FAQ

What does the probe measure? Static gap, vibration, dynamic displacement?

Yes — like other eddy‑current proximity probes, when paired with correct signal conditioner, it measures:

• Static shaft / rotor position (gap / clearance)

• Radial shaft vibration or displacement (dynamic motion)

• If configured properly (target wheel or key‑way), and using suitable monitor, possibly speed / Keyphasor / phase‑reference signals.

What do I need to use it properly (besides the probe)?

You need:

• A compatible extension cable + connector (matching electrical length) — NSv probes use 75 Ω coaxial cables with ClickLoc connectors. 

• A Proximitor (signal conditioner) + monitoring module / monitor designed for 3300‑series probes — the raw eddy‑current signal from the probe must be conditioned to provide a usable output (voltage, displacement, vibration amplitude, etc.). 

• Proper installation: correct mounting (M8 × 1 thread), correct gap to the conductive target, correct connector torque, good cable routing, shielding / grounding as required.

What are the probe’s expected limitations or constraints?

• Because 330903 variant is narrow side‑view, it has a smaller thread and body than older / full-size 3300 probes — may not be suitable for large-diameter shafts or where heavy mechanical loads / impacts are expected.

• The linear measurement range is limited (e.g., ~0.25–1.75 mm) — ensure your application’s required gap/clearance is within that range for accurate linear output. 

• The suffix “17‑19‑…” is nonstandard — there may be non‑documented mechanical or electrical differences (e.g. altered case length, cable length, connector type, internal wiring), which could impact mounting, wiring, compatibility — therefore you must verify with vendor / manufacturer.

• As with any eddy‑current proximity probe: measurement assumes a conductive metallic target (shaft, rotor). Using non‑standard materials or unusual target geometry may degrade accuracy or linearity.

• The NSv “narrow” design trades off robustness compared to older full‑size armored probes — if the application involves high mechanical risk (impact, heavy vibration, potential contact), consider if a more rugged (armored) probe is more appropriate.