330172-00-94-10-02-00 Bently Nevada 5mm Probe 1/4-28 Armored

Problem: Unreliable Shaft Vibration Data in Harsh Environments

Industrial turbines and compressors often operate under extreme conditions that degrade standard proximity probes. Consequently, maintenance teams face false trips and missed faults. The Bently Nevada 330172-00-94-10-02-00 solves this with a 5mm armored probe designed for 3300 series systems. Its AISI 304 stainless steel case and PPS tip resist corrosion and wear. Furthermore, the 1/4-28 UNF thread ensures secure mounting in tight spaces. This probe delivers engineering-grade precision for critical machinery protection.

Solution: Key Features of the 330172-00-94-10-02-00

• Armored Construction: AISI 304 stainless steel case with armor protects against mechanical damage.
• Precise Threading: 1/4-28 UNF thread with 0.375 in maximum engagement for stable installation.
• ClickLoc Connector: Miniature coaxial ClickLoc connector ensures reliable signal transmission.
• Optimized Length: 1.0 m total length with 9.4 in case and 0 in unthreaded length.
• Temperature Resilience: Operates from -35°C to +177°C for high-temperature applications.
• Electrical Specs: Requires -17.5 Vdc to -26 Vdc at 12 mA maximum; 50 Ω output resistance.

Problem: Signal Degradation and Electrical Noise

Electrical noise and voltage fluctuations can corrupt vibration signals, leading to inaccurate readings. The 330172-00-94-10-02-00 addresses this with a sensitivity of less than 2 mV change per volt input change. Additionally, its 75 Ω triaxial FEP-insulated cable minimizes interference. The probe DC resistance of 7.59 ± 0.50 Ω ensures consistent performance. Therefore, you get verified data for predictive maintenance.

Solution: Technical Specifications

Problem: Installation Complexity and Torque Errors

Incorrect torque during probe installation can damage threads or cause loose connections. The 330172-00-94-10-02-00 has a recommended probe case torque of 5.1 N·m (45 in·lb) and a maximum of 7.3 N·m (65 in·lb). For connector-to-connector, the recommended torque is 0.565 N·m (0.42 ft·lbf). Also, a minimum cable bend radius of 25.4 mm (1.0 in) prevents cable damage. When drilling mounting holes, use a #3 or larger tap drill. These exact specifications ensure proper installation.

Solution: Applications and Integration

This probe integrates seamlessly with Bently Nevada 3300 series monitors. It suits steam turbines, gas turbines, and centrifugal compressors. The 5mm probe diameter allows use in limited spaces. Because of its armored design, it withstands harsh industrial environments. For 60 Hz magnetic fields, the probe output is 0.0004 to 0.0045 mil pp/gauss depending on gap. This ensures minimal interference. Contact AutoDCSTech with your exact requirements for precise matching.

Problem: Maintenance and Longevity

Probes exposed to extreme temperatures may fail prematurely. The 330172-00-94-10-02-00 operates from -35°C to +177°C, but exposure below -34°C can cause pressure seal failure. Therefore, inspect periodically for wear and verify cable integrity. The PPS tip and stainless steel case resist most chemicals. However, always follow the manufacturer's safety manual. With proper care, this probe delivers long service life.