330101-00-08-05-02-00 | Bently Nevada 8 mm Probe 0.5 m Cable

Introduction to the 330101-00-08-05-02-00

Over the years, industrial machinery monitoring has evolved from simple manual checks to sophisticated electronic systems. The 330101-00-08-05-02-00 from Bently Nevada represents a key step in this evolution, offering a robust solution for measuring shaft vibration and position. This 3300 XL 8 mm probe, with a 3/8-24 UNF thread and without armor, is designed for demanding environments where accuracy and durability matter.

When machine downtime threatens production targets, the 330101-00-08-05-02-00 provides reliable data to help maintenance teams act before failures occur. Its patented TipLoc molding method creates a stronger bond between the probe tip and body, while the CableLoc design delivers 330 N (75 lbf) pull strength to secure the cable and tip.

Key Features and Technical Specifications

• Probe diameter: 8 mm with a thicker PPS plastic encapsulation for ruggedness.
• Overall case length: 0.8 inches (option 08).
• Total cable length: 0.5 meter (1.6 feet) with miniature coaxial ClickLoc connector.
• Nominal probe DC resistance: 7.45 ± 0.50 ohms for the 0.5 m length.
• 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 standard 5 or 1 meter systems.
• Probe tip material: Polyphenylene sulfide (PPS).
• Probe case material: AISI 303 or 304 stainless steel.
• Operating temperature range: -52°C to +177°C (-62°F to +350°F) for standard probe.
• Weight: 323 g/m (11.4 oz).

One distinctive spec is the patented CableLoc design providing 330 N (75 lbf) pull strength. This means the probe cable stays securely attached even under mechanical stress, reducing the risk of signal loss or physical damage during operation.

Applications and Use Cases

In rotating machinery such as turbines, compressors, and pumps, the 330101-00-08-05-02-00 monitors radial vibration and axial position. Its 2 mm linear range covers the typical clearance needed for most industrial machines. For example, in a steam turbine application, the probe helps detect early signs of bearing wear or imbalance, allowing scheduled maintenance rather than emergency shutdowns. Additionally, the probe’s robust design suits harsh environments where temperature extremes or physical abuse are common.

Installation and Setup

Mounting the 3300 XL 8 mm probe requires a 3/8-24 UNF threaded hole in the machine casing. The recommended gap setting for radial vibration is -9 Vdc, approximately 1.27 mm (50 mils) from the target. Use three-conductor shielded triad cable for field wiring, with conductor sizes from 0.2 to 1.5 mm² (16 to 24 AWG). The maximum field wiring length between the Proximitor Sensor and monitor is 305 meters (1,000 feet). Always follow the manufacturer’s manual for proper torque and clearance adjustments.

Maintenance and Reliability

Routine inspection of the probe and cable connections helps maintain measurement accuracy. The stainless steel case and PPS tip resist corrosion and wear, extending service life. For environments with high humidity, the probe shows less than 3% change in Average Scale Factor (ASF) when tested at 93% humidity for up to 56 days per IEC standard 68 2 3. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal. Regular checks of the O-ring seal and connector integrity are recommended per the manufacturer’s guidelines.

Compatibility and Integration

The 330101-00-08-05-02-00 works with Bently Nevada 3300 XL Proximitor Sensors and monitoring systems. The miniature coaxial ClickLoc connector ensures a secure, quick connection. For system integration, the probe’s standard ISF of 7.87 V/mm simplifies calibration across multiple channels. Refer to the official Bently Nevada documentation for detailed compatibility with specific monitors and software.

Frequently Asked Questions

Q: What is the linear range of the 330101-00-08-05-02-00?

A: The linear range is 2 mm (80 mils), beginning 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 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 type of connector does this probe use?

A: It uses a miniature coaxial ClickLoc connector with standard cable.

Q: What is the pull strength of the CableLoc design?

A: The CableLoc design provides 330 N (75 lbf) pull strength.

Product Support and Availability

The 330101-00-08-05-02-00 is available from Petro Auto Tech. Please verify current lifecycle status and availability before ordering. Our team can assist with technical questions and cross-references.