Bently Nevada 330101-00-20-20-02-05 3300 XL 8 mm Proximity Probe

Description

The Bently Nevada 330101-00-20-20-02-05 is a high-performance, non-contact 8 mm proximity probe designed as a core component of the 3300 XL 8 mm Proximity Transducer System. This specific variant features a fully threaded 3/8-24 UNF steel body with 0.0 inches of unthreaded length, enabling maximum depth adjustment and flexibility when threading directly into bearing housings, gearboxes, or custom mounting brackets. Unarmored by design, this model utilizes standard coaxial cabling and is optimized for installation environments where the cable is routed through protective conduit or machinery piping. With a total probe length of 2.0 meters (6.6 feet), this unit is engineered to connect to a matching 7.0-meter extension cable to form a standard 9.0-meter measurement chain, or a 3.0-meter extension cable for a 5.0-meter system, providing precise dynamic displacement data to a 3300 XL Proximitor sensor.

Unlike configuration variants that incorporate integrated plastic connector protectors (Option 01) or fluid-resistant cables (Option 11/12), this configuration employs Option 02, utilizing a standard coaxial cable terminated with a low-profile, high-integrity miniature ClickLoc coaxial connector. Additionally, Option 05 equips the probe with comprehensive international safety certifications including CSA, ATEX, and IECEx approvals for hazardous environments. This ensures safe, highly reliable operation in intrinsically safe and non-incendive machinery monitoring systems across industries such as power generation, petrochemicals, oil and gas, and water treatment.

Features

• Fully Threaded Design: Option 00 specifies 0.0 inches of unthreaded length, allowing the full 2.0-inch steel casing to be threaded for flexible depth installation.
• Moderate Reach Casing: Option 20 provides a 2.0-inch overall case length, ideal for tight envelope machine casings and standard machinery mounts.
• Flexible Unarmored Routing: Lighter and more flexible coaxial cable handling without metal armor, ideal for conduit-enclosed cable pathways.
• 2.0-Meter Length: Total probe length of 2.0 meters (6.6 feet) to suit standard industrial instrumentation and mounting architectures.
• ClickLoc Coaxial Connector: Option 02 provides a standard miniature ClickLoc coaxial connector without an integrated connector protector, ensuring a secure, standard coax interface.
• Hazardous Location Certification: Option 05 compliance grants ATEX, IECEx, and CSA ratings for intrinsically safe installations.

Applications

The 330101-00-20-20-02-05 proximity probe is utilized for critical machinery vibration monitoring and protection. Common applications include:

• Steam turbine and gas turbine shaft vibration and axial position monitoring
• Centrifugal compressor and expander rotor displacement analysis
• High-speed industrial pump shaft motion and keyphasor phase reference detection
• Permanent turbomachinery protection systems in high-temperature or hazardous processing plants

Ordering Information

Technical Specifications

Connections and Interfaces

Installation Guidelines

To achieve accurate calibration and long-term mechanical reliability, observe the following guidelines during installation:

• Setting Probe Gap: Adjust the mechanical probe-to-target distance to target the electrical center point, typically calibrated to -10.0 Vdc using a digital voltmeter.
• Torque Limits: Since this model features a fully threaded body (0.0 inches unthreaded), ensure the locknut is torqued to specified tolerances to secure the probe against dynamic shaft vibration.
• Cable Protection: Route the unarmored standard coaxial cable inside protective conduit to guard against sharp edges, mechanical pinching, and environmental contaminants.
• Electrical Isolation: Keep the coaxial cable shield isolated from the machine ground except at the Proximitor sensor chassis ground point to avoid electrical ground loops.

Compliance and Certifications

• CSA: Certified for Division 1 & 2, and Zone 0, 1, & 2 hazardous areas (Intrinsically Safe and Non-Incendive).
• ATEX/IECEx: Certified Ex ia IIC T5...T1 Ga for gas atmospheres, and Ex ia IIIC T90 Celsius...T280 Celsius Dc for dust atmospheres.
• CE: Fully compliant with electromagnetic compatibility (EMC) and industrial equipment directives.
• RoHS: Complies with hazardous substance restrictions.