What Is the 146055-90-02-05?
Is vibration monitoring downtime putting your turbine at risk? The Bently Nevada 146055-90-02-05 answers that challenge. It is a 3300 Ceramic Capped Reverse Mount Probe with a 9.0 m total length, a 3/8-24 UNF thread, and a Miniature ClickLoc coaxial connector. This new, original unit ships in factory packing and suits oil, gas, and industrial automation machinery protection.

Technical Specifications
| Specification | Value |
|---|---|
| Model | 3300 Ceramic Capped Reverse Mount Probes |
| Part Number | 146055-90-02-05 |
| Total Length | 9.0 m (29.5 ft) |
| Probe Case Thread | 3/8-24 UNF |
| Connector | Miniature ClickLoc coaxial, standard cable |
| Agency Approval | Multiple Approvals |
| Probe Tip Material | Alumina ceramic (Al2O3) |
| Probe Case Material | AISI 304 stainless steel |
| Cable | 75 Ω coaxial, FEP insulated |
| Temperature Range | -51°C to +177°C (-60°F to +351°F) |
| Pressure Rating | 34 Bar (500 psi) nitrogen |
| Nominal DC Resistance | 9.87 ± 0.90 ohms |
Why the 146055-90-02-05 Fits Your Monitoring System
A 9.0 m probe reaches across large machine housings without extra extension cable. The ceramic tip resists wear in high-temperature zones up to +177°C. The 3/8-24 UNF thread and reverse mount design simplify installation in tight spaces. The Miniature ClickLoc connector locks quickly and stays secure under vibration.

Applications in Oil, Gas, and Industrial Automation
In a gas compressor station, this probe monitors radial vibration on a turbine shaft. The ceramic cap handles heat and abrasion. In a refinery, it watches pump bearings where space is limited. The reverse mount thread fits cramped housings. For pipeline motors, the 9 m length reaches remote measurement points, reducing cable runs and installation cost.
Installation and Maintenance Tips
Mount the probe with the 3/8-24 UNF thread. Keep the target within the linear range of 0.25 to 1.78 mm (10 to 70 mils). Use a -24 Vdc supply and a 10 kW load for best results. Inspect the ceramic tip periodically for wear or buildup. Check cable insulation for cracks. Follow the manufacturer’s safety manual for all maintenance.
Integration and Compatibility
The 146055-90-02-05 works with 3300 5 mm system components, including Proximitor Sensors and extension cables. The Miniature ClickLoc connector mates with standard 3300 series cables. When wiring into fieldbus networks, you may need an external gateway or connection module. Confirm cables and gateways with your supplier.
Selection Checklist
Before ordering, verify the total length (9.0 m), connector type (Miniature ClickLoc), and thread (3/8-24 UNF). Confirm the agency approval option (-05) meets your site requirements. Oil AutoTech offers hands-on technical selection help and fast dispatch, worldwide. Please verify current lifecycle status and availability with Oil AutoTech before ordering.
FAQs
Q: What is the total length of the 146055-90-02-05?
A: It is 9.0 meters (29.5 feet).
Q: What connector does this probe use?
A: It uses a Miniature ClickLoc coaxial connector with standard cable.
Q: What is the probe tip material?
A: The tip is alumina ceramic (Al2O3).
Q: What is the operating temperature range?
A: The probe operates from -51°C to +177°C (-60°F to +351°F).
Q: Is this probe compatible with 3300 XL systems?
A: It is designed for 3300 5 mm systems. Contact Oil AutoTech for compatibility details.
