330101-00-12-10-11-05 | Bently Nevada 3300 XL 8 mm Probe

Introduction to the 330101-00-12-10-11-05

When machinery vibration threatens uptime, the 330101-00-12-10-11-05 from Bently Nevada provides reliable measurement. This 3300 XL 8 mm probe features a 3/8-24 UNF thread and is designed without armor. It is part of the trusted 3300 XL family, known for robust performance in industrial environments.

With a total length of 1.0 meter (3.3 feet), this probe suits tight installations. The unthreaded length is 0.0 inches, and the overall case length is 1.2 inches. These dimensions make it easy to position in bearing housings and other critical locations.

For engineers seeking dependable vibration monitoring, the 330101-00-12-10-11-05 delivers accurate data. Its design incorporates patented TipLoc and CableLoc methods for enhanced durability. This probe is built to withstand physical abuse, reducing the risk of downtime.

Key Features and Technical Specifications

• Manufacturer: Bently Nevada
• Product Type: 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor
• Unthreaded Length: 0.0 inches
• Overall Case Length: 1.2 inches
• Total Length: 1.0 meter (3.3 feet)
• Connector: Miniature coaxial ClickLoc connector with connector protector, FluidLoc cable
• Approvals: CSA, ATEX, IECEx
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 303 or 304 stainless steel
• Nominal Probe DC Resistance: 7.59 ± 0.50 ohms

The 330101-00-12-10-11-05 offers a linear range of 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target. The recommended gap setting for radial vibration is -9 Vdc, approximately 1.27 mm (50 mils). This ensures accurate readings in most applications.

Its incremental scale factor is 7.87 V/mm (200 mV/mil) ± 5% for standard 5 or 1 meter systems. This high sensitivity allows precise detection of small changes in vibration.

Applications and Use Cases

In rotating machinery, the 330101-00-12-10-11-05 monitors shaft vibration and position. It is ideal for turbines, compressors, pumps, and motors. Because it is an 8 mm probe, it provides a thicker encapsulation of the probe coil, making it more rugged than smaller probes.

This probe is suitable for environments where oil or other liquids may be present, thanks to the optional FluidLoc cable. The FluidLoc option prevents liquids from leaking out of the machine through the cable interior, enhancing reliability.

For maintenance engineers, this probe simplifies condition monitoring. Its robust design reduces the need for frequent replacements, saving time and cost.

Installation and Setup

When installing the 330101-00-12-10-11-05, ensure the target surface is clean and free of debris. The probe should be mounted securely using the 3/8-24 UNF thread. Follow the manufacturer's guidelines for gap setting to achieve optimal performance.

Field wiring should use 0.2 to 1.5 mm² (16 to 24 AWG) wire. A three-conductor shielded triad cable is recommended, with tinned field wiring. The maximum length between the 3300 XL Proximitor Sensor and the monitor is 305 meters (1,000 feet).

Always verify the connector type—miniature coaxial ClickLoc—and ensure a secure connection. Proper installation prevents signal loss and ensures accurate measurements.

Maintenance and Reliability

Regular inspection of the probe and cable is essential for long-term reliability. Check for any signs of physical damage or wear. The probe's operating temperature range is -52°C to +177°C (-62°F to +350°F) for standard versions, making it suitable for harsh conditions.

Exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal. Therefore, avoid such extreme cold unless the probe is rated for extended temperature ranges.

The probe is designed to seal differential pressure between the tip and case. However, it is not pressure tested before shipment. If your application requires pressure seal testing, contact the custom design department.

Compatibility and Integration

The 330101-00-12-10-11-05 works with Bently Nevada 3300 XL Proximitor Sensors and monitoring systems. It is compatible with standard 5 or 1 meter systems, providing consistent performance.

The probe's connector and cable options include the miniature coaxial ClickLoc connector with connector protector and FluidLoc cable. This ensures a secure, liquid-resistant connection.

For integration, ensure the system supports the probe's linear range and scale factor. The probe's output is -1 to -17 Vdc over the linear range, which is standard for eddy-current sensors.

Troubleshooting and Common Issues

If readings appear erratic, check the probe tip for damage or contamination. Clean the target surface if necessary. Verify that the cable is not kinked or stressed, as this can affect signal integrity.

Another common issue is improper gap setting. Use the recommended -9 Vdc setting for radial vibration. If readings drift, inspect the connector for corrosion or loose connections.

For persistent problems, consult the Bently Nevada documentation or contact Petro Auto Tech for technical support.

FAQ

What is the linear range of the 330101-00-12-10-11-05?

The linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target.

What is the recommended gap setting for radial vibration?

The recommended gap setting is -9 Vdc, approximately 1.27 mm (50 mils).

What approvals does the 330101-00-12-10-11-05 have?

It has CSA, ATEX, and IECEx approvals.

What is the maximum field wiring length?

The maximum length between the Proximitor Sensor and the monitor is 305 meters (1,000 feet).

Product Support and Availability

The 330101-00-12-10-11-05 is available from Petro Auto Tech. Contact us for current stock and pricing. We are here to help you with your industrial automation needs.