Description
Bently Nevada 330851-07-000-010-10-01-05
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330851-07-000-010-10-01-05 |
| Probe Case Type | Smooth 1.5 inch diameter, rear exit |
| Unthreaded Length | 0 mm |
| Overall Case Length | 10 mm |
| Total Cable Length | 1.0 meter (3.3 feet) |
| Armor Option | With armor |
| Agency Approval | Multiple Approvals |
| Probe Tip Diameter | 25 mm |
| Sensitivity | 0.787 V/mm (20 mV/mil) nominal |
| Linear Range | 12.7 mm (500 mils) |
| Frequency Response | 0 to 2.7 kHz typical |
| Operating Temperature | -35°C to +200°C (-31°F to +392°F) continuous |
| Peak Temperature | +250°C (482°F) for less than 24 hours |
| Weight | 300 g (10.6 oz) with armor |
Functional Features The 10 mm case length provides an ultra-compact installation profile for applications with severe space constraints. The smooth 1.5 inch diameter case is designed for mounting in a close-fitting bore or housing. The rear exit cable configuration routes the cable directly behind the probe. The armored cable provides mechanical protection in harsh environments. The probe features front and rear seals with FluidLoc cable.
Application Scenarios Ultra-compact steam turbine differential expansion monitoring, installations with extremely limited mounting depth, bore-mounted applications in small housings, generator shaft monitoring in confined spaces, machinery with minimal probe protrusion requirements, applications requiring smooth case mounting without threads.
Performance Parameters The probe delivers 0.787 V/mm sensitivity with linearity within system specifications over the 12.7 mm range. Despite the ultra-short case length, the probe maintains full temperature and accuracy specifications. The 1.0 meter cable has a DC resistance of 6.2 ± 0.5 Ω. The system maintains all hazardous area certifications.
Material Composition Probe tip is polyetheretherketone (PEEK). Probe case is AISI 304 stainless steel. Cable is 75 Ω triaxial with PFA-insulated FluidLoc construction. Armor is flexible stainless steel. Connector material is gold-plated brass.
Structural Characteristics The probe features a smooth 1.5 inch diameter cylindrical case with rear exit cable port. The 10 mm case length is the minimum standard configuration. The rear exit design positions the cable coaxial with the probe axis. The armored cable extends from the rear exit port with full mechanical protection.
Working Principle The probe generates a high-frequency electromagnetic field at the 25 mm probe tip. Eddy currents induced in the conductive target surface modify the RF field characteristics. The Proximitor Sensor detects these modifications and outputs a DC voltage proportional to the gap distance. The ultra-short case does not compromise sensing element performance.
Installation Requirements Install the probe in a close-fitting bore or housing with appropriate retention mechanism. Ensure adequate rear clearance for the cable exit. Use a 1.0 meter 3300 XL 25 mm Proximitor Sensor. Maintain the 25.4 mm minimum bend radius. Secure the cable to prevent stress on the rear exit connection.
