Product Overview

The Bently Nevada 330104-00-05-50-02-CN is a high-performance 8mm proximity probe engineered for the 3300 XL Transducer System. This sensor serves as a fundamental component in Turbine Supervisory Instrumentation (TSI), providing critical, non-contact measurements of radial vibration and axial position on high-speed rotating shafts. By utilizing advanced eddy current technology, the probe accurately tracks shaft movement in fluid-film bearing machinery, such as large-scale centrifugal compressors, steam turbines, and industrial motors.

Designed to withstand the turbulent internal environments of heavy machinery, this probe delivers a precise proportional voltage output that represents the gap between the probe tip and the target surface. Its robust construction ensures that even the most minute mechanical anomalies are detected before they escalate into costly equipment failures, maintaining the operational integrity of your most valuable industrial assets.

Technical Configuration

The 330104-00-05-50-02-CN suffix codes define a precise mechanical profile tailored for specific metric mounting requirements:

Unthreaded Length Option (-00)

This indicates a 0 mm unthreaded length, meaning the M10 x 1 case is fully threaded to provide maximum flexibility during installation and depth adjustment.

Overall Case Length Option (-05)

Specifies a 50 mm total case length, offering a compact footprint suitable for standard bearing housing depths.

Total Length Option (-50)

This denotes a 5.0-meter (approx. 16.4 feet) total length. This system is calibrated specifically for a 5-meter loop, ensuring high signal accuracy when paired with a corresponding 5m Proximitor.

Connector and Cable Option (-02)

Equipped with Miniature ClickLoc™ coaxial connectors and stainless steel armor. The armored cable provides superior mechanical protection against abrasion and crushing in harsh industrial environments.

Agency Approval Option (-CN)

The CN suffix designates specific regional certification compliance, ensuring the unit meets the localized regulatory standards for industrial electronics and hazardous area safety.

Technical Specifications

Engineering Installation & Maintenance Guide

Voltage-Based Gap Calibration

Engineers must calibrate the mechanical gap using DC voltage. For the 3300 XL system, center the probe within its linear range by adjusting the gap until the output voltage reads -10.0 VDC. This ensures the sensor can capture both positive and negative displacement peaks without signal clipping.

Armor and Cable Routing

While the stainless steel armor provides excellent physical protection, ensure the cable maintains a minimum bend radius of 25.4 mm (1 inch). Avoid sharp kinks which can damage the internal coaxial structure and introduce noise into the vibration signal.

Connector Security

The ClickLoc™ connector system requires a firm "click" to ensure a low-resistance contact. I recommend using silicone tape or specialized connector protectors to seal the junction against oil mist and moisture, which are the primary causes of signal drift in industrial settings.

Engineering Advantages

The 330104 series offers unparalleled reliability in extreme environments. Its Polyphenylene Sulfide (PPS) tip is chemically resistant to synthetic lubricants and corrosive process gases, while the armored cable prevents damage during routine maintenance or machine re-assembly. This probe provides full interchangeability within the 3300 XL ecosystem, allowing for seamless integration with 3500 series monitoring racks. This backward and forward compatibility makes it an ideal choice for both modernizing legacy systems and installing new machinery protection loops.

Delivery and Logistics

We maintain ready-to-ship inventory of the 330104-00-05-50-02-CN to support your urgent maintenance schedules.

Delivery Time: 3-5 business days after payment finish.

Shipping Method: Express delivery via DHL, FEDEX, or UPS.

Packaging: Every unit is shipped in Anti-Static (ESD) protective packaging and secured in impact-resistant cartons to maintain factory calibration integrity.

Technical FAQs

Q1: How do I interpret the -CN suffix?

A1: The -CN suffix indicates that the product is certified for specific regional standards (such as NEPSI or local safety approvals). Internally, the technical performance—including sensitivity and range—remains identical to the standard 330104 series.

Q2: Can I use this 5.0m probe with a 9.0m Proximitor?

A2: No. The proximity system is tuned for a specific electrical length. A 5.0m probe must be used with a system configured for 5.0 meters (either a 5.0m probe alone or a 1.0m probe with a 4.0m extension cable). Mixing lengths will result in significant linearity errors.

Q3: What target material is this probe calibrated for?

A3: This probe is factory-calibrated for AISI 4140 steel. If your shaft is made of a different alloy (such as stainless steel or aluminum), the scale factor will change, and the Proximitor may require custom calibration.

Q4: Is the armor grounding necessary?

A4: The armor should be grounded only at the monitor end (TSI rack) to avoid ground loops. The armor serves as an effective shield against electromagnetic interference (EMI), which is crucial for clean vibration signals near large motors.