Bently Nevada 330102 Proximity Probe Series – 330102-00-50-10-01-05

Technical Dossier

Product Details And Specifications

Bently Nevada 330102 Series Technical Notes

The Bently Nevada 330102 series represents one of the most widely deployed proximity probe families in continuous heavy industrial operations globally. Manufactured by Bently Nevada (a Baker Hughes company), these eddy-current proximity probes are integral to the 3300 XL monitoring system platform and are installed across critical rotating machinery in petrochemical refineries, nuclear power stations, offshore platforms, LNG terminals, and large-scale chemical processing facilities. The 330102 series operates on the standard 5mm probe tip diameter form factor and is designed for direct compatibility with 3300 XL extension cables and proximitor/oscillator driver modules. Their primary function is non-contact measurement of shaft radial vibration, axial position, and differential expansion — parameters that are mandatory for API 670-compliant machinery protection systems.

The Evolution of 330102 Architecture

The 330102 series is the direct successor to the earlier Bently Nevada 7200 and 3300 probe families. The transition from the 3300 to the 3300 XL platform in the late 1990s introduced standardized cable assemblies with armored jacketing options and improved EMI shielding, addressing field failures observed in high-temperature and high-vibration environments such as gas turbine bearing housings. The 330102 probe is engineered to operate with a nominal gap voltage of -10 VDC (at 1.0 mm gap) and a scale factor of 7.87 V/mm (200 mV/mil), consistent across the series regardless of cable length configuration. Cable length variants — 5m, 9m, 14m — are encoded directly in the part number suffix, allowing system integrators to specify exact replacement assemblies without field recalibration. The series reached full market maturity by the mid-2000s and is now in the late-lifecycle/sustained-support phase. Baker Hughes/Bently Nevada continues to supply new units, but many end-users operating legacy 3300 XL racks are increasingly sourcing certified refurbished or new-surplus units through specialist distributors to manage capital expenditure. Compatibility with the 3500 series rack system requires the use of appropriate proximitor drivers (e.g., 3500/42M) and is confirmed for all 330102 probe variants.

330102 Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified, commonly deployed configurations within the 330102 proximity probe series. Each unit is a 5mm eddy-current probe. Cable length and connector type are encoded in the part number suffix.

330102-00-06-10-01-00: 5mm probe, 0.6m integral cable, standard armor, no extension
330102-00-06-10-02-00: 5mm probe, 0.6m cable, armored, reverse-mount configuration
330102-00-06-10-01-05: 5mm probe, 0.6m cable, standard, 5m extension cable system
330102-00-06-10-02-05: 5mm probe, 0.6m cable, armored, 5m extension cable system
330102-00-06-10-01-09: 5mm probe, 0.6m cable, standard, 9m extension cable system
330102-00-06-10-02-09: 5mm probe, 0.6m cable, armored, 9m extension cable system
330102-00-06-10-01-14: 5mm probe, 0.6m cable, standard, 14m extension cable system
330102-00-50-10-01-00: 5mm probe, 5.0m integral cable, standard armor, no extension
330102-00-50-10-02-00: 5mm probe, 5.0m cable, armored, reverse-mount configuration
330102-00-50-10-01-05: 5mm probe, 5.0m cable, standard, 5m extension — this listing's primary SKU
330102-00-50-10-02-05: 5mm probe, 5.0m cable, armored, 5m extension cable system
330102-00-50-10-01-09: 5mm probe, 5.0m cable, standard, 9m extension cable system
330102-00-50-10-02-09: 5mm probe, 5.0m cable, armored, 9m extension cable system
330102-00-50-10-01-14: 5mm probe, 5.0m cable, standard, 14m extension cable system
330102-00-50-10-02-14: 5mm probe, 5.0m cable, armored, 14m extension cable system
330102-00-90-10-01-00: 5mm probe, 9.0m integral cable, standard armor, no extension
330102-00-90-10-01-05: 5mm probe, 9.0m cable, standard, 5m extension cable system
330102-00-90-10-01-09: 5mm probe, 9.0m cable, standard, 9m extension cable system