Introduction
Is vibration drift or a failing probe signal quietly putting your critical turbomachinery at risk? The 146054-08-05-01-05 from Bently Nevada is a 3300 ceramic capped proximity probe built to deliver stable, repeatable displacement measurements in the harshest oil, gas and industrial environments. With a 0.5 metre cable, 3/8-24 UNF thread and CSA, ATEX and IECEx approvals, it is a practical, ready-to-ship choice for condition monitoring systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Probe case thread | 3/8-24 UNF |
| Overall case length | 0.8 in |
| Total length | 0.5 m (1.6 ft) |
| Connector | Miniature coaxial ClickLoc with protector |
| Agency approval | CSA, ATEX, IECEx |
| Probe tip material | Alumina ceramic (Al2O3) |
| Probe case material | AISI 304 stainless steel |
| Cable type | 75 Ω coaxial, FEP insulated |
| Temperature range | -51°C to +177°C |
| Pressure rating | 34 Bar (500 psi) nitrogen |
| Nominal DC resistance | 7.45 ± 0.50 ohms |
| Linear range | 1.52 mm (60 mils) |
Why the Ceramic Tip Matters
The alumina ceramic (Al2O3) tip is the standout feature. It resists abrasion and impact far better than standard probe tips, which means fewer replacements and less unplanned downtime. The AISI 304 stainless steel case adds corrosion resistance for offshore and coastal installations. With a linear range of 1.52 mm and an incremental scale factor of 7.87 V/mm, this probe gives your monitoring system the resolution needed to catch early rotor movement.
Applications Across Oil, Gas and Industry
In a refinery, this probe mounts on compressor bearing housings to track shaft vibration in real time. On a gas pipeline, it monitors turbine displacement where temperature swings are extreme. In a power plant, it watches feedwater pump rotors for misalignment. The 34 Bar pressure seal and -51°C to +177°C range mean it holds up where ordinary probes fail.
Integration and Compatibility
The 146054-08-05-01-05 works within Bently Nevada 3300 5 mm systems alongside a Proximitor sensor and extension cable. The miniature coaxial ClickLoc connector with protector simplifies field termination. When wiring into plant networks, remember that fieldbus integration may require an external gateway or connection module — confirm cables and gateways with your supplier before installation.
Selection and Maintenance Tips
Before ordering, verify your required cable length, thread type and agency approval against the machine’s monitoring system. Inspect the probe tip periodically for ceramic chipping and check cable insulation for abrasion. Keep spare probes on hand — fast dispatch, worldwide means Oil AutoTech can get you back online quickly. Contact Oil AutoTech today for pricing and availability.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
