Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330171-00-20-10-02-00 |
| Brand | Bently Nevada |
| Product Type | 3300 5 mm Proximity Probe |
| Origin | USA |
| Weight | Approx. 0.255 kg |
| Dimensions | 2.0 in overall case length |
| Operating Temp | -35 deg C to +177 deg C |
| Power Consumption | Passive probe design, powered through compatible Proximitor Sensor |
| Measurement Principle | Eddy-current displacement sensing |
| Probe Diameter | 5 mm |
| Thread Size | 1/4-28 UNF |
| Probe Length | 1.0 m (3.3 ft) |
| Unthreaded Length | 0.0 in |
| Connector Type | Miniature coaxial ClickLoc connector |
| Cable Type | 75 ohm triaxial cable |
| Armor Option | Without armor |
| Probe Material | PPS tip with stainless steel housing |
| Sensitivity | 10 mV/mil typical |
Eddy-Current Probe Scaling and Rotor Dynamics Measurement
The Bently Nevada 330171 series uses eddy-current probe scaling to convert shaft-to-probe distance changes into electrical displacement signals. Therefore, the probe provides non-contact measurement of radial and axial shaft movement when connected with a compatible Proximitor Sensor.
In addition, the probe system supports gap voltage validation functions, where installation personnel verify probe operating position against calibrated gap voltage targets. This configuration allows monitoring systems to evaluate rotor dynamics behavior, shaft vibration trends, and displacement changes during machine operation.
The miniature coaxial ClickLoc connector maintains signal transmission integrity between the probe and extension cable assembly. Moreover, the 3300 system architecture applies calibrated probe characteristics to reduce measurement errors caused by installation conditions and signal interference.
Frequently Asked Questions
Q: What signal type does the 330171-00-20-10-02-00 generate?
A: The probe provides an eddy-current displacement signal through a compatible Proximitor Sensor, which converts shaft position changes into monitoring system input signals.
Q: Does the probe require direct electrical power connection?
A: No. The probe receives excitation from the connected Proximitor Sensor through the extension cable assembly.
Q: What installation verification is required after mounting the probe?
A: Technicians should verify probe gap position, connector engagement, cable routing, and gap voltage response according to the connected monitoring system requirements.
Field Installation Guidelines
- Install the probe using the specified 1/4-28 UNF mounting thread and maintain proper mechanical alignment with the monitored shaft surface.
- Adjust the probe gap according to the calibration requirements of the connected Bently Nevada Proximitor Sensor.
- Route the triaxial cable away from high-current conductors and sources of electromagnetic interference.
- Confirm that the ClickLoc connector is fully engaged before system commissioning.
- Verify the gap voltage output during startup checks to confirm correct probe positioning.
- Maintain proper cable support to prevent mechanical stress on the probe connection area.
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