FAQ

1. What is this device used for?

It’s an eddy‑current proximity probe designed for non‑contact measurement of shaft vibration, displacement, and position in rotating machinery monitoring systems

(e.g., turbines, compressors, pumps). It pairs with 3300 XL extension cables and Proximitor sensors as part of a

complete measurement system.

2. What does the part number mean?

The suffix in the part number typically designates configuration options:

• 330103 – 3300 XL 8 mm probe family.
• 00 – Unthreaded length of 0 mm.
• 04 – Case length variant (e.g., 40 mm).
• 10 – Integral cable length of 1.0 m.
• 02 – Miniature coaxial ClickLoc connector with standard cable.
• 05 – Agency approvals (e.g., hazardous area certifications).
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3. What measurement range and output does it support?

These 8 mm proximity probes measure radial displacement in the range of approximately 0.25 mm to 2.3 mm (10 – 90 mils), with

 a recommended gap of 1.27 mm (50 mils) for calibration around –9 Vdc output.