Description

The Bently Nevada 330101-00-23-15-02-05 is a high-performance 8 mm proximity probe belonging to the industry-standard 3300 XL series. This specific configuration features a 3/8-24 UNF thread, a fully threaded overall case length of 2.3 inches (0.0 inches unthreaded), and a total cable length of 1.5 meters (4.9 feet). It is equipped with a miniature coaxial ClickLoc connector (without connector protector) and is fully approved for hazardous area installations under CSA, ATEX, and IECEx certifications. Engineered for precise shaft vibration, position, and displacement measurements in high-speed rotating machinery, this non-contacting eddy current probe pairs with a 3300 XL Proximitor sensor and a corresponding extension cable to form an exceptionally stable machine monitoring chain.

Utilizing robust eddy current measurement principles, this configuration excels at monitoring shaft behavior relative to bearings in environments with tight physical access where unarmored routing is preferred. The standard unarmored FEP cable allows flexible routing through machinery conduits, and the specialized PPS tip material seals differential pressure between the case and the process. Designed for permanent mount applications in steam and gas turbines, compressors, and pump casings, this configuration represents a highly reliable, hazardous-area-compliant option for critical industrial assets.

Features

• Fully Threaded Case: Designed with 2.3 inches of continuous thread (0.0 inches unthreaded) and standard 3/8-24 UNF-2A threading for precise depth adjustment and rigid mounting.
• Unarmored FEP Triaxial Cable: Provides a flexible 1.5-meter (4.9 feet) standard cable profile, allowing simple routing through protected internal conduits and narrow pathways.
• Standard ClickLoc Coaxial Connector: Features a low-signal attenuation miniature coaxial connector without the extra outer bulk of a connector protector, ideal for space-constrained installations.
• Intrinsic Safety Certification: Comes equipped with option code 05, certifying the probe for intrinsically safe installations in ATEX, IECEx, and CSA hazardous environments.
• Rugged Material Design: Built with a polyphenylene sulfide (PPS) tip and an AISI 303/304 stainless steel probe body for high resistance to oil, moisture, and chemical corrosion.
• High Temperature Performance: Capable of withstanding continuous operational environments ranging from -52 degC to +177 degC.

Applications

Typically deployed in critical heavy-industry machinery protection systems including:

• Steam and gas turbine shaft vibration and radial position monitoring
• High-pressure compressor rotor axial displacement tracking
• Boiler feed pump dynamic shaft motion and oil film thickness monitoring
• Generator and turboexpander bearing housing measurements
• Emergency shutdown systems (ESD) and machinery protection loops

Ordering Information

The Bently Nevada 330101-00-23-15-02-05 is defined by the following ordering code structure:

Technical Specifications

Installation Guidelines

• Thread Engagement: Maximum length of thread engagement for 3/8-24 UNF threads is 0.563 inches (14.3 mm). Take care not to exceed this to prevent binding or thread deformation during assembly.
• Torque Limits: Maximum probe case installation torque is 33.9 N-m (300 in-lbf). The recommended nominal installation torque is 11.2 N-m (100 in-lbf).
• Cable Bend Radius: Maintain a minimum cable bend radius of 25.4 mm (1.0 in) along the entire FEP cable run to prevent physical wear and signal impedance issues.
• Connector Assembly: Mate the gold-plated ClickLoc connector finger-tight. Ensure a clear tactile and auditory "click" is felt to confirm a secure mechanical and electrical connection.
• Gap Setting: Mount the probe with the correct mechanical gap (typically 1.27 mm or 50 mils) relative to the target shaft, matching system calibration and your monitoring module's zero-point.

Compliance and Certifications

• Option 05 Approvals: Approved for hazardous areas globally.
• CSA/NRTL: Class I, Division 1, Groups A, B, C, and D (when installed with appropriate barriers).
• ATEX/IECEx: Ex ia IIC T5...T1 Ga (for Intrinsically Safe systems).
• Entity Parameters: Ui = -28 V, Ii = 140 mA, Pi = 0.91 W, Ci = 1.5 nF, Li = 610 uH.