330101-00-11-20-02-00 | Bently Nevada 8 mm Probe 2.0 m Cable

Introduction: The Evolution of Precision Monitoring

In the world of industrial machinery, the ability to detect early signs of wear or imbalance can mean the difference between a scheduled maintenance stop and a catastrophic failure. Over the past decades, vibration monitoring has evolved from simple mechanical sensors to sophisticated electronic systems that provide real-time data. The 330101-00-11-20-02-00 from Bently Nevada represents a key milestone in this evolution, offering engineers a robust, reliable tool for capturing critical rotor dynamics. With its patented TipLoc and CableLoc designs, this 8 mm probe brings enhanced durability and accuracy to the field.

Key Features & Technical Specs of the 330101-00-11-20-02-00

• The 330101-00-11-20-02-00 is a 3300 XL 8 mm probe with a 3/8-24 UNF thread and no armor.
• It features a 2.0 meter (6.6 feet) total length with a miniature coaxial ClickLoc connector and standard cable.
• The probe tip is made of polyphenylene sulfide (PPS) plastic, providing a thicker encapsulation for ruggedness.
• Probe case material is AISI 303 or 304 stainless steel (SST).
• Nominal probe DC resistance (RPROBE) is 7.88 ± 0.50 ohms for the 2.0 meter length.
• Linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target.
• Recommended gap setting for radial vibration is -9 Vdc, approximately 1.27 mm (50 mils).
• Incremental Scale Factor (ISF) is 7.87 V/mm (200 mV/mil) ± 5% for standard 5 or 1 meter systems over 0°C to +45°C.
• Operating temperature range for the standard probe is -52°C to +177°C (-62°F to +350°F).

Applications & Use Cases

This probe is ideal for monitoring radial vibration and axial position in rotating machinery such as turbines, compressors, and pumps. In petrochemical plants, for example, the 330101-00-11-20-02-00 helps operators detect shaft vibration early, preventing unplanned downtime. Similarly, in power generation, its robust design withstands harsh environments while delivering accurate data. The probe’s extended temperature range option further broadens its applicability in high-heat settings.

Installation & Setup

When installing the 330101-00-11-20-02-00, ensure the probe tip is properly positioned within the linear range of 0.25 to 2.3 mm from the target. Use the recommended gap setting of -9 Vdc for radial vibration measurements. Field wiring should 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 the monitor. The probe is designed to seal differential pressure using a Viton O-ring; contact the custom design department if pressure testing is required.

Maintenance & Reliability

To ensure long-term reliability, inspect the probe cable and connector periodically for signs of wear or damage. The patented CableLoc design provides 330 N (75 lbf) pull strength, reducing the risk of cable detachment. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal. For extended life, follow the manufacturer’s guidelines for storage and operation within the specified temperature range.

FAQ about the 330101-00-11-20-02-00

Q: What is the linear range of the 330101-00-11-20-02-00?

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 the 330101-00-11-20-02-00 use?

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

Q: What is the Incremental Scale Factor (ISF) for this probe?

A: The ISF is 7.87 V/mm (200 mV/mil) ± 5% for standard 5 or 1 meter systems over 0°C to +45°C.

Product Support & Availability

The 330101-00-11-20-02-00 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times. We also offer technical support to help with integration into your existing monitoring system.