Bently Nevada 330101-04-16-10-02-05 3300 XL 8 mm Proximity Probe

Description

Option 04 (0.4 in unthreaded length) and Option 16 (1.6 in overall case length) specify this 3300 XL 8 mm proximity probe configuration — 330101-04-16-10-02-05.

Unlike variants configured with stainless steel armor (such as the 330102 series) or FluidLoc water-blocking cable (Option 11 or 12), this model employs a standard unarmored coaxial cable (Option 02) and a 1.0-meter total length (Option 10). It utilizes standard 3/8-24 UNF threads and features a 0.4-inch unthreaded portion, making it suitable for bearing housings requiring specific insertion depths. This configuration includes Option 05 approvals, verifying compliance with CSA, ATEX, and IECEx hazardous area safety certifications.

Features

• Option 04 specifies a 0.4 in unthreaded portion of the probe case.
• Option 16 specifies a 1.6 in overall case length with 3/8-24 UNF-2A threads.
• Option 10 defines a total probe length of 1.0 meter (3.3 feet) for direct pairing with extension cables.
• Option 02 provides a miniature male coaxial ClickLoc connector with standard (non-FluidLoc) cable.
• Option 05 provides CSA, ATEX, and IECEx agency approvals for hazardous area environments.
• Unarmored construction simplifies cable routing through tight conduits and conduits with small-bend radii.
• 8 mm tip diameter optimized for non-contact eddy-current displacement measurements.

Applications

This proximity probe is used for non-contact vibration and shaft position measurements. Typical applications include shaft vibration and axial position monitoring in steam and gas turbines, compressor and pump rotor displacement, and rotating machinery protection in industrial plants.

Ordering Information

Technical Specifications

Installation Guidelines

Proper installation of the proximity probe is critical for accurate machinery vibration and axial position measurement. Standard guidelines include:

• Establish the correct probe gap (typically -9 Vdc or 1.27 mm / 50 mils) relative to the target shaft per system calibration.
• Ensure external thread engagement matches standard Class 2A limits and does not exceed 0.563 in to prevent binding.
• Route the standard coaxial cable utilizing proper industrial conduits to protect against abrasive environmental damage, avoiding tight bends below the minimum specified cable bend radius.
• Apply recommended hand-tight torque or finger-tight rules when connecting ClickLoc connectors; do not over-tighten, and use standard connector protectors where required.
• Always follow Bently Nevada installation drawings, such as 141092 for intrinsically safe (ia) installations and 140979 for non-incendive (nA/ec) designs.

Compliance and Certifications

• Hazardous Area Classifications: CSA, ATEX, IECEx intrinsically safe and non-sparking/non-incendive certifications (under Option 05 approvals)
• Intrinsically Safe (ia) Parameters: Ui = -28 V, Ii = 140 mA, Pi = 0.91 W, Ci = 1.5 nF, Li = 610 uH
• Intrinsically Safe Temp Classifications: T1 (-55 degC to +232 degC), T2 (-55 degC to +177 degC), T3 (-55 degC to +120 degC), T4 (-55 degC to +80 degC), T5 (-55 degC to +40 degC)