330173-00-02-20-02-05 | Bently Nevada 3300 5mm Probe, M8

Product Overview: Bently Nevada 330173-00-02-20-02-05

The Bently Nevada 330173-00-02-20-02-05 is a 5mm proximity probe from the 3300 series, engineered for exact displacement and vibration measurement in industrial machinery. With an M8 x 1 thread and a 2.0-metre total length, this probe integrates seamlessly into turbine, compressor, and motor monitoring systems. Its unthreaded length of 0 mm and overall case length of 20 mm ensure a compact, precise fit. The probe features a polyphenylene sulfide (PPS) tip and an AISI 304 stainless steel case, delivering durability in harsh environments. Weighing 0.323 kg, it balances robustness with ease of installation.

Key Features & Technical Specifications

• Input Voltage: Requires -17.5 Vdc to -26 Vdc at 12 mA maximum consumption.
• Output Resistance: 50 Ω for stable signal transmission.
• Isolation: Probe DC resistance from center to outer conductor: 7.88 ± 0.50 Ω at 2.0 m.
• Connector: Miniature coaxial ClickLoc connector with standard cable.
• Temperature Range: -35°C to +177°C (-31°F to +351°F).
• Materials: PPS tip, AISI 304 stainless steel case.
• Weight: 0.323 kg.

The probe's sensitivity is less than 2 mV change per volt change in input voltage, ensuring engineering-grade accuracy. Its 75 Ω triaxial FEP-insulated cable minimizes signal degradation.

Installation and Setup

Install the 330173-00-02-20-02-05 with a recommended probe case torque of 5.1 N·m (45 in·lb) and a maximum of 7.3 N·m (65 in·lb). The M8 x 1 thread allows a maximum thread engagement of 12 mm. Maintain a minimum cable bend radius of 25.4 mm (1.0 in) to prevent damage. For connector-to-connector torque, refer to the official datasheet. Ensure the target is AISI 4140 steel and gap the probe at 1.27 mm (50 mils) for optimal linear range.

Maintenance and Reliability

Periodically inspect the probe for wear, especially in high-vibration applications. The PPS tip and stainless steel case resist corrosion and mechanical stress. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure. In 60 Hz magnetic fields up to 300 Gauss, the probe exhibits minimal output voltage variation (e.g., 0.0014 mil pp/gauss at 50 mil gap), ensuring reliable performance.

Compatibility and Integration

This probe is compatible with Bently Nevada 3300 series proximitor sensors and extension cables. The miniature coaxial ClickLoc connector ensures secure mating. For integration into fieldbus networks, an external gateway or connection module may be required; confirm cables and gateways with the supplier.