Product Overview
The Bently Nevada 330172-00-12-10-02-CN is a precision 5mm proximity probe designed for reliable vibration monitoring in critical industrial rotating machinery. This 3300 series probe features a rugged 1/4-28 UNF thread with armor, making it ideal for harsh environments. With a polyphenylene sulfide (PPS) tip and AISI 304 stainless steel case, the 330172-00-12-10-02-CN delivers accurate displacement measurements for early fault detection and prevention.
Technical Specifications
| Parameter |
Value |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 304 stainless steel (SST) |
| Probe Case Thread |
1/4-28 UNF |
| Maximum Thread Engagement Length |
0.375 inches |
| Weight |
0.323 kg |
| Power Supply |
-17.5 Vdc to -26 Vdc at 12 mA max consumption |
| Output Resistance |
50 W |
| Probe DC Resistance (1.0 m length) |
7.59 ± 0.50 Ω |
| Tensile Strength |
222 N (50 lbf) probe case to lead; 222 N (50 lbf) lead to extension cable connectors |
| Probe Case Torque (recommended) |
5.1 N·m (45 in·lb) |
| Probe Case Torque (maximum) |
7.3 N·m (65 in·lb) |
| Connector-to-Connector Torque (maximum) |
0.565 N·m (0.42 ft·lbf) |
| Minimum Cable Bend Radius |
25.4 mm (1.0 in) |
| Probe Temperature Range |
-35°C to +177°C (-31°F to +351°F) |
Real-World Applications
The Bently Nevada 330172-00-12-10-02-CN is extensively used in turbomachinery, compressors, pumps, and fans for continuous vibration monitoring. By providing precise shaft displacement data, this probe helps operators detect imbalance, misalignment, and bearing wear early, preventing unplanned downtime and costly repairs. Its robust construction ensures stable performance in high-temperature and high-pressure environments, making it a cost-effective choice for critical asset protection.
Installation Guide
Proper installation is essential for accurate readings. When drilling and tapping a mounting hole for the 1/4-28 probe, use a #3 or larger tap drill. Apply the recommended probe case torque of 5.1 N·m (45 in·lb) and do not exceed the maximum of 7.3 N·m (65 in·lb). Ensure the probe gap is set correctly per the system specifications. The 330172-00-12-10-02-CN uses a miniature coaxial ClickLoc connector (standard cable provided). Verify cable routing to avoid sharp bends below the minimum bend radius of 25.4 mm.
Maintenance Tips
Regularly inspect the probe cable for cuts or abrasions. Keep connectors clean and dry. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent pressure seal failure. In normal operation, the probe withstands temperatures from -35°C to +177°C. Periodic gap verification ensures continued accuracy. Following these practices extends the service life of the 330172-00-12-10-02-CN, reducing total cost of ownership.
Purchasing Guide
When selecting the Bently Nevada 330172-00-12-10-02-CN, confirm the total length option (1.0 metre in this model) and connector type (Miniature coaxial ClickLoc). Verify compatibility with your monitoring system. For genuine, in-stock units with fast shipping, trust PLC Source PRO—your reliable partner for industrial automation spares.