at 12 mA max |
| Sensitivity |
Less than 2 mV change per volt change |
| Output Resistance |
50 Ω |
| Probe DC Resistance (0.5m) |
7.45 ± 0.50 Ω |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Temperature Range |
-35°C to +177°C |
| Probe Case Torque |
5.1 N·m (45 in·lb) recommended, 7.3 N·m (65 in·lb) max |
| Minimum Cable Bend Radius |
25.4 mm (1.0 in) |
| Weight |
0.323 kg |
Industry Applications
The Bently Nevada 330171-05-63-05-02-CN is ideal for monitoring shaft vibration in turbines, compressors, pumps, and motors. In a typical steam turbine installation, this probe detects radial vibration, allowing early detection of imbalances or bearing wear. With a 0.5 meter cable and miniature ClickLoc connector, it integrates easily into existing proximity transducer systems.
Installation & Setup Guidance
When mounting the Bently Nevada 330171-05-63-05-02-CN, use a #3 or larger tap drill for the 1/4-28 mounting hole. The maximum thread engagement is 0.375 inches. Apply the recommended torque of 5.1 N·m (45 in·lb) and do not exceed 7.3 N·m (65 in·lb). Ensure the cable bend radius is at least 25.4 mm (1.0 inch) to avoid stress. The probe must be gapped at 1.27 mm (50 mils) for optimal performance with an AISI 4140 steel target.
Maintenance & Reliability
Routine inspection of the Bently Nevada 330171-05-63-05-02-CN should focus on cable integrity and connector cleanliness. The probe is rated for temperatures from -35°C to +177°C. Avoid exposing the probe below -34°C to prevent pressure seal failure. The gold-plated connectors ensure reliable electrical contact. Periodic re-torque checks are recommended to maintain mounting security.
Troubleshooting Common Issues
If the probe output is erratic, verify the power supply is between -17.5 and -26 Vdc. Operation above -23.5 Vdc may reduce linear range. Check for magnetic field interference; at 60 Hz up to 300 Gauss, the probe output can vary by 0.0004 mil pp/gauss at a 10 mil gap. Ensure the cable bend radius is not exceeded. If the signal is noisy, inspect the ClickLoc connector for damage.
Selection Guide & Purchasing Advice
Before purchasing the Bently Nevada 330171-05-63-05-02-CN, verify your system requirements: total length of 0.5 meter, miniature coaxial ClickLoc connector, and country-specific agency approval (CN). This probe is unarmored; consider armored options if mechanical protection is needed. PLC Source PRO offers this genuine Bently Nevada part with guaranteed authenticity. For compatibility questions, contact our technical team.