Description

The Bently Nevada 330101-00-14-10-02-05 is a fully-threaded 8 mm proximity probe configuration belonging to the 3300 XL 8 mm Proximity Transducer System. This specific variant features a 1.4-inch overall case length with no unthreaded portion (0.0 inches unthreaded length), a total cable length of 1.0 meter (3.3 feet) terminated with a miniature coaxial ClickLoc connector, and a standard (non-armored) cable. It is fully certified with CSA, ATEX, and IECEx hazardous area approvals (Agency Approval Option 05), making it distinct from non-certified (-00) configurations and armored (-02 base) alternatives.

As a key component of machinery protection and condition monitoring chains, this eddy-current sensor provides high-precision, non-contact measurement of static and dynamic shaft displacement. It interfaces seamlessly with a 330180 series Proximitor sensor and a standard 3300 XL extension cable to supply reliable signal data to 3500 series monitoring racks, preventing catastrophic failures in high-speed turbomachinery.

Features

• Non-contact eddy current principle for high-precision displacement and vibration measurement.
• Standard 3/8-24 UNF external threads across the entire 1.4-inch case length, ideal for tight-clearance bearing housings.
• Integral 1.0-meter (3.3 feet) standard coaxial cable with no external armor, reducing cable profile weight and volume in closed conduits.
• Gold-plated miniature ClickLoc coaxial connector offers robust coupling with minimal signal attenuation.
• Exceptional environmental resistance with a rugged probe tip material designed to withstand hot oil, moisture, and chemical exposure.
• Agency Approval Option 05, certifying the probe for intrinsically safe applications in explosive atmospheres.

Applications

This proximity probe is ideal for critical rotating machinery in power generation, oil and gas, petrochemical, and water processing industries. Common deployment scenarios include:

• Shaft radial vibration monitoring in steam and gas turbines.
• Thrust (axial displacement) measurement on compressor rotors.
• Rotor position and casing expansion tracking in high-power industrial pumps.
• Hydroelectric generator shaft runout and eccentricity analysis.
• General bearing oil film clearance and machinery health monitoring.

Ordering Information

Technical Specifications

Connections and Interfaces

The sensor features a direct physical connection layout designed for stable signal transmission under high vibration conditions:

Installation Guidelines

Ensure correct mechanical installation to maintain system accuracy and prevent electrical noise:

• Gap Adjustment: Mechanically adjust the probe position within the bearing housing until the Proximitor sensor output reads the specified DC bias voltage corresponding to the center of the linear calibration range (typically -10.0 Vdc, equivalent to a 1.27 mm or 50 mils gap).
• Locking Nut torque: Secure the probe with a threaded locking nut once gapped, adhering to recommended torque limits to prevent thread damage or housing distortion.
• Shielding and Grounding: Maintain complete electrical isolation between the coaxial cable shield and the machine casing. Connect shields to the common instrument ground only at the Proximitor sensor side.
• Cable Protection: Route the 1.0-meter standard cable inside a metal conduit or protective tray to safeguard it from mechanical abrasion and chemical pooling.

Compliance and Certifications

This 330101 probe configuration is certified to rigorous international safety and quality standards for industrial environments:

• CSA: Approved for Class I, Division 1 and 2 hazardous areas.
• ATEX/IECEx: Intrinsically safe for gas and dust environments (Ex ia IIC T5...T1 Ga; Ex ia IIIC T90 degC...T280 degC Dc) and non-sparking/increased safety (Ex nA/ec IIC T5...T1 Gc).
• IEC 68-2-3: Complies with standard moisture and humidity testing conditions.