330101-00-12-10-11-00 | Bently Nevada 8 mm Probe 1.0 m

Introduction to the Bently Nevada 330101-00-12-10-11-00

When machinery vibration threatens uptime, the 330101-00-12-10-11-00 from Bently Nevada provides precise measurement. This 3300 XL 8 mm probe features a 3/8-24 UNF thread and a 1.0 meter (3.3 feet) total length. It is engineered for robust performance in demanding industrial environments.

As part of the 3300 XL series, this probe offers a rugged design with a molded PPS plastic tip and stainless steel case. The 8 mm diameter provides thicker encapsulation of the probe coil, resulting in a more durable sensor. This makes it a reliable choice for continuous vibration monitoring.

Key Features and Technical Specifications

• Manufacturer: Bently Nevada
• Product Type: 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor
• Overall Case Length: 1.2 inches
• Total Length: 1.0 meter (3.3 feet)
• Connector: Miniature coaxial ClickLoc connector with connector protector, FluidLoc cable
• Nominal Probe DC Resistance (RPROBE): 7.59 ± 0.50 Ω
• Extension Cable Capacitance: 69.9 pF/m (21.3 pF/ft) typical
• Linear Range: 2 mm (80 mils), from 0.25 to 2.3 mm (10 to 90 mils)
• Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ± 5%

The patented TipLoc molding method provides a robust bond between the probe tip and body. The CableLoc design offers 330 N (75 lbf) pull strength for secure cable attachment. The FluidLoc cable option prevents oil and other liquids from leaking through the cable interior.

Applications and Use Cases

The 330101-00-12-10-11-00 is ideal for radial vibration monitoring on rotating machinery such as turbines, compressors, and pumps. Its 2 mm linear range and high sensitivity make it suitable for detecting subtle shaft displacements. The probe's robust construction ensures reliable operation in harsh conditions, including high humidity and temperature extremes.

With a recommended gap setting of -9 Vdc (approximately 1.27 mm), this probe integrates seamlessly with 3300 XL Proximitor systems. It is commonly used in petrochemical, power generation, and manufacturing facilities where machine health is critical.

Installation and Setup

Proper installation is essential for accurate readings. The 3/8-24 UNF thread allows secure mounting, with a maximum thread engagement of 0.563 inches. Recommended case torque is 11.2 N•m (100 in•lbf) for standard forward-mounted probes. For the first three threads, use a recommended torque of 7.5 N•m (66 in•lbf).

Field wiring should use 3-conductor shielded triad cable with tinned wiring, sized 0.2 to 1.5 mm² (16 to 24 AWG). Maximum field wiring length between the probe and monitor is 305 meters (1,000 feet). Follow the frequency response graphs in the datasheet to account for signal rolloff at high frequencies with longer wiring.

Maintenance and Reliability

The 3300 XL 8 mm probe is designed for long-term reliability. Its stainless steel case and PPS tip resist physical abuse and environmental stress. The probe operates in temperatures from -52°C to +177°C (-62°F to +350°F) for standard versions. For extended temperature ranges, the probe tip can withstand up to +218°C (+425°F).

Regular inspection of the probe and cable for damage is recommended. The FluidLoc cable option prevents oil leakage, reducing maintenance needs. The probe's pressure seal, made of Viton® O-ring, should be checked periodically if the probe is exposed to differential pressure.

Compatibility and Integration

This probe is part of the 3300 XL family and is compatible with Bently Nevada Proximitor sensors and monitoring systems. The miniature coaxial ClickLoc connector ensures a secure, reliable connection. The 1.0 meter total length is suitable for many mounting configurations.

For replacement or upgrade, the 330101-00-12-10-11-00 meets original specifications, ensuring seamless integration with existing 3300 XL systems. Verify compatibility with your specific monitor model before ordering.

Frequently Asked Questions

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

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

Q: What is the recommended gap setting for radial vibration?

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

Q: What is the probe's DC resistance?

A: The nominal probe DC resistance is 7.59 ± 0.50 Ω.

Q: Can this probe be used in high-temperature environments?

A: Yes, the standard probe operates from -52°C to +177°C, and extended temperature versions handle up to +218°C for the tip.

Q: What is the maximum field wiring length?

A: The maximum length is 305 meters (1,000 feet) between the probe and the monitor.

Product Support and Availability

The 330101-00-12-10-11-00 is available from Petro Auto Tech. Contact our team for current availability and lead times. We are ready to assist with your industrial automation needs.