Bently Nevada 330400-02-CN – Proximity Transducer Component for 3300/3500 Machinery Protection

The Bently Nevada 330400-02-CN is part of the proven 3300 XL proximity transducer system used for shaft vibration and position measurements on critical rotating assets. From my experience, this part number is typically an extension cable option within the 3300 XL family, paired with a proximity probe and a Proximitor Sensor to deliver API 670-compliant measurements into 3300/3500 monitoring racks or compatible PLCs/DCS. You might notice the “-02” option often corresponds to a 2 m length, which helps when you’re matching installed lengths during like-for-like replacements. If you’re aligning with an existing machine BOM, we can double-check the exact option code details before shipping.

Order Placement Process and Guarantees

• Warranty: 365 days coverage
• Delivery: 1 week when in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL
• Pre-shipment: Visual check and compatibility confirmation against your BOM (model, length, connector)

Key Features

• 3300 XL ecosystem compatibility – Works with matching Bently Nevada probes and Proximitor Sensors for stable eddy-current measurements.
• Reliable analog signal path – Coaxial design helps preserve DC gap and dynamic vibration signals to the monitor input.
• Rugged, plant-ready build – Typically rated for harsh environments and continuous duty around compressors, turbines, and pumps.
• Option-based configuration – Length and connector options make like-for-like replacements straightforward and fast.
• API 670-friendly performance – Commonly used in API 670 compliant protection systems for critical rotating machinery.
• Service-friendly – Quick to route and secure; field techs appreciate the consistent connectors and strain relief.

Technical Specifications

Application Fields

This component is used across high-criticality machinery where reliable shaft measurements are non-negotiable:

• Steam and gas turbines – radial vibration, shaft position, and differential expansion measurements
• Compressors and expanders – bearing vibration and casing vibration to support trip logic
• Pumps and fans – condition monitoring and protection in continuous process lines
• Gearboxes and generators – monitoring mesh issues and rotor rubs via dynamic signals

Advantages & Value

• High reliability in harsh environments – Typically specified in API 670 systems for decades, so spares integrate smoothly.
• Lower downtime risk – Like-for-like replacement keeps your transducer loop intact with minimal recalibration effort.
• Compatibility peace of mind – Works with standard 3300 XL probes and Proximitor Sensors used on 3300/3500 racks.
• Procurement-friendly – Options on length and connectors reduce need for harness rework or field splicing.
• Technical support – We can help verify option codes and routing guidance before shipment.

A maintenance lead at a refinery told us they swapped in a “-02” cable during a hot standby window; alignment checks passed first time and the 3500 channels settled within expected bias—exactly the kind of quick win they needed ahead of a bigger outage.

Installation & Maintenance

• Cabinet and routing – Use clean cable routing with proper strain relief; avoid tight bends and high-EMI paths near VFDs.
• Grounding/shielding – Follow Bently Nevada guidance for shield termination (typically at the Proximitor end only).
• Connections – Keep connectors clean and fully seated; torque and lock as recommended to prevent intermittent signals.
• Environment – Maintain dry, vibration-protected routing; avoid heat sources that could push beyond rated temperatures.
• Routine care – Periodic visual inspection, connector cleaning, and continuity checks during scheduled turnarounds.
• System checks – Verify gap voltage and bias on the monitor after replacement; document in your API 670 calibration records.

Quality & Certifications

• Certifications: Typically CE; RoHS compliance is common for current production variants
• Manufacturing standards: Built for continuous industrial service; compatible with API 670 system practices
• Warranty: 365 days

Need to confirm if 330400-02-CN matches your installed probe and Proximitor Sensor? Share the rack channel, probe model, and any tag numbers. We’ll cross-check the option code and length so it drops straight into your loop without surprises.