Configured for high-precision shaft displacement and vibration measurement in compact mechanical spaces, the Bently Nevada 330905-07-17-05-02-05 (3300 NSv Proximity Probe) provides direct physical execution.
The 330905 series utilizes a structured part numbering system to define mechanical dimensions, cable lengths, connector styles, and agency approvals:
| Parameter | Specification |
|---|---|
| Model | 330905-07-17-05-02-05 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.2 kg |
| Dimensions | M10 x 1 thread, 170 mm overall case length |
| Operating Temp | -40 to 82 deg C |
| Power Consumption | Powered via connected Proximitor Sensor loop (typically -24 VDC system) |
| Linear Range | 0 to 1.5 mm (0 to 60 mils) |
| System Resolution | 0.1 um (0.4 uin) |
| Accuracy | +/- 2% of full range |
| Frequency Response | 2 Hz to 10 kHz |
| Target Material | AISI 4140 steel (standard calibration) |
| Output Signal | High-frequency RF signal driven by Proximitor Sensor / Transducer System |
| Connector Type | Miniature coaxial ClickLoc connector with connector protector |
| Ingress Protection | IP67 |
The 3300 NSv probe operates on the eddy-current principle to measure static and dynamic distances between the probe tip and the target conductive surface. Standard system scaling yields an incremental scale factor (ISF) calibrated against AISI 4140 steel target material. During installation and routine maintenance, accurate gap voltage validation (-10 VDC nominal gap target corresponding to the center of the linear voltage-to-distance transfer curve) must be verified across the probe leads using a calibrated digital multimeter. Ensuring cross-talk suppression requires maintaining adequate physical spacing between adjacent probe tips or utilizing staggered mounting angles when probes are installed in tight bearing housing radial pairs.
Q: What is the primary difference between a standard 3300 XL 8mm probe and the 3300 NSv probe?
A: The 3300 NSv (Narrow Side-view) probe features a smaller tip diameter and tighter RF field pattern designed specifically for fluid-film bearing installations with counterbores or reduced side clearances where a standard 8 mm probe would suffer from side-view cross-talk or structural interference.
Q: How do you ensure proper connector seating and environmental sealing during installation?
A: Ensure the miniature coaxial ClickLoc connector fully snaps into place. When specified with option 02, slide the integrated connector protector over the mated junction to prevent ingress of oil, moisture, and particulate matter into the RF signal path.
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