330174-00-04-20-02-CN Bently Nevada 3300 5mm Probe M8

Product Overview: Bently Nevada 330174-00-04-20-02-CN

The Bently Nevada 330174-00-04-20-02-CN is a 3300 series 5 mm proximity probe engineered for precise, non-contact displacement and vibration measurement in industrial turbomachinery. As part of the trusted 3300 family, this probe delivers engineering-grade precision for condition monitoring systems. Its armored construction and M8 x 1 threading ensure reliable installation in demanding environments. The probe features a polyphenylene sulfide (PPS) tip and an AISI 304 stainless steel case for chemical and corrosion resistance. With a 2.0-metre total length and a miniature coaxial ClickLoc connector, it integrates seamlessly with standard extension cables and proximitor systems. Weighing 0.323 kg, the probe balances robustness with ease of handling. This model carries a country-specific agency approval (CN), making it suitable for regional compliance requirements. Whether you are maintaining existing machinery or building a new monitoring system, the 330174-00-04-20-02-CN offers verified performance and long-term reliability.

Technical Specifications of the 330174-00-04-20-02-CN

• Input Voltage: Requires -17.5 Vdc to -26 Vdc at 12 mA maximum consumption.
• Output Resistance: 50 Ω.
• Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage.
• Probe DC Resistance: 7.88 ± 0.50 Ω from center conductor to outer conductor.
• Probe Tip Material: Polyphenylene sulfide (PPS).
• Probe Case Material: AISI 304 stainless steel (SST).
• Total Length: 2.0 metres (6.6 feet).
• Weight: 0.323 kg.

These specifications ensure the probe operates accurately within a -24 Vdc system and maintains signal integrity over its 2-metre length. The low output resistance and stable sensitivity are critical for reliable vibration data in high-speed rotating equipment.

Installation and Compatibility

Installing the 330174-00-04-20-02-CN requires attention to thread engagement and cable routing. The M8 x 1 thread allows a maximum engagement of 12 mm, ensuring a secure fit without over-torquing. The recommended probe case torque is 5.1 N·m (45 in·lb), with a maximum of 7.3 N·m (65 in·lb). The miniature coaxial ClickLoc connector provides a robust, quick-lock interface with standard extension cables. When routing the cable, maintain a minimum bend radius of 25.4 mm (1.0 in) to prevent damage. The probe operates with a -24 Vdc power supply and a 10 kΩ load, typical of Bently Nevada 3300 systems. For integration into existing monitoring networks, the probe pairs with 3300 XL proximitors and extension cables. Always verify compatibility with your specific system configuration. If you require assistance with cable lengths or connector options, contact AutoDCSTech with your exact requirements for precise matching.

Applications and Use Cases

The 330174-00-04-20-02-CN excels in applications requiring precise displacement measurement. For instance, in steam turbine monitoring, it detects shaft vibration and axial position with high accuracy. In centrifugal compressors, the probe provides critical data for surge prevention and bearing health. Additionally, its armored design suits harsh environments where mechanical protection is essential. The probe's wide temperature range (-35°C to +177°C) allows use in high-temperature zones, though exposure below -34°C may cause premature seal failure. With its country-specific approval, it meets regional regulatory demands.

Maintenance and Reliability

To ensure long-term reliability, inspect the probe periodically for physical damage or wear. Check cable integrity and connector tightness. Avoid exposing the probe to temperatures beyond its rated range. The PPS tip and stainless steel case resist most industrial chemicals, but verify compatibility with your process fluids. Following these practices maximizes service life and maintains measurement accuracy.