Product Overview

The Bently Nevada 21500-00-12-10-02 serves as a high-precision 3300 XL 8mm Proximity Probe designed for non-contact measurement of shaft vibration and axial position. Utilizing eddy current technology, this probe translates the physical gap between its tip and the target shaft into a high-fidelity electronic signal. As a vital component of the 3500 Machinery Protection System, it enables the detection of mechanical anomalies in turbines, compressors, and pumps, preventing catastrophic equipment failure through real-time condition monitoring.

Part Number Breakdown: 21500-AA-BB-CC-DD

The Bently Nevada 21500 series uses a specific nomenclature to define mechanical dimensions and cable protection:

• 21500-00 (Unthreaded Length): 0 mm.

• -12 (Overall Case Length/Thread): Indicates M10 x 1 metric threading with a 120 mm case length.

• -10 (Total Cable Length): Specifies a 1.2 meter (approx. 3.9 feet) cable length.

• -02 (Cable Sleeve): Includes a 1.0 meter protective armor/sleeve covering the majority of the cable length.

Technical Specifications

The 21500-00-12-10-02 provides linear performance across a wide industrial temperature range.

Engineering Advantages

• Integrated Mechanical Protection: The 1.0-meter cable sleeve (Option -02) protects the sensitive coaxial cable from physical abrasion, sharp metal edges, and chemical exposure within the machine casing. This ensures signal integrity in high-vibration environments.

• Exceptional Thermal Stability: The probe tip utilizes Polyphenylene Sulfide (PPS), a high-performance thermoplastic that resists signal "drift" in extreme temperatures. The probe maintains accuracy from –35 °C up to +180 °C, suitable for high-pressure steam environments.

• Interchangeability and Calibration: As part of the 3300 XL family, this probe requires no individual calibration when replaced. It matches the standardized 200 mV/mil scale factor, allowing technicians to swap probes without recalibrating the associated Proximitor® sensor.

• Fluid and Pressure Resilience: The probe tip and cable-to-probe seal resist common industrial lubricants and process fluids. The assembly maintains its seal against pressures up to 3.5 bar (50 psi), protecting the internal eddy current coil.

FAQs

Q: Is the 21500-00-12-10-02 probe 100% Brand New?

A: Yes. We supply only 100% Brand New and Original units in their original Bently Nevada factory-sealed packaging. Each unit includes a 12-month factory warranty. A Certificate of Origin (COO) is available upon request.

Q: Can I use this probe with an extension cable?

A: Yes. For a standard 5-meter or 9-meter system, you must connect this 1.2m probe to the appropriate 3300 XL Extension Cable. Ensure the total system length matches the calibration of your Proximitor sensor.

Q: What is the benefit of the M10 x 1 threading?

A: The M10 x 1 metric thread is standard for international industrial machinery. It allows for precise gap adjustments using a jam nut, ensuring the probe tip resides within its optimal linear range during commissioning.

Q: Does this probe work with legacy 7200 Series Proximitors?

A: We do not recommend cross-series mixing. While physically compatible in some cases, the 3300 XL series (21500) offers superior performance and different electrical characteristics than the legacy 7200 series. For the best accuracy, pair this probe with a 3300 XL Proximitor.