Bently Nevada 330105-02-12-05-02-CN 3300 XL Reverse Mount Probe 8mm

330105-02-12-05-02-CN Bently Nevada 3300 XL 8mm Proximity Probe

The 330105-02-12-05-02-CN is a precision-engineered 3300 XL 8mm reverse mount proximity probe, designed for non-contact displacement and vibration measurements in critical rotating machinery. Featuring a high-durability Polyphenylene Sulfide (PPS) tip and an AISI stainless steel case, this 330105-02-12-05-02-CN model excels in high-pressure differential environments. It provides superior scale factor stability even in 93% humidity, ensuring reliable eddy current sensing for industrial automation.

Configuration Breakdown

330105 — 3300 XL 8 mm Reverse Mount Probe
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├── -02 — Unthreaded Length Option
│ └── Standard 0.2 inch unthreaded length
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├── -12 — Overall Case Length Option
│ └── 1.2 inch total case length with 3/8-24 UNF threads
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├── -05 — Total Length Option
│ └── 0.5 Meter (7.45 ± 0.50 Ω DC Resistance)
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├── -02 — Connector Option
│ └── Miniature ClickLoc coaxial connector (Gold-plated)
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└── -CN — Agency Approval Option
└── Country Specific Regulatory Compliance

Technical Specifications

• Brand: Bently Nevada
• Model: 330105-02-12-05-02-CN
• Series: 3300 XL 8mm
• Tip Material: Polyphenylene Sulfide (PPS)
• Case Material: AISI 303 or 304 Stainless Steel (SST)
• Cable Type: 75Ω triaxial, FEP insulated
• Thread Size: 3/8-24 UNF-2A
• Operating Temp: -52°C to +177°C (-62°F to +350°F)
• Tensile Strength: 330 N (75 lbf) Probe case to lead
• Resistance: 7.45 ± 0.50 Ω (Center to outer conductor)
• Protection: Integrated Viton O-ring pressure seal

Global PLC Spare HUB's Insight

The 330105-02-12-05-02-CN is the ideal choice for reverse-mount applications where space is limited but accuracy cannot be compromised. Our engineering review highlights that the 3300 XL 8mm system offers significant improvements in scale factor stability. The PPS tip is chemically inert, making the 330105-02-12-05-02-CN highly reliable for ammonia or hydrogen-rich environments. For users in Asia, the -CN suffix ensures full compliance with local hazardous area classifications.

Equipment & Application Scenarios

• Steam Turbines: High-accuracy radial vibration and axial thrust monitoring.
• Centrifugal Compressors: Detecting shaft orbit and oil film stability.
• Hydrocarbon Pumps: Monitoring seal clearances and shaft runout.
• Power Generators: Critical phase reference (Keyphasor) and speed sensing.

Diagnostic & Performance Capabilities

• ClickLoc Connectivity: Gold-plated coaxial connectors ensure zero-signal loss and vibration-proof coupling.
• Environmental Sealing: The Viton O-ring provides a reliable pressure barrier between the tip and the casing.
• EMI Immunity: Minimal output voltage change (< 0.0045 mil pp/Gauss) even in 300 Gauss magnetic fields.

Shipping & Warranty

• Fast Dispatch: Ships within 24-48 hours.
• Logistics: Global express delivery via FedEx, UPS, and DHL.
• Warranty: Covered by a full 12-month replacement guarantee.
• Origin: Made in U.S.A.

Professional FAQ

Why is the DC resistance measurement of the 330105-02-12-05-02-CN critical?

The 7.45 ± 0.50 Ω resistance confirms the electrical integrity of the 0.5m cable; deviations suggest lead fatigue or connector contamination.

What happens if exposed to temperatures below -34°C?

While the probe functions, the Viton O-ring may lose elasticity, potentially compromising the pressure seal.

Is the ClickLoc connector compatible with older cables?

ClickLoc is optimized for the 3300 XL series to ensure the advertised Average Scale Factor (ASF) stability.

How do I determine the correct thread engagement?

The 330105-02-12-05-02-CN supports a maximum thread engagement of 0.563 inches; exceeding this may damage the internal assembly.

Does this probe require an extension cable?

Yes, as a 0.5m probe, it must be used with a 3300 XL extension cable to connect to the Proximitor sensor.

Selection & Buying Guide

When purchasing the 330105-02-12-05-02-CN, always verify the unthreaded length requirement of your probe bracket to prevent mechanical interference. Since this is a 0.5m probe, it is usually paired with a 4.5m or 8.5m extension cable. Always use the specified mounting hardware to ensure proper sensor alignment with the target shaft.

Download Technical Manual: 3300 XL 8 mm Proximity Transducer System Datasheet

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