Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330907-05-30-05-02-CN |
| Brand | Bently Nevada |
| Product Type | 3300 NSv Reverse Mount Proximity Probe |
| Origin | USA |
| Weight | 0.02 kg |
| Dimensions | 1.1 x 0.9 x 62 cm estimated shipping size |
| Operating Temp | -52 deg C to +177 deg C |
| Power Consumption | Operates as part of an eddy-current proximity transducer system; supplied through compatible Proximitor interface |
| Measurement Principle | Eddy-current non-contact displacement sensing |
| Linear Range | 1.5 mm (60 mils) |
| Average Scale Factor | 7.87 V/mm (200 mV/mil) |
| Frequency Response | 0 Hz to 6.0 kHz (+0, -3 dB) |
| Thread Size | M10 x 1 metric thread |
| Unthreaded Length | 50 mm |
| Overall Case Length | 300 mm |
| Integral Cable Length | 0.5 meter |
| Connector Type | Miniature coaxial ClickLoc male connector |
| Cable Type | 75 ohm triaxial FEP insulated cable |
| Case Material | AISI 303 or 304 stainless steel |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Target Material | 4140 steel calibration target |
Eddy-Current Probe Scaling and Rotor Dynamics Measurement
The 330907-05-30-05-02-CN uses an eddy-current sensing element to convert shaft displacement into electrical output signals. Therefore, the probe provides proportional voltage response across its calibrated linear range for vibration and position monitoring.
The narrow side-view construction reduces installation clearance requirements. Additionally, the reverse mount configuration allows engineers to install the probe from internal machine locations where conventional probe mounting arrangements cannot fit.
The probe output depends on correct gap voltage adjustment between the probe tip and the target surface. Bently Nevada proximity systems typically validate operating conditions by checking gap voltage values, with -10 VDC commonly used as a reference target during system setup. Proper scaling supports rotor dynamics analysis, including shaft vibration trends, axial position changes, and mechanical movement detection.
Frequently Asked Questions
Q: What measurement technology does the 330907-05-30-05-02-CN use?
A: The probe uses an eddy-current measurement principle to detect shaft displacement without mechanical contact with the rotating target.
Q: Can the 330907-05-30-05-02-CN replace a standard 8 mm probe in all applications?
A: No. The 3300 NSv probe uses a narrow side-view design for specific installation conditions. Application compatibility depends on mounting dimensions, target material, and system calibration requirements.
Q: What installation factors affect measurement accuracy?
A: Probe gap setting, target surface condition, cable routing, connector protection, and correct Proximitor system calibration affect measurement performance.
Field Installation Guidelines
Install the 330907-05-30-05-02-CN according to the approved mechanical drawing and mounting requirements of the monitoring system.
Maintain correct probe clearance from the rotating target surface before commissioning. Verify the probe gap voltage through the connected Proximitor interface and confirm the signal output matches the expected calibration range.
Route the triaxial cable away from high-current power conductors and electromagnetic interference sources. Connect cable shielding according to the system grounding specification to reduce electrical noise.
Protect the ClickLoc connector from contamination and mechanical stress during installation. Confirm the M10 x 1 mounting thread engagement provides stable mechanical fixation before machine operation.
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