Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330910-07-23-10-02-00 |
| Brand | Bently Nevada |
| Series | 3300 NSv Series |
| Product Type | Proximity Sensors |
| Origin | USA |
| Dimensions | 0.7 in unthreaded length; 2.3 in overall case length |
| Thread Type | M10 x 1 metric thread |
| Cable Length | 1.0 m (3.3 ft) |
| Connector Type | Miniature coaxial ClickLoc male connector |
| Armored Cable | No |
| Linear Range | 1.5 mm (60 mils) |
| Nominal Scale Factor | 7.87 V/mm (200 mV/mil) |
| Target Material | AISI 4140 steel |
| Operating Temp | -51 deg C to +177 deg C |
| Power Consumption | Supplied by compatible 3300 NSv Proximitor Sensor; probe passive element |
| Mounting Torque | Recommended 5.1 N m; maximum 33.9 N m |
| Target Size Requirement | Shaft diameter less than 51 mm (2 in) or axial target less than 15 mm (0.6 in) |
Eddy-Current Probe Scaling and Rotor Dynamics Measurement
The 3300 NSv proximity probe uses eddy-current sensing technology to convert shaft displacement into an electrical output signal. The probe maintains a nominal scale factor of 200 mV/mil, which allows the connected Proximitor Sensor to process radial vibration and axial position signals.
In addition, the compact probe geometry supports rotor dynamics monitoring where installation clearance limits standard 3300 XL probe dimensions. The narrow side-view design reduces mechanical interference around small-diameter shafts while maintaining displacement measurement characteristics.
The probe system requires proper gap voltage validation during commissioning. Field technicians typically verify the probe gap condition against the -10 VDC target used by Bently Nevada eddy-current systems to confirm correct measurement range and signal stability.
Frequently Asked Questions
Q: Can the 330910-07-23-10-02-00 measure both vibration and axial position?
A: Yes. The probe supports non-contact displacement measurement for radial vibration and axial position monitoring when connected to a compatible Bently Nevada Proximitor Sensor.
Q: Does this probe require an armored cable configuration?
A: No. The 330910-07-23-10-02-00 configuration uses a standard unarmored cable with a miniature coaxial ClickLoc connector.
Q: What installation factors affect measurement accuracy?
A: Proper probe gap setting, target material condition, cable routing, and electrical shielding practices affect measurement signal quality.
Field Installation Guidelines
Install the probe with the M10 x 1 threaded mounting interface fully engaged and mechanically secured according to site procedures. Avoid excessive tightening force because it can damage the probe housing or threaded section.
Route the coaxial cable away from high-current power conductors and switching sources to reduce electrical interference. Maintain proper cable support and avoid sharp bending near the ClickLoc connector.
During commissioning, verify the probe output, gap voltage, and signal polarity through the connected monitoring system. Confirm that the probe tip faces the correct target surface and that the target material matches the specified calibration material.
For TSI applications, validate the eddy-current measurement circuit before placing the machine into service. Check rotor movement direction, vibration channel scaling, and axial position reference values within the monitoring configuration.
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