Bently Nevada 3300 Series Modules: 330130-085-03-05 Standard Extension Cable

Technical Dossier

Product Details And Specifications

Bently Nevada 3300 Series Technical Notes

The Bently Nevada 3300 Series Proximity Transducer System is one of the most widely deployed machinery protection platforms in global heavy industry. Installed across petrochemical refineries, nuclear power stations, offshore platforms, LNG terminals, and rotating equipment facilities, the 3300 Series provides continuous, real-time vibration, position, and speed monitoring for critical turbomachinery including steam turbines, gas compressors, centrifugal pumps, and large electric motors. Its modular architecture — comprising probes, extension cables, drivers/proximitors, and rack-mounted monitors — has made it the de facto standard for API 670-compliant machinery protection systems since the 1980s. The system's long service life means that a significant portion of installed base units are operating on original hardware, creating sustained global demand for genuine replacement components, calibrated spare modules, and lifecycle extension support.

The Evolution of 3300 Series Architecture

The 3300 Series was introduced by Bently Nevada Corporation in the early 1980s as a modular, rack-based successor to earlier discrete transducer systems. The original architecture centered on the 3300/16 and 3300/20 monitor cards, which accepted signals from eddy-current proximity probes via matched extension cables and proximitor drivers. These three-component transducer chains — probe, extension cable, and proximitor — were engineered as calibrated systems; substituting unmatched components degrades measurement accuracy and voids API 670 compliance.

Through the 1990s, Bently Nevada expanded the 3300 Series to include dedicated thrust position monitors, differential expansion modules, eccentricity monitors, and speed/phase reference cards. The introduction of the 3500 Series in the mid-1990s provided a digital, fieldbus-capable successor, but the 3300 Series remained in active production and support for decades due to the enormous installed base. Baker Hughes (which acquired Bently Nevada in 2002) officially transitioned the 3300 Series to a legacy/mature lifecycle status, with the 3500 Series and later the System 1 platform designated as the forward migration path. Despite this, the 3300 Series remains operational in thousands of facilities worldwide, and sourcing calibrated replacement cables, proximitors, and monitor cards continues to be a critical maintenance requirement.

Compatibility note: 3300 Series extension cables are length- and impedance-matched to specific probe models. The 330130 cable series is designed for use with 330100 and 330101 8mm probes. Mixing cable lengths or probe types without recalibration will produce measurement errors. Always verify the complete transducer chain (probe + cable + proximitor) when sourcing replacement parts.

3300 Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked components within the Bently Nevada 3300 Series ecosystem, organized by functional category.

Extension Cables — 330130 Series (8mm Probe, Standard)

• 330130-085-03-05: 8mm standard extension cable, 5-meter length, for 330100/330101 probe systems — the subject of this listing.
• 330130-085-03-10: 8mm standard extension cable, 10-meter length, matched for 330100/330101 probes.
• 330130-085-03-CN: 8mm standard extension cable, custom length variant, field-order configuration.
• 330130-080-03-05: 8mm standard extension cable, 5-meter, alternate connector configuration.

Extension Cables — 330180 Series (14mm Probe, Standard)

• 330180-085-03-05: 14mm standard extension cable, 5-meter length, for 330175 probe systems.
• 330180-085-03-10: 14mm standard extension cable, 10-meter length.

Proximity Probes — 330100 / 330101 Series (8mm)

• 330100-090-01-CN: 8mm proximity probe, standard tip, reverse-mount, custom cable length.
• 330101-00-CN: 8mm proximity probe, extended range, configurable length.
• 330104-00-CN: 8mm proximity probe, high-temperature variant, for applications up to 177°C.

Proximitor Drivers — 3300 XL Series

• 330180-X1-CN: 3300 XL 8mm proximitor, -24 VDC powered, standard output range.
• 330780-90-00: 3300 XL 11mm proximitor, extended range driver.
• 330730-040-01-00: 3300 XL 25mm proximitor, large-gap measurement applications.

Monitor Cards — 3300 Rack System

• 3300/16-13-01-01-00-00-00: Dual-channel radial vibration monitor, 4–20 mA output, relay trip.
• 3300/20-13-01-01-00-00-00: Dual-channel thrust position monitor, configurable trip setpoints.
• 3300/25-13-01-01-00-00-00: Dual-channel differential expansion monitor.
• 3300/46M-01-00: Keyphasor module, speed and phase reference for 3300 rack systems.
• 3300/55-01-00: Power supply module, 115/230 VAC input, rack-mounted, redundant-capable.

Sourcing Hard-to-Find & Obsolete 3300 Series Parts

DriveKNMS also supports bill-of-materials (BOM) sourcing for complete transducer chain replacements — probe, cable, and proximitor — ensuring matched-system integrity without requiring customers to source each component separately.

Quality Control for the 3300 Series Range

The 3300 Series transducer chain is a precision measurement system. Extension cables such as the 330130-085-03-05 are not passive components — their electrical characteristics (capacitance, resistance, and impedance) are matched to specific probe and proximitor combinations. DriveKNMS applies the following quality control procedures to all 3300 Series inventory:

• Cable continuity and impedance verification: Each extension cable is tested for end-to-end continuity and measured against published Bently Nevada impedance specifications for the applicable probe series.
• Connector integrity inspection: MIL-spec connectors are inspected for pin straightness, corrosion, and thread integrity. Cables with damaged connectors are rejected.
• Proximitor output verification: Proximitor drivers are bench-tested using calibrated gap simulation to verify output voltage linearity across the full measurement range.
• Monitor card functional test: Rack-mounted monitor cards (3300/16, 3300/20, 3300/25) are powered and tested for channel response, relay operation, and 4–20 mA output accuracy.
• Traceability documentation: Each unit ships with a test record identifying the technician, test date, equipment used, and pass/fail criteria. Calibration certificates are available on request for API 670-critical applications.