FAQ

Q1. What does a proximity probe do?
A proximity probe is a non‑contact displacement sensor that detects the distance between the probe tip and a rotating or reciprocating metal target (e.g., a shaft). It produces electrical signals that represent vibration and position, which are essential for condition monitoring and

machinery protection systems.

Q2. Why is it called “3300 XL”?
“3300 XL” is Bently Nevada’s transducer series designation indicating extended performance and interchangeability

 features within the 3300 family — enabling consistent measurement precision across probes,

extension cables, and sensor modules.

Q3. What does “8 mm” refer to?
The “8 mm” refers to the diameter of the probe tip housing, a common size in the 3300 XL series that

balances robustness, sensitivity, and compatibility with standard industrial

 monitoring installations.