330104-00-07-10-02-00 Bently Nevada 3300 XL Proximity Probe

Product Overview

The Bently Nevada 330104-00-07-10-02-00 is a high-performance 3300 XL 8mm proximity probe designed for critical machinery protection. Utilizing eddy current technology, this sensor provides precise, non-contact measurements of vibration and shaft position in high-speed rotating equipment. It is engineered to perform reliably on steam turbines, compressors, and pumps, delivering the microscopic accuracy required to monitor fluid-film bearing stability and prevent catastrophic mechanical failure.

Technical Configuration

The model number 330104-00-07-10-02-00 reflects a specific configuration tailored for industrial monitoring systems:

Unthreaded Length Option

00: Specifies a 0 mm unthreaded length. The full-length threading on the probe case allows for maximum versatility during bracket mounting or deep-hole installation.

Overall Case Length Option

07: Indicates a 70 mm total case length. This dimension is optimized for narrow installations or specific bearing housing depths where standard lengths may not fit.

Total Length Option

10: Represents a 1.0 meter (3.3 feet) total cable length. This connects the probe tip directly to an extension cable or Proximitor sensor near the machine.

Connector and Cable Option

02: Features the miniature coaxial ClickLoc™ connector with standard cable. This connector provides a vibration-proof, moisture-sealed link to ensure consistent signal transmission.

Agency Approval Option

00: Indicates standard approvals (typically North American or multi-regional safety certifications) without specific local-only restrictive suffixes.

Technical Specifications

Engineering Installation & Maintenance Guide

Precision setup is required to maintain system integrity. Follow these engineering guidelines:

Gap Voltage Setup

During installation, adjust the probe until the DC gap voltage at the Proximitor reads -10.0 VDC. This ensures the probe is positioned at the exact center of its linear range for maximum vibration swing capacity.

Cable Management

Ensure the coaxial cable maintains a minimum bend radius of 25.4 mm (1.0 inch). Sharp bends or overtightening zip-ties can damage the internal shielding, leading to electronic noise and false alarms.

Mounting Precautions

Use a torque wrench to prevent over-tightening the probe case, which can stress the internal electronics. Verify that the probe tip is clear of any side-wall interference to avoid "side-viewing" errors in the signal.

Engineering Advantages

The 3300 XL series is the industry standard for durability. Its Polyphenylene Sulfide (PPS) tip is molded directly to the probe body, creating a hermetic seal against high-pressure oil and corrosive fluids. This sensor is fully compatible with the Bently Nevada 3500 series machinery protection system, offering seamless integration for plant-wide asset management and TSI (Turbine Supervisory Instrumentation) requirements.

Technical FAQs

Q1: How do I verify if the probe cable is damaged?
A1: Use an ohmmeter to check the resistance between the center pin and outer shell. A "short" or an extremely high resistance (Open Loop) usually indicates a cable failure or loose connector.

Q2: Can this probe replace an older 3300 series probe?
A2: Yes. The 3300 XL series is designed to be backward compatible with standard 3300 series Proximitor sensors and extension cables, simplifying facility maintenance.

Q3: Why is the gap voltage critical?
A3: If the gap voltage is too low or too high, the probe may move out of its linear range during a vibration event, causing the monitoring system to report inaccurate or "clipped" data.