Bently Nevada 330105-02-12-50-02-00 3300 XL 8mm Probe

Bently Nevada 330105-02-12-50-02-00 3300 XL 8mm Reverse Mount Probe

Product Introduction

The Bently Nevada 330105-02-12-50-02-00 is a precision-engineered reverse mount probe from the 3300 XL 8 mm series. This probe features 3/8-24 UNF threads and a 5.0-meter (16.4 feet) total length. It incorporates a miniature ClickLoc coaxial connector for secure, vibration-resistant connections. The probe tip uses robust Polyphenylene sulfide (PPS) material, while the case utilizes AISI 303 or 304 stainless steel. This 5-meter probe is specifically designed for use with the 5-meter Proximitor sensor only. Manufactured in the U.S.A., it delivers reliable, accurate measurements for critical turbomachinery protection systems.

Technical Specifications & Performance

The 330105-02-12-50-02-00 offers precise electrical characteristics for accurate proximity measurements. Its nominal DC resistance from center conductor to outer conductor measures 8.73 ± 0.50 Ω (highlighted in red) for the 5.0-meter length. This consistent resistance ensures reliable signal transmission between the probe tip and the Proximitor sensor. The probe cable uses 75 Ω triaxial FEP insulation, providing excellent shielding against electrical noise and interference. The system's linear range spans 1.5 mm (60 mils) with a recommended gap setting of 1.0 mm (40 mils), ensuring optimal measurement sensitivity for most turbomachinery applications.

Design Features and Construction

This 3300 XL 8 mm reverse mount probe incorporates several patented design features that enhance its reliability. The TipLoc molding method creates a robust bond between the probe tip and the probe body, preventing separation under mechanical stress. Additionally, the CableLoc design securely attaches the probe cable to the probe tip, providing 330 N (75 lbf) pull strength (highlighted in red) at the probe case to probe lead connection. The probe lead to extension cable connectors provide 270 N (60 lbf) pull strength (highlighted in red) . The probe case features 3/8-24 UNF threads with a maximum thread engagement length of 0.563 inches. The miniature ClickLoc connector locks firmly into place, preventing loosening from vibration commonly found in rotating machinery.

Critical Length Compatibility Note

This Bently Nevada 330105-02-12-50-02-00 requires special attention regarding system compatibility. The 5.0-meter total length option is specifically designed for use with the 5-meter Proximitor sensor only. You must match this probe with the corresponding 5-meter Proximitor sensor to ensure proper system calibration and performance. Using this probe with a different Proximitor sensor length will result in incorrect measurements and potential system malfunction. Therefore, always verify your Proximitor sensor length before selecting this probe option.

Mechanical Properties and Temperature Range

The probe's material construction ensures durability in harsh industrial environments. The PPS probe tip offers excellent chemical resistance and dimensional stability at elevated temperatures. The AISI 303 or 304 stainless steel case provides corrosion resistance and mechanical strength. The standard probe operates across -52°C to +177°C (-62°F to +350°F) (highlighted in red) . For more demanding applications, an extended temperature range probe is available, supporting tip temperatures up to +218°C (+425°F). Note that exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal. The probe also withstands high humidity environments, with less than 3% change in Average Scale Factor after 56 days at 93% humidity per IEC 68-2-3.

Agency Approvals and Installation

This probe carries the "00" agency approval option, indicating that no specific agency approvals are required for this configuration. Despite this, the probe still meets Bently Nevada's rigorous quality standards for industrial monitoring applications. When installing the 330105-02-12-50-02-00 , follow these key steps. First, always power down the system before making any connections. Next, ensure the mounting surface provides proper thread engagement for the 3/8-24 UNF threads. Then, connect the miniature ClickLoc coaxial connector to the extension cable, ensuring it locks securely into place. Finally, set the probe gap to the recommended value of 1.0 mm (40 mils) (highlighted in red) for optimal linearity. The Viton O-ring provides differential pressure sealing between the probe tip and case.

Packaging List

• 1 x Bently Nevada 330105-02-12-50-02-00 3300 XL 8 mm Reverse Mount Probe (5.0m)

• 1 x Locknut with pre-drilled safety wire holes

• 1 x Set of Installation Instructions

Shipping Method: Orders are shipped via FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

Q1: What is the length of the Bently Nevada 330105-02-12-50-02-00?
A1: The "50" total length option signifies 5.0 meters (16.4 feet) for this 3300 XL 8 mm reverse mount probe.

Q2: Which Proximitor sensor must I use with this 5-meter probe?
A2: This 5-meter probe is specifically designed for use with the 5-meter Proximitor sensor only. Do not use it with other Proximitor lengths.

Q3: What connector type does this 3300 XL probe use?
A3: The "02" connector option specifies a miniature ClickLoc coaxial connector for secure, vibration-resistant connections.

Q4: What is the pull strength rating for this Bently Nevada probe?
A4: The probe case to probe lead provides 330 N (75 lbf) pull strength, while the probe lead to extension cable connectors provide 270 N (60 lbf).

Q5: What temperature range does this probe support?
A5: The standard probe operates between -52°C and +177°C (-62°F to +350°F). Extended temperature range versions are available upon request.