3300 XL 8mm Bently Nevada 330103-00-25-10-02-00 Eddy Current Proximity Probe

Product Overview

The Bently Nevada 330103-00-25-10-02-00 belongs to the 3300 XL 8mm Proximity Transducer System, which remains the global benchmark for eddy current sensing technology. This specific probe configuration utilizes a 3/8-24 UNF thread pattern and is engineered to detect the physical distance between the probe tip and a conductive target material. Because the system operates on the principle of electromagnetic induction, it captures high-frequency vibration and displacement data without physical contact, thereby eliminating mechanical wear.

Technical Specifications

The following technical parameters define the 330103-00-25-10-02-00 configuration within the 3300 XL series:

• Model: 330103-00-25-10-02-00
• Unthreaded Length Option (00): 0.0 inches
• Overall Case Length Option (25): 2.5 inches
• Total Length Option (10): 1.0 meter (3.3 feet)
• Connector and Cable-Type Option (02): Miniature coaxial ClickLoc connector, standard cable
• Agency Approval Option (00): Not required
• Linear Range: 2.0 mm (80 mils)
• Nominal Sensitivity: 7.87 V/mm (200 mV/mil)
• Operating Temperature: -51 °C to +177 °C (-60 °F to +351 °F)
• Weight: 0.08 kg

Functional Characteristics

The 3300 XL 8mm probe system provides a significant upgrade in performance over previous displacement transducer designs. Primarily, the 133300-01 series (associated with the 3500 rack) and the 3300 XL probes feature complete interchangeability between probes, extension cables, and Proximitor sensors. This modularity simplifies spare parts inventory management and reduces field installation errors.

Furthermore, the probe tip consists of a polyphenylene sulfide (PPS) high-performance thermoplastic. This material creates a resilient seal that prevents moisture or oil from penetrating the internal sensing coil. The 330103-00-25-10-02-00 also incorporates a patented ClickLoc connector, which ensures a secure electrical connection while preventing the cable from loosening under high-vibration conditions.

Engineering Advantages

Engineers specify the 330103-00-25-10-02-00 for critical assets such as steam turbines, centrifugal compressors, and large-scale motors. Since the probe measures both static (gap) and dynamic (vibration) distances, it allows operators to monitor shaft centerline motion and radial vibration simultaneously.

The temperature-compensated design ensures that thermal expansion of the machine housing does not result in false vibration readings. Consequently, the sensor maintains high linearity and a stable voltage-to-distance ratio across its entire operating range. Moreover, the rugged stainless steel case provides high resistance to corrosive industrial environments and physical impacts during maintenance intervals.

FAQs

What is the significance of the 1.0-meter total length for this probe?The 1.0-meter length refers to the integrated cable attached to the probe head. In most Bently Nevada installations, this cable connects to an extension cable (typically 4.0 or 8.0 meters) to reach a total system length of 5.0 or 9.0 meters, matching the calibration of the Proximitor sensor.

Does the 330103-00-25-10-02-00 require a specific orientation for installation?While the probe is omnidirectional regarding the target shaft, the unthreaded and case length options (00 and 25) dictate how the probe mounts within the machine bracket or housing. Proper gapping using a voltmeter is essential during installation to ensure the probe tip resides within its linear range.

Can this probe withstand high-pressure environments?Yes, Bently Nevada 3300 XL 8mm probes are designed to be pressure-tight. The seal between the probe tip and the probe body can withstand pressure differentials, making them suitable for use in pressurized bearing housings.