
Bently Nevada 21504-000-016-10-02 Proximity Probe
The Bently Nevada 21504-000-016-10-02 Proximity Probe is a high-precision device engineered to measure the position, vibration, and displacement of rotating and reciprocating machinery. Designed for demanding industrial environments, this proximity probe ensures accurate data collection for reliable machinery monitoring and protection.
Product Attributes

Unthreaded Length: 0.0 inches
Overall case length: 0.8 inches
Total length: 1.0 metre. Tolerance : +.25 metre, -.10 metre.
Connector: With miniature male coaxial connector.
Diameter: 8mm
Configurations type and thread: Standard, 3/8-24
Lead Armor: No
Input power : -17.5 Vdc to -26 Vdc at 12 mA Max consumption.
Output calibrated range: 80mils (2.0 mm). Begins at approximately 10 mils (0.25 mm) from the probe face.
The 21504-000-016-10-02 Proximity Probe is easy to install, thanks to its standardized dimensions and compatibility with various mounting options. The 10-foot cable length allows flexible positioning, and the straightforward connection system minimizes setup time. Once installed, the probe can be calibrated to ensure it provides the most accurate measurements for your specific application.
Functional Description
21504-000-016-10-02 is a 3300 XL 8 mm Reverse Mount Probe manufactured by Bently Nevada and used in Proximity Transducer System. The Proximity Transducer System and Sensors of the 3300 XL series work with replaceable probes of different lengths, armor, and connectors made by Bently Nevada.
The Bently Nevada 7200 5mm / 8mm Series Proximity Transducer Systems are non-contacting, gap-to-voltage transducer systems that measure static and dynamic distances between the probe tip and the observed object. The general application is in any situation where an accurate, noncontact displacement measurement is required.
However, the most prevalent application is for shaft position and vibration measurements on rotating and reciprocating machinery.
They are intended for use with nearly any machine type, including gas and steam turbines, compressors, pumps, centrifuges, electric motors, and generators. The system has an 80 mil (2mm) linear measuring range and is API 670 compliant.
Frequently Asked Questions
Q: What is the primary purpose of this proximity probe?
A: The Bently Nevada 21504-000-016-10-02 is used to measure vibration, displacement, and position of rotating machinery in a non-contact manner.
Q: Is this probe compatible with older Bently Nevada systems?
A: Yes, it is backward-compatible with most Bently Nevada vibration monitoring systems, ensuring seamless integration.
Q: What type of environments can this probe operate in?
A: It is designed to function reliably in harsh conditions, including exposure to high temperatures, chemicals, and mechanical vibrations.
Q: How accurate is the measurement?
A: The probe offers high precision with a typical measurement error of less than 1%, depending on installation and calibration.
Your Satisfaction, Our Priority
- Quality Assurance: All our products are 100% authentic and rigorously inspected to ensure top quality.
- 12-Month Warranty: We stand behind our products with a 12-month warranty against defects.
- Shipping and handling fees are non-refundable. Customers are responsible for any costs associated with unreasonable returns and reshipping. Returned items must be in resalable condition, and damage due to misuse or accidents is not covered. Thank you for your understanding and cooperation!
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