Bently Nevada 330101 Series Proximity Probes

Technical Dossier

Product Details And Specifications

Bently Nevada 330101 Series Technical Notes

The Bently Nevada 330101 Series represents the industry-standard eddy-current proximity probe line deployed across global heavy industry installations, including petrochemical refineries, nuclear power stations, offshore platforms, and rotating machinery facilities. Manufactured by Baker Hughes (formerly GE Bently Nevada), the 330101 probe is the primary sensing element in the 3300 XL 8mm Proximity Transducer System — a triaxial vibration and position monitoring platform that has accumulated decades of field-proven reliability in turbomachinery protection applications. These probes are designed to operate with the 330180 extension cable and 330130/330190 proximitor sensor to form a complete transducer loop, and are fully compatible with Bently Nevada 3500 Series rack-based machinery protection systems.

330101 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly deployed configurations within the 330101 proximity probe family, organized by cable length and mounting configuration:

330101-00-06-10-02-00: 8mm probe, 0.5m cable, standard armor, straight mount, 200 mil range
330101-00-06-10-02-05: 8mm probe, 0.5m cable, armored, straight, metric thread M10x1
330101-00-06-10-02-CN: 8mm probe, 0.5m cable, CE-marked, straight body, standard gap
330101-00-08-10-02-00: 8mm probe, 0.5m cable, 8mm tip, 200 mil range, unarmored
330101-32-57-05-01-05: 8mm probe, 5m integral cable, armored, reverse-mount, metric thread
330101-32-57-10-01-05: 8mm probe, 5m cable, armored, straight-mount, 200 mil range, metric
330101-32-57-10-02-00: 8mm probe, 5m cable, standard armor, straight body, 200 mil gap range
330101-32-57-10-02-05: 8mm probe, 5m cable, armored, straight, M10x1 thread, metric
330101-32-57-10-02-CN: 8mm probe, 5m cable, CE-marked, straight body, standard configuration
330101-32-57-15-01-05: 8mm probe, 5m cable, armored, reverse-mount, 15mm range, metric
330101-32-57-15-02-00: 8mm probe, 5m cable, armored, straight, 15mm measurement range
330101-32-57-20-02-00: 8mm probe, 5m cable, armored, straight, 20mm extended range
330101-32-57-25-02-00: 8mm probe, 5m cable, armored, straight, 25mm extended range
330101-32-57-30-02-00: 8mm probe, 5m cable, armored, straight, 30mm extended range
330101-32-57-50-02-00: 8mm probe, 5m cable, armored, straight, 50mm extended range
330101-32-57-10-02-02: 8mm probe, 5m cable, armored, straight, 200 mil range, UNF thread
330101-32-57-10-02-03: 8mm probe, 5m cable, armored, straight, 200 mil range, UNC thread
330101-32-57-10-02-04: 8mm probe, 5m cable, armored, straight, 200 mil range, M8x1 thread

Sourcing Hard-to-Find & Obsolete 330101 Series Parts

Q: Can you support multi-unit or repeat RFQ requests?
A: Yes. Send the model list, target quantity and destination so DRIVEKNMS can review sourcing options and quote the requirement as a project RFQ.

Quality Control for the 330101 Range

Each 330101 proximity probe processed through DriveKNMS undergoes a structured verification protocol specific to eddy-current transducer systems. Testing includes: static gap sensitivity verification against the nominal 7.87 V/mm (200 mV/mil) output curve using a calibrated aluminum target; insulation resistance measurement on the coaxial cable assembly; tip impedance check to confirm coil integrity; and full-loop functional test when paired with a 330130 or 330190 proximitor sensor. Probes exhibiting sensitivity deviation exceeding ±2% from nominal, or cable insulation resistance below 100 MΩ, are rejected and not offered for resale. All test results are logged and available to customers upon request.