Bently Nevada 3300 XL Modules - 330710-000-060-90-02-00

Technical Dossier

Product Details And Specifications

Bently Nevada 3300 XL Series Technical Notes

The Evolution of 3300 XL Architecture

The Bently Nevada 3300 series originated in the 1970s as part of the company's early eddy-current transducer portfolio. The original 3300 system established the 5-meter and 9-meter cable length conventions and the standard -24 VDC proximitor supply voltage that remain industry reference points today. Through the 1980s and 1990s, Bently Nevada introduced the 3300 XL designation to reflect enhanced electromagnetic compatibility (EMC), tighter output linearity specifications, and improved temperature stability across the probe-cable-driver chain.

The 3300 XL system operates on the standard Bently Nevada eddy-current principle: the proximitor driver oscillates at a fixed radio frequency (typically 1.0 MHz for standard probes), and the probe tip generates an electromagnetic field. As a conductive target approaches the probe tip, eddy currents are induced, loading the oscillator circuit and producing a proportional DC voltage output (nominally -24 VDC at gap, scaling linearly with distance). The system is calibrated for AISI 4140 steel targets; correction factors apply for other alloys.

Key architectural milestones include the introduction of the 8 mm probe diameter as the dominant standard for turbomachinery applications, the development of high-temperature probe variants rated to 177°C (350°F) for hot-section installations, and the introduction of reverse-mount and integral cable configurations for space-constrained installations. The 3300 XL system entered its mature/sustaining phase following GE's acquisition of Bently Nevada in 2002. While GE has introduced successor platforms (including the 3500 series rack-based monitors), the 3300 XL transducer hardware remains in active production and is supported as a long-term spare parts line due to the scale of the global installed base.

3300 XL Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked components within the Bently Nevada 3300 XL Proximity Transducer System. Each entry reflects a distinct configuration of probe diameter, cable length, temperature rating, and connector type.

Proximity Probes — 8 mm Standard

• 330710-000-060-90-02-00: 8 mm probe, 60 cm integral cable, metric thread, standard temp, side-exit connector
• 330710-000-060-90-01-00: 8 mm probe, 60 cm integral cable, metric thread, standard temp, top-exit connector
• 330710-000-090-90-02-00: 8 mm probe, 90 cm integral cable, metric thread, standard temp, side-exit connector
• 330710-000-030-90-02-00: 8 mm probe, 30 cm integral cable, metric thread, standard temp, side-exit connector
• 330710-000-060-90-02-CN: 8 mm probe, 60 cm integral cable, metric thread, standard temp, Chinese connector variant

Proximity Probes — 5 mm Standard

• 330750-000-060-90-02-00: 5 mm probe, 60 cm integral cable, metric thread, standard temp, side-exit connector
• 330750-000-030-90-02-00: 5 mm probe, 30 cm integral cable, metric thread, standard temp, side-exit connector

Proximity Probes — High Temperature

• 330730-000-060-90-02-00: 8 mm probe, 60 cm integral cable, metric thread, high-temp rated to 177°C
• 330730-000-090-90-02-00: 8 mm probe, 90 cm integral cable, metric thread, high-temp rated to 177°C

Extension Cables

• 330130-045-00-00: 3300 XL extension cable, 5 m length, standard temperature
• 330130-080-00-00: 3300 XL extension cable, 8 m length, standard temperature
• 330130-045-01-00: 3300 XL extension cable, 5 m length, armored jacket
• 330180-X0-05: 3300 XL high-temperature extension cable, 5 m

Proximitor / Driver Modules

• 330180-51-00: 3300 XL 8 mm proximitor, -24 VDC supply, standard output, DIN rail mount
• 330180-51-05: 3300 XL 8 mm proximitor, -24 VDC supply, ATEX/IECEx certified, DIN rail mount
• 330180-90-00: 3300 XL 5 mm proximitor, -24 VDC supply, standard output

Quality Control for the 3300 XL Range

Each 3300 XL component processed by DriveKNMS undergoes a structured verification protocol before dispatch. Proximity probes are tested for tip impedance, resonant frequency, and output linearity across the full measurement gap range (0–2.5 mm for 8 mm probes) using a calibrated Bently Nevada TK-3 or equivalent calibration fixture. Extension cables are tested for continuity, shield integrity, and connector pin resistance. Proximitor/driver modules are powered at -24 VDC and verified for output voltage at defined gap distances, output noise floor (< 100 mV p-p), and frequency response to 10 kHz.