Bently Nevada 330102-00-20-10-02-00 3300 XL 8 mm Proximity Probe

Key Parameters and Features

Core Features & Advantages

• High-Precision Non-Contact Measurement: The module's standout feature is its ability to provide accurate, stable signal output proportional to the gap between the probe tip and the target surface. It is capable of both static (position) and dynamic (vibration) measurements, making it ideal for comprehensive machinery health monitoring.

• Complete Interchangeability: The 3300 XL system supports complete interchangeability of probes, extension cables, and Proximitor sensors. This eliminates the need for time-consuming bench calibration or individual component matching, simplifying installation and reducing spare parts inventory.

• Robust Design for Harsh Environments: The probe is constructed with AISI 303/304 stainless steel case material and a PPS probe tip, ensuring durability in demanding industrial conditions. The operating temperature range of -51°C to +177°C makes it suitable for extreme environments.

• API 670 Compliance: The 3300 XL 8 mm system fully complies with the American Petroleum Institute's API 670 Standard (4th Edition) for mechanical configuration, linear range, accuracy, and temperature stability, ensuring suitability for critical applications in oil and gas and power generation.

Typical Applications

The 330102-00-20-10-02-00 is widely used for critical rotating machinery monitoring across various heavy industries:

• Power Generation: Monitoring steam and gas turbines, generators

• Oil & Gas: Safeguarding centrifugal compressors, pumps, and fans

• General Industry: Protecting large motors, gearboxes, and other vital assets

Frequently Asked Questions (FAQ)

Q1: What is the primary function of the 330102-00-20-10-02-00?
A: It is a non-contact eddy current proximity probe that measures displacement and vibration on critical rotating machinery by providing a voltage output proportional to the gap between the probe tip and a conductive target surface.

Q2: What is the recommended gap for installation?
A: The recommended gap is 1.27 mm (50 mils) at approximately -9 VDC.

Q3: What are the key electrical specifications?
A: Sensitivity is 7.87 V/mm (200 mV/mil) ±5%. The measurement range is 0.25 mm to 2.3 mm (10-90 mils).

Q4: How do I diagnose if the probe is functioning properly?
A: Check the DC gap voltage reading at the monitor or extension cable connector. A healthy system should read between -9 V and -12 V DC. A reading near -2 V indicates a shorted probe or cable, while a reading near -24 V indicates an open circuit or broken connection.

Q5: What are common causes of erratic or noisy signals?
A: Electrical noise from RFI or EMI can corrupt data. Ensure the probe's coaxial cable has proper grounding at the monitor end only (never ground both ends). Keep probe wiring away from AC power lines and motor drives. Also check for oil, dirt, or rust on the probe tip or target surface.

Q6: What is the maximum cable length for this probe system?
A: The probe total length options range from 0.5 meters to 9.0 meters. The electrical length of the probe plus the extension cable must equal the electrical length of the Proximitor for proper operation.

Q7: Does this probe require calibration?
A: No. A key feature of the 3300 XL system is complete interchangeability, which eliminates the need to bench calibrate or match individual probes, extension cables, and Proximitor sensors.

Recommended Models & Related Products

The 330102-00-20-10-02-00 is part of the broader 3300 XL 8 mm Proximity Probe family. Below are related models for different configurations:

Choosing the Right Model

• For standard 3/8-24 UNF thread applications: The 330102 series (with armor) is the correct choice for imperial thread mounting.

• For metric M10 × 1 thread applications: The 330103 (without armor) or 330104 (with armor) series is recommended.

• For applications requiring no armor: The 330101 series provides the same sensing capability without the protective armor.