330191-00-16-90-00 | Bently Nevada 3300 XL 8mm Proximity Probe

Product Overview

When machine vibration threatens uptime, the Bently Nevada 330191-00-16-90-00 delivers precise, reliable measurement. This 3300 XL 8 mm ETR probe is designed for permanent installation in critical rotating machinery, providing accurate shaft displacement and vibration data. Manufactured by Bently Nevada, a trusted name in condition monitoring, this probe is built to withstand harsh industrial environments.

The 330191-00-16-90-00 features a 3/8-24 UNF thread, a 1.6-inch overall case length, and a 9.0-meter (29.5 feet) total cable length. The unthreaded length is 0.0 inches, and the probe is supplied without armor. This configuration is ideal for applications where a standard probe is sufficient and space is limited.

Key Technical Specifications

Understanding the technical parameters is essential for ensuring compatibility and optimal performance. The following specifications are directly from the manufacturer's data:

Model: 330191 - 3300 XL 8 mm ETR Probe, 3/8-24 UNF thread, without armor

Overall Case Length: 1.6 inches

Total Length: 9.0 meters (29.5 feet)

Unthreaded Length: 0.0 inches (minimum)

Agency Approval: Not required

Probe Tip Material: Polyphenylene sulfide (PPS)

Probe Case Material: AISI 303 or 304 stainless steel

Cable Type: 75Ω triaxial, FEP or PFA insulated (depending on option)

Tensile Strength: 330 N (75 lbf) probe case to probe lead; 270 N (60 lbf) at connector

Connector Material: Gold-plated brass or beryllium copper

Maximum Connector Torque: 0.565 N•m (5 in•lbf)

Probe Case Thread: 3/8-24, maximum engagement 0.563 in

Weight: 323 g/m (11.4 oz)

These specifications ensure that the probe meets the rigorous demands of industrial vibration monitoring, providing accurate and repeatable measurements.

Industry Applications

The 330191-00-16-90-00 is suitable for a wide range of applications where reliable shaft vibration and position monitoring are critical. Common industries include:

Power Generation: Monitoring turbine and generator bearings to detect early signs of imbalance or misalignment.

Oil & Gas: Protecting compressors, pumps, and motors from excessive vibration that can lead to catastrophic failure.

Manufacturing: Ensuring the smooth operation of large rotating equipment such as paper mills, steel mills, and machine tools.

In each application, the probe's robust design and high tensile strength minimize the risk of damage from physical abuse, reducing unplanned downtime and maintenance costs.

Installation Guidance

Proper installation is critical for accurate measurements. Follow these general guidelines:

Mount the probe with the specified torque to avoid damaging the threads or the probe tip.

Ensure the probe tip is positioned correctly relative to the target surface, typically within the linear range of the sensor.

Route the cable securely, avoiding sharp bends or contact with moving parts, to prevent damage.

Use the recommended extension cable and connect to a compatible Bently Nevada monitor.

Always refer to the manufacturer's installation manual for detailed instructions specific to your machine.

Maintenance & Reliability

The 3300 XL series is designed for long-term reliability with minimal maintenance. The patented TipLoc and CableLoc designs provide a robust bond and high pull strength, reducing the likelihood of cable or tip failure. The probe's stainless steel case and PPS tip resist corrosion and wear.

To ensure continued performance, periodically inspect the probe and cable for signs of damage, such as cuts, abrasions, or loose connections. Verify that the mounting is secure and that the probe tip is clean. Regular checks help extend the service life and maintain measurement accuracy.

Buying Guide

When selecting a replacement or new probe, verify the following:

Confirm the thread size (3/8-24 UNF) matches your mounting hole.

Check the total cable length (9.0 meters) meets your routing requirements.

Ensure the probe is compatible with your existing monitor or system.

Consider whether you need an armored cable option for additional protection.

BluePLC Industrial offers the Bently Nevada 330191-00-16-90-00 as a new, original product in factory packing, backed by a 12-month warranty. Contact us to confirm availability and lead times.