Description

The Bently Nevada 330101-00-66-20-02-05 is a non-contact proximity probe engineered for high-precision, industrial-grade machinery vibration and shaft position monitoring. This specific configuration features a fully threaded 3/8-24 UNF steel body without protective armor, representing a specialized configuration featuring a 0.0-inch unthreaded length paired with a 6.6-inch overall case length. It is supplied with a 2.0-meter (6.6 feet) standard coaxial cable terminated with a gold-plated miniature ClickLoc connector without a connector protector, and is fully certified with CSA, ATEX, and IECEx agency approvals for safe deployment in hazardous zones. Operating as an essential component in the 3300 XL 8 mm Proximity Transducer System, this eddy-current sensor provides direct displacement measurements to safeguard critical rotating machinery such as gas and steam turbines, high-pressure compressors, and centrifugal pumps.

Features

• Standard 8 mm tip diameter optimized for eddy-current proximity measurements.
• Rugged stainless steel case without external armored conduit.
• Fully threaded body option featuring 0.0 inches of unthreaded length.
• Extended 6.6-inch overall case length designed for deep-reach machinery housing installations.
• 2.0-meter integrated standard coaxial cable configuration.
• High-integrity miniature coaxial ClickLoc connector with gold-plated contacts (no connector protector).
• Intrinsically safe hazardous area designs matching CSA, ATEX, and IECEx approvals.

Applications

This proximity probe is deployed globally across heavy-rotating industrial machinery systems, including:

• Non-contact shaft vibration and displacement monitoring in steam and gas turbine bearings.
• Rotor dynamic displacement and axial position monitoring in process compressors and utility pumps.
• Continuous condition monitoring on bearing housings and casing surfaces.
• Permanent machinery protection schemes integrated directly with Bently Nevada 3500 rack monitoring configurations.

Ordering Information

Technical Specifications

Installation Guidelines

To achieve long-term measurement accuracy and prevent installation failures, adhere to the following guidelines:

• Mount the probe with the appropriate probe gap distance in accordance with 3300 XL system calibration specs (typically 1.27 mm or 50 mils).
• Ensure the probe thread engagement does not exceed 0.563 inches to prevent binding during mounting into unthreaded or threaded brackets.
• Route integrated coaxial probe cables with proper mechanical support, avoiding sharp bends that exceed the minimum bend radius.
• Ensure proper shielding and grounding practices are enforced across all field wiring to minimize electrical noise interference in the vibration monitoring chain.
• Protect the miniature gold ClickLoc connector from moisture, dirt, and corrosive industrial atmospheres using clean junction boxes or connector covers.

Compliance and Certifications

This probe configuration is compliant and certified for safe deployment in hazardous locations:

• CSA Certification: Class I, Division 1 & 2, Groups A, B, C, D; Class II, Division 1 & 2, Groups E, F, G; Class III.
• ATEX/IECEx: Approved for intrinsically safe configurations (Ex ia IIC T5...T1 Ga) and non-sparking/increased safety (Ex nA / Ex ec IIC) when used with matching certified Proximitor sensors.
• RoHS: Compliant with standard restrictions on hazardous substances.