Bently Nevada 3300 NSV Proximity Probes – 330909-00-20-10-01-05

Technical Dossier

Product Details And Specifications

Bently Nevada 3300 NSV Series Technical Notes

The Bently Nevada 3300 NSV (Non-contacting Vibration) Proximity Probe System is one of the most widely deployed eddy-current sensing platforms in global heavy industry. Installed across petrochemical refineries, nuclear power stations, LNG terminals, offshore platforms, and rotating machinery facilities, the 3300 NSV system provides continuous, non-contact measurement of shaft radial vibration, axial position, and differential expansion. Its architecture conforms to API 670 (Machinery Protection Systems) and is accepted by major engineering contractors including Bechtel, Fluor, and Technip as the reference standard for turbomachinery protection. The system operates on a triaxial probe-extension cable-proximitor driver topology, enabling field replacement of individual components without disturbing the machine casing or alignment.

The Evolution of 3300 NSV Architecture

The 3300 NSV series succeeded the earlier Bently Nevada 3300 XL and 7200 series platforms, which used analog signal conditioning with discrete relay outputs. The 3300 NSV introduced digital signal processing at the proximitor level, enabling on-board gap voltage linearization and extended temperature compensation from -40°C to +121°C. Early 3300 NSV deployments (circa 1998–2005) used the 330130 and 330180 proximitor drivers paired with 3300 XL 8mm probes. From 2005 onward, the 330905 and 330909 probe families were introduced with integrated SMART diagnostics, allowing the System 1 condition monitoring software to detect cable faults, probe wear, and target material anomalies in real time. The 3300 NSV is now in the mature/sustained phase of its lifecycle. Bently Nevada (a Baker Hughes company) continues to manufacture replacement parts, but the platform is no longer receiving new feature development. For new installations, Bently Nevada recommends the 3500 Series rack-based system; however, the 3300 NSV remains the dominant installed base in brownfield facilities where rack replacement is cost-prohibitive. DriveKNMS maintains long-term maintenance inventory specifically for this transition period.

3300 NSV Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly deployed components within the Bently Nevada 3300 NSV ecosystem, classified by functional category:

Proximity Probes (Sensing Elements)

330909-00-20-10-01-05: 8mm NSV probe, 5m cable, standard tip, 200 mil range
330909-00-20-10-01-02: 8mm NSV probe, 2m cable, standard tip, 200 mil range
330909-00-20-10-01-08: 8mm NSV probe, 8m cable, standard tip, 200 mil range
330905-00-20-10-01-05: 8mm NSV probe, 5m cable, high-temperature tip, 200 mil range
330905-00-20-10-01-02: 8mm NSV probe, 2m cable, high-temperature tip, 200 mil range
330180-91-00: 5mm NSV proximity probe, standard range, general-purpose shaft sensing
330130-080-00-00: 8mm standard proximity probe, legacy 3300 XL compatible

Extension Cables (Signal Transmission)

330130-040-00-00: 4m armored extension cable, 3300 NSV compatible
330130-080-00-00: 8m armored extension cable, 3300 NSV compatible
330130-120-00-00: 12m armored extension cable, 3300 NSV compatible
330130-200-00-00: 20m armored extension cable, high-flex routing variant

Proximitor Drivers / Signal Conditioners

330180-X1-05: 3300 NSV proximitor, 5m system, -24 VDC, ATEX/IECEx rated
330180-X1-08: 3300 NSV proximitor, 8m system, -24 VDC, DIN rail mount
330180-51-00: 3300 NSV proximitor, standard output, 4–20 mA analog interface
330180-91-00: 3300 NSV proximitor, extended temperature, -40°C to +121°C

Mounting & Accessories

02-262783-01: Probe mounting bracket, stainless steel, 8mm probe series
330105-02-12-10-02-00: Proximity transducer system, complete assembly, 12mm probe