Description
Bently Nevada 330851-04-000-023-50-01-05
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330851-04-000-023-50-01-05 |
| Probe Case Type | Smooth 1.06 inch diameter, side exit |
| Unthreaded Length | 0 mm |
| Overall Case Length | 23 mm |
| Total Cable Length | 5.0 meters (16.4 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 | 320 g (11.3 oz) with armor |
Functional Features The smooth side exit case design allows the probe to be mounted in a bore or housing without threads, with the cable exiting from the side of the case rather than the rear. This configuration is ideal for space-constrained installations where rear cable exit would interfere with surrounding components. The armored cable provides mechanical protection. The probe features front and rear seals with FluidLoc cable.
Application Scenarios Steam turbine differential expansion monitoring with bore mounting, compressor installations with limited rear clearance, pump housing monitoring where threaded mounting is not available, generator shaft monitoring in confined spaces, side-exit cable routing applications, machinery with close-fitting probe bores.
Performance Parameters The probe delivers 0.787 V/mm sensitivity with linearity within system specifications over the 12.7 mm range. The side exit configuration maintains full electrical performance. The 5.0 meter cable maintains signal integrity across the full temperature range. 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 1.06 inch diameter cylindrical case with side exit cable port. The 23 mm case length provides a compact mounting profile. The side exit design positions the cable perpendicular to the probe axis. The armored cable extends from the side exit port with mechanical protection.
Working Principle The probe generates a high-frequency electromagnetic field at the 25 mm probe tip. Eddy currents induced in the target surface modify the RF field. The Proximitor Sensor detects these modifications and outputs a DC voltage proportional to the gap distance. The side exit configuration does not affect the sensing element performance.
