Bently Nevada 330104 Proximity Probe Modules - 330104-01-11-10-01-00

Technical Dossier

Product Details And Specifications

Bently Nevada 330104 Series Technical Notes

The Bently Nevada 330104 series is a family of 3300 XL 8mm proximity probes manufactured by Baker Hughes (formerly GE Bently Nevada). These probes are deployed globally in continuous machinery protection systems across heavy industrial sectors including petrochemical refineries, nuclear power stations, offshore platforms, LNG terminals, and rotating equipment monitoring installations. The 330104 series operates as the primary sensing element in the 3300 XL monitoring system, measuring radial shaft vibration, axial position, and differential expansion on critical rotating machinery such as steam turbines, gas compressors, centrifugal pumps, and gearboxes. Their 8mm tip diameter and standardized metric thread (M10 x 1) make them the dominant probe specification in ISO-compliant machinery protection installations worldwide.

The Evolution of 330104 Architecture

The 330104 series traces its lineage to the original Bently Nevada 7200 and 3300 probe systems introduced in the 1970s and 1980s. The 3300 XL platform, of which the 330104 is a core component, was introduced as a backward-compatible upgrade to the 3300 system, maintaining the same -24 VDC bias voltage and eddy-current operating principle while improving temperature stability and EMI rejection. The 330104 probe is designed to operate exclusively with the 330180 extension cable and the 330130 or 330190 proximitor/oscillator-demodulator, forming a three-component measurement chain. Early variants used a fixed-length armored cable; later configurations introduced field-configurable cable lengths (1m, 5m, 9m) to accommodate diverse installation geometries. The series reached maturity in the 2000s and is now in a sustained-availability phase: no new architectural revisions are planned, but Baker Hughes continues to supply replacement units to support the large installed base. Plants operating legacy 3300 (non-XL) systems must verify proximitor compatibility before substituting 330104 probes, as the scale factor (200 mV/mil or 7.87 V/mm) must match the configured monitor channel.

330104 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked configurations within the 330104 series. Each part number encodes probe length, cable length, and connector type per Bently Nevada's ordering matrix.

330104-00-06-10-02-00: 3300 XL 8mm probe, 6-inch rigid, 2m cable, standard connector
330104-00-06-10-02-CN: 3300 XL 8mm probe, 6-inch rigid, 2m cable, Chinese market connector
330104-00-06-10-05-00: 3300 XL 8mm probe, 6-inch rigid, 5m cable, standard connector
330104-00-06-10-09-00: 3300 XL 8mm probe, 6-inch rigid, 9m cable, standard connector
330104-00-10-10-02-00: 3300 XL 8mm probe, 10-inch rigid, 2m cable, standard connector
330104-00-10-10-05-00: 3300 XL 8mm probe, 10-inch rigid, 5m cable, standard connector
330104-00-10-10-09-00: 3300 XL 8mm probe, 10-inch rigid, 9m cable, standard connector
330104-01-11-10-01-00: 3300 XL 8mm probe, metric thread, 1m integral cable, standard connector
330104-01-11-10-02-00: 3300 XL 8mm probe, metric thread, 2m integral cable, standard connector
330104-01-11-10-05-00: 3300 XL 8mm probe, metric thread, 5m integral cable, standard connector
330104-01-11-10-09-00: 3300 XL 8mm probe, metric thread, 9m integral cable, standard connector
330104-02-12-10-02-00: 3300 XL 8mm probe, extended body, 2m cable, armored jacket
330104-02-12-10-05-00: 3300 XL 8mm probe, extended body, 5m cable, armored jacket
330104-02-12-10-09-00: 3300 XL 8mm probe, extended body, 9m cable, armored jacket
330104-03-12-10-02-00: 3300 XL 8mm probe, high-temperature variant, 2m cable, Teflon jacket
330104-03-12-10-05-00: 3300 XL 8mm probe, high-temperature variant, 5m cable, Teflon jacket
330104-03-12-10-09-00: 3300 XL 8mm probe, high-temperature variant, 9m cable, Teflon jacket