Bently Nevada 330701-00-40-10-02-05 3300 XL 11 mm Proximity Probe

Description

330701-00-40-10-02-05 specifies this 3300 XL 11 mm proximity probe configuration featuring a 1/2-20 UNF-2A standard mount without armor, a fully threaded body (Option 00, 0.0 in unthreaded), a 4.0 in overall case length (Option 40), and a 1.0 m (3.3 ft) total length (Option 10). Unlike variants with stainless steel armor (such as the 330702 series) or variants with integrated connector protectors (Option 01), this probe utilizes a lightweight, unarmored 75-ohm triaxial cable and terminates in a standard miniature coaxial ClickLoc connector (Option 02), providing a streamlined profile for standard industrial mounting conduits.

This eddy-current displacement sensor is designed for non-contacting vibration and position measurements. When paired with a 3300 XL 11 mm Proximitor Sensor (such as the 330780) and a compatible extension cable, it forms a complete 3300 XL 11 mm Proximity Transducer System. The 11 mm tip diameter extends the linear measurement range to 4.0 mm (160 mils), making it ideal for monitoring larger shaft displacements, rotor position, and axial movement on high-speed industrial compressors, steam turbines, and other critical rotating machinery.

Features

• Option 00 Unthreaded Case: Provides a fully threaded 1/2-20 UNF-2A outer casing with zero unthreaded length for maximum thread engagement and secure seating.
• Option 40 Case Length: Standard 4.0-inch overall case length suitable for deep-penetration mounting brackets.
• Option 10 Total Length: 1.0-meter (3.3 feet) integral probe cable length, designed to connect with a standard 4.0-meter extension cable.
• Option 02 Connector: Fitted with a standard miniature coaxial ClickLoc connector and standard triaxial FEP-insulated cable without pre-installed connector armor or protector sleeves.
• Option 05 Agency Approvals: Certified with multiple hazardous area approvals, enabling deployment in intrinsically safe and non-incendive environments globally.
• High-Resistance Tip Seal: Constructed with a polyphenylene sulfide (PPS) tip and Viton O-ring seal to prevent process media or oil leaks through the case.

Applications

This 11 mm probe is used for industrial machinery protection in demanding rotating environments. Typical applications include shaft vibration monitoring, axial thrust position measurement, and rotor eccentricity analysis on utility steam turbines, industrial gas turbines, centrifugal compressors, and generators. It is designed to withstand the harsh conditions of petrochemical plants, power generation facilities, oil refineries, and gas pipelines.

Ordering Information

Technical Specifications

Installation Guidelines

During installation, ensure that the recommended mounting torque of 15.2 N-m (133 in-lb) is applied, without exceeding the maximum structural limit of 45.2 N-m (400 in-lb). The unthreaded portion is 0.0 inches, meaning the casing can be fully engaged with the mounting port. Maintain a minimum bend radius of 25.4 mm (1.0 in) along the triaxial FEP cable. Connectors must be kept clean, dry, and free of oil. If the connection is expected to face moisture or severe oil exposure, standard physical boots or connector protectors are highly recommended. For hazardous locations, install the probe in accordance with the specified control drawings.

Compliance and Certifications

• ATEX/IECEx intrinsically safe rating: Ex ia IIC T5...T1 Ga for hazardous gas atmospheres.
• ATEX/IECEx dust protection rating: Ex ia IIIC T90degC...T280degC Dc.
• ATEX/IECEx Zone 2 ec/nA rating: Ex nA IIC T4/T5 Gc, Ex ec IIC T4/T5 Gc.
• North American intrinsically safe certifications: Class I, Zone 0, AEx/Ex ia IIC T5...T1 Ga; Class I, Division 1, Groups A, B, C, D; Class II, Groups E, F, G; Class III.
• North American non-incendive certifications: Class I, Division 2, Groups A, B, C, D; AEx/Ex nA IIC T4/T5 Gc; AEx/Ex ec IIC T4/T5 Gc.
• RoHS compliant and CE marked for European Industrial Environments (EN 61000-6-2 and EN 61000-6-4 standards).