330101-00-12-10-12-05 | Bently Nevada 8 mm Probe 1.0 m

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

When machine vibration threatens uptime, the 330101-00-12-10-12-05 from Bently Nevada provides precise, real-time data. This 3300 XL 8 mm probe uses a 3/8-24 UNF thread and a 1.0 meter (3.3 feet) total length. It is built for harsh industrial environments where accuracy and durability are non-negotiable.

Key Features and Technical Specifications

• Manufacturer: Bently Nevada
• Product Type: 3300 XL 8 mm probe with 3/8-24 UNF thread
• Unthreaded Length: 0.0 inches
• Overall Case Length: 1.2 inches
• Total Length: 1.0 meter (3.3 feet)
• Connector: Miniature coaxial ClickLoc with FluidLoc cable
• Approvals: CSA, ATEX, IECEx

The probe tip is molded from PPS plastic, providing a thicker encapsulation for the coil. This design makes the probe more rugged and resistant to physical abuse. The probe case is made of AISI 303 or 304 stainless steel, ensuring long-term durability.

Why Choose the 330101-00-12-10-12-05?

This probe stands out because of its patented TipLoc and CableLoc designs. The TipLoc molding method creates a robust bond between the probe tip and body, reducing the risk of failure. The CableLoc design provides 330 N (75 lbf) pull strength, securely attaching the cable and tip. Additionally, the optional FluidLoc cable prevents oil and other liquids from leaking through the cable interior, a common issue in rotating machinery.

Applications and Use Cases

In turbomachinery, compressors, and pumps, the 330101-00-12-10-12-05 delivers accurate shaft vibration and position measurements. Its linear range of 2 mm (80 mils) covers typical radial vibration monitoring needs. The recommended gap setting of -9 Vdc (approximately 1.27 mm) ensures optimal performance. This probe is suitable for applications requiring ATEX or IECEx certification, such as hazardous areas in oil and gas facilities.

Installation and Setup

Proper installation is critical for accurate readings. The 3/8-24 UNF thread allows secure mounting into standard probe holders. Ensure the unthreaded length (0.0 inches) and overall case length (1.2 inches) match your mounting requirements. The miniature coaxial ClickLoc connector simplifies cable attachment, while the FluidLoc cable option prevents liquid ingress. For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable, with a maximum length of 305 meters (1,000 feet) between the Proximitor Sensor and monitor.

Maintenance and Reliability

Regular inspection of the probe and cable is recommended to ensure reliable operation. 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). The probe is designed to seal differential pressure between the tip and case, using a Viton® O-ring. Although probes are not pressure tested before shipment, you can contact the custom design department if pressure testing is required for your application.

Compatibility and Integration

The 330101-00-12-10-12-05 is part of the 3300 XL family, designed to work with Bently Nevada Proximitor sensors and monitoring systems. The probe's nominal DC resistance is 7.59 ± 0.50 ohms for a 1.0 meter length, ensuring compatibility with standard 3300 XL extension cables. The incremental scale factor is 7.87 V/mm (200 mV/mil) ± 5% for 1-meter systems, providing consistent output across the linear range.

Troubleshooting Common Issues

If readings drift or become erratic, check the probe gap and cable connections. Ensure the target is within the linear range (0.25 to 2.3 mm). Verify that the probe tip is not damaged and that the cable is not kinked or stressed. For extended temperature applications, confirm the probe model supports the required range. If issues persist, consult the official Bently Nevada documentation or contact Petro Auto Tech for technical support.

FAQ about the 330101-00-12-10-12-05

Q: What is the linear range of this probe?

A: The linear range is 2 mm (80 mils), starting at approximately 0.25 mm from the target and extending to 2.3 mm.

Q: What approvals does this probe have?

A: The probe has CSA, ATEX, and IECEx approvals, making it suitable for hazardous locations.

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

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

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 probe tip.

Product Support and Availability

The 330101-00-12-10-12-05 is available from Petro Auto Tech. Contact our team for current pricing and lead times. We are here to help you select the right probe for your application.