Description
Bently Nevada 330705-02-18-90-00-05
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330705-02-18-90-00-05 |
| Mount Type | Reverse mount |
| Thread Type | 3/8-24 UNF |
| Unthreaded Length | 0.2 inch |
| Overall Case Length | 1.8 inch |
| Total Cable Length | 9.0 meters (29.5 feet) |
| Connector Type | Miniature ClickLoc coaxial connector |
| Agency Approval | Multiple Approvals (CE, UL, CSA) |
| Probe Tip Diameter | 11 mm |
| Sensitivity | 3.94 V/mm (100 mV/mil) ±10% |
| Linear Range | 4.0 mm (160 mils) |
| Frequency Response | 0 to 8 kHz |
| DC Resistance | 8.5 ± 1.1 Ω |
| Temperature Range | -52°C to +177°C (-62°F to +351°F) |
| Weight | 0.07 kg (probe only) |
Functional Features The 9.0 meter cable length eliminates the need for an intermediate extension cable in many remote installation scenarios. The probe features the patented TipLoc and CableLoc designs for maximum durability. The ClickLoc connector provides secure coaxial connection without special tools. The multiple agency approval option ensures compliance with international safety standards for hazardous and non-hazardous installations.
Application Scenarios Power plant generator monitoring, chemical mixer shaft measurement, oil refinery pump monitoring, paper production line equipment, remote monitoring installations where sensor electronics must be located away from the probe, large turbine differential expansion measurement, reciprocating compressor rod drop monitoring in hazardous area classifications.
Performance Parameters The 9.0 meter probe length increases DC resistance to 8.5 ± 1.1 Ω. The system sensitivity remains at 3.94 V/mm with linearity within ±0.025 mm over the central 2 mm range. The frequency response extends from 0 to 10 kHz for the standard proximity system. The probe maintains performance specifications across the full -52°C to +177°C temperature range.
Material Composition Probe tip is polyphenylene sulfide (PPS) with high chemical resistance. Probe case is AISI 304 stainless steel. Cable is 75 Ω triaxial with FEP insulation. The pressure seal material is Viton. Connector material is gold-plated brass.
Structural Characteristics The reverse mount design with 3/8-24 UNF threads is optimized for confined space installations. The 9.0 meter integral cable is protected by FEP insulation and rated for harsh industrial environments. The overall construction is designed for 1,000 g shock resistance with 0.5 ms half-sine pulse. The insulation resistance exceeds 1×10¹² Ω at 25°C.
Working Principle The probe generates an eddy current field at the tip that interacts with a conductive target surface. The Proximitor Sensor measures the energy loss from the induced eddy currents and outputs a DC voltage proportional to the physical gap. The 9.0 meter cable transmits the RF signal between the probe tip and the Proximitor Sensor with minimal signal degradation due to the triaxial shielded construction.
