330101-00-08-10-11-CN | Bently Nevada 8 mm Probe, 1.0 m Cable

Introduction: The Evolution of Vibration Monitoring

In the world of industrial machinery, vibration monitoring has evolved from simple mechanical gauges to sophisticated electronic systems. The Bently Nevada 330101-00-08-10-11-CN represents a key step in this evolution, offering a robust 8 mm probe that withstands harsh conditions. This model, part of the 3300 XL series, provides accurate displacement measurements for rotating equipment. Engineers rely on such probes to detect early signs of bearing wear or imbalance, preventing costly downtime. The 330101-00-08-10-11-CN delivers consistent performance in demanding environments.

Core Specs and Design Features

The 330101-00-08-10-11-CN is a 3300 XL 8 mm probe with a 3/8-24 UNF thread and no armor. Its unthreaded length is 0.0 inches, overall case length is 0.8 inches, and total cable length is 1.0 meter (3.3 feet). The connector is a miniature coaxial ClickLoc with connector protector and FluidLoc cable. The probe tip material is polyphenylene sulfide (PPS), and the case is AISI 303 or 304 stainless steel. Key performance specs include:

• Linear Range: 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from target.
• Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±5% for 1 meter system over 0°C to +45°C.
• Deviation from Best Fit Straight Line (DSL): Less than ±0.025 mm (±1 mil) for 1 meter system at 0°C to +45°C.
• Probe DC Resistance: 7.59 ± 0.50 Ω for 1.0 meter probe length.
• Operating Temperature: Standard probe -52°C to +177°C.
• Weight: 323 g/m (11.4 oz).

These specs ensure precise and repeatable measurements for critical machinery protection.

Real-World Applications

In petrochemical plants, power generation facilities, and heavy manufacturing, the 330101-00-08-10-11-CN monitors shaft vibration and position. Its robust PPS tip and stainless steel case resist oil, moisture, and physical abuse. The FluidLoc cable prevents liquid leakage through the cable interior, making it ideal for environments with oil mist or coolant. For example, in a steam turbine application, this probe helps operators maintain safe clearances and avoid catastrophic failures. Its linear range of 2 mm covers typical vibration amplitudes in large rotating machinery.

Installation and Setup Guidance

When installing the 330101-00-08-10-11-CN, follow the recommended gap setting of -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration. Use field wiring of 0.2 to 1.5 mm² (16 to 24 AWG) with a 3-conductor shielded triad cable. Maximum field wiring length is 305 meters (1,000 feet) between the Proximitor Sensor and monitor. Ensure the probe tip is clean and properly aligned with the target surface. The ClickLoc connector provides secure attachment, and the FluidLoc cable option prevents oil wicking. Always consult the Bently Nevada manual for detailed mounting instructions.

Maintenance and Reliability

Regular inspection of the 330101-00-08-10-11-CN probe and cable is essential for long-term reliability. Check for physical damage, corrosion, or loose connections. The probe is designed to seal differential pressure using a Viton O-ring, but it is not pressure tested before shipment. In high-humidity environments (up to 93% relative humidity), the average scale factor changes less than 3% over 56 days per IEC 68-2-3. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature seal failure. Routine verification of the DC resistance and scale factor ensures measurement accuracy.

Compatibility and Integration

The 330101-00-08-10-11-CN is designed for use with Bently Nevada 3300 XL Proximitor Sensors and compatible monitoring systems. It works with standard 5 or 1 meter systems and 9 meter systems, with appropriate scale factor tolerances. The extension cable capacitance is 69.9 pF/m typical. For integration, ensure the Proximitor sensor matches the probe length and cable type. The probe's agency approval is country-specific (CN option). Contact Petro Auto Tech for compatibility with legacy or third-party systems.

Frequently Asked Questions

Q: What is the linear range of the 330101-00-08-10-11-CN?

A: The linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target, from 0.25 to 2.3 mm (10 to 90 mils).

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 operating temperature range for the standard probe?

A: The standard probe operates from -52°C to +177°C (-62°F to +350°F).

Q: What cable type does the 330101-00-08-10-11-CN use?

A: It uses a miniature coaxial ClickLoc connector with connector protector and FluidLoc cable.

Q: What is the incremental scale factor for this probe?

A: For a 1 meter system, the ISF is 7.87 V/mm (200 mV/mil) ±5% including interchangeability error.

Product Support and Availability

The Bently Nevada 330101-00-08-10-11-CN is in stock and ready to ship from Petro Auto Tech. As a trusted supplier of industrial automation parts, Petro Auto Tech offers competitive pricing and fast delivery. Please verify current lifecycle status and availability before ordering. Contact our team for any technical questions or to place an order.