330901-00-08-10-02-00 Bently Nevada | Vibration Position Probe

Product Overview

The 330901-00-08-10-02-00 is a high-precision Bently Nevada 3300 NSv (Narrow System vent) proximity probe designed for machinery with tight internal clearances or small-diameter shaft targets. This model features a compact 0.8-inch case length, making it ideal for restricted mounting spaces in centrifugal compressors and small turbines. Engineered for industrial reliability, it provides non-contact displacement and vibration measurements where standard larger probes cannot fit. Its 1/4-28 UNF threaded body allows for fine-tuned gap adjustment, ensuring accurate data acquisition for critical asset protection.

Technical Configuration

The model number 330901-00-08-10-02-00 specifies a compact hardware configuration tailored for specific mechanical footprints:

• Unthreaded Length (00): 0.0 inches; fully threaded barrel for versatile mounting.
• Overall Case Length (08): 0.8-inch compact case length for shallow engagement.
• Total Length (10): 1.0 meter (39 inches) of integrated probe cable.
• Connector and Cable Type (02): Miniature coaxial ClickLoc™ connector with standard cable.
• Agency Approval (00): Not required; ideal for non-hazardous area applications.

Technical Specifications

Installation Guide

The 3300 NSv probe requires precise mechanical gapping for optimal linearity. During installation, use a digital voltmeter connected to the Proximitor® to set the electrical center point.

Mounting Best Practices

Ensure the mounting bracket is rigid to avoid introducing mechanical noise into the vibration signal. The ClickLoc™ connector should be seated until a tactile "click" is felt, ensuring a secure 15N pull-out resistance. For this non-armored version, the cable should be properly supported in a conduit or tray to prevent abrasion or accidental snagging during operation.

Engineering Advantages

The 3300 NSv series is specifically weight-optimized, starting at 14 g, to prevent mechanical resonance issues when monitoring smaller shafts. The 330901 series utilizes the ClickLoc™ connector system, which solves the common problem of connector loosening due to machine vibration. By providing a stable electrical link, this system ensures that the low-voltage eddy current signals are transmitted without attenuation, which is vital for high-speed machinery diagnostics.

Technical FAQs

Q1: Why choose a 0.8-inch case length over a longer version?
A1: The 0.8-inch case is ideal for surface-mount brackets or thin-walled housings where a longer probe would protrude unnecessarily or interfere with other internal components.

Q2: Is this probe compatible with standard 3300 XL Proximitors?
A2: No, NSv probes must be used with a dedicated 3300 NSv Proximitor® Sensor to ensure the correct scale factor and linearity.

Q3: What is the maximum engagement for the 1/4-28 UNF thread?
A3: For the 0.8-inch case length, the maximum engagement is the full length of the case (approx. 20mm), allowing the probe to be seated as deep as needed for accurate shaft gapping.