Product Overview
The Bently Nevada 146054-036-50-02-05 is a 3300 Series ceramic capped proximity probe built for reliable shaft vibration and position measurement in oil, gas, and industrial automation applications. This probe features a 3/8-24 UNF case thread, a 3.6-inch overall case length, and a 5.0-meter total cable length with a miniature coaxial ClickLoc connector. The ceramic (Al2O3) probe tip resists wear in harsh environments, while the AISI 304 stainless steel case delivers mechanical durability.
Key Specifications
Linear Range and Output
The 146054-036-50-02-05 offers a linear range of 1.52 mm (60 mils), beginning approximately 0.25 mm (10 mils) from the target and extending to 1.78 mm (70 mils). This corresponds to an output of approximately -4 to -16 Vdc. The Incremental Scale Factor (ISF) is 7.87 V/mm (200 mV/mil) ±6.5% over the linear range from 0°C to +45°C. These values assume a -24 Vdc power supply, a 10 kΩ load, and an AISI 4140 steel target. For accurate results, use only 3300 XL system components.
Environmental and Mechanical Ratings
The probe operates and stores from -51°C to +177°C (-60°F to +351°F). It is pressure-rated to seal 34 Bar (500 psi) nitrogen. The probe case thread is 3/8-24 UNF, with a maximum thread engagement length of 0.563 inches. The standard cable is 75 Ω coaxial, FEP-insulated, and available in total probe lengths of 0.5, 1, 2, 5, or 9 meters. This unit is configured with a 5.0 m cable.
Agency Approvals
The 146054-036-50-02-05 carries CSA, ATEX, and IECEx approvals (option -05). The temperature schedule for EPL Ga and Gc classifications ranges from T1 (-55°C to +232°C) down to T5 (-55°C to +40°C). For EPL Dc, the T-class ratings vary by ambient temperature.
Comparison with Similar Probes
| Feature | 146054-036-50-02-05 | Standard 3300 Probe (no ceramic cap) | 3300 XL Armored Probe |
|---|---|---|---|
| Tip Material | Alumina ceramic (Al2O3) | Polyphenylene sulfide (PPS) | Alumina ceramic (Al2O3) |
| Case Thread | 3/8-24 UNF | 3/8-24 UNF | 3/8-24 UNF |
| Cable Length | 5.0 m | 0.5–9 m options | 0.5–9 m options |
| Armor | Without armor | Without armor | With armor |
| Agency Approval | CSA, ATEX, IECEx | Varies by option | Varies by option |
| Pressure Seal | 34 Bar (500 psi) | 34 Bar (500 psi) | 34 Bar (500 psi) |
Ceramic-tipped probes like this one resist abrasive wear better than standard PPS tips, making them a practical choice for extended service intervals. The unarmored design keeps the probe flexible for tight routing, while the 5 m length suits applications where the Proximitor Sensor sits farther from the measurement point.
Applications and Integration
The 146054-036-50-02-05 suits steam turbine shaft monitoring, compressor vibration measurement, and pump position feedback in oil and gas facilities. Its ATEX and IECEx approvals allow installation in hazardous areas when correctly configured. The 5 m probe length pairs specifically with a 5 m Proximitor Sensor for a matched system. If you are wiring into a plant network, confirm cable and gateway requirements with your supplier — fieldbus integration may require an external connection module.
Selection and Maintenance Tips
Before ordering, verify the probe length matches your existing Proximitor Sensor and extension cable. The 146054-036-50-02-05 is designed for use with a 5 m Proximitor Sensor only. Inspect the ceramic tip periodically for chips or wear, and check cable insulation for abrasion. Follow the manufacturer’s safety manual for all maintenance. For fast dispatch and hands-on technical selection help, contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
