Overview
Suffix Breakdown & Model Matrix
The model number 330903-02-16-05-02-00 identifies a fixed 3300 NSv proximity probe configuration. The available configuration details are:
| Code | Specification |
|---|---|
| 330903 | 3300 NSv 5 mm Proximity Probe |
| -02 | 20 mm unthreaded length |
| -16 | 160 mm case length |
| -05 | 0.5 m integral cable length |
| -02 | Miniature coaxial ClickLoc connector |
| -00 | No agency approval option |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330903-02-16-05-02-00 |
| Brand | Bently Nevada |
| Product Series | 3300 NSv Proximity Probe |
| Origin | USA |
| Weight | 0.14 kg (typical) |
| Dimensions | 5 mm probe diameter; 160 mm case length; 20 mm unthreaded length |
| Operating Temp | -52 deg C to +177 deg C |
| Power Consumption | Supplied by compatible 3300 NSv Proximitor Sensor |
| Sensor Type | Eddy-current proximity probe |
| Measurement Type | Non-contact displacement measurement |
| Probe Diameter | 5 mm |
| Integral Cable Length | 0.5 m |
| Connector Type | Miniature coaxial ClickLoc connector |
| Measurement Range | 0.25 to 1.75 mm |
| Scale Factor | 7.87 V/mm nominal |
| Output Signal | Approximately -1 to -13 VDC |
| Frequency Response | 0 to 10 kHz |
| Accuracy | +/- 0.06 mm best fit straight line |
| Target Material | Conductive metal shaft surface |
Eddy-Current Probe Scaling and Rotor Dynamics
The 3300 NSv system uses eddy-current probe scaling to convert shaft-to-probe distance variation into proportional voltage output. The 330903-02-16-05-02-00 probe operates with a compatible Proximitor Sensor to maintain the calibrated relationship between gap voltage and displacement.
The system configuration uses a nominal -10 VDC target gap reference for probe installation validation. Correct mechanical positioning establishes the required electrical operating point for rotor dynamics monitoring, including radial vibration, axial position measurement, and shaft motion analysis.
The 5 mm sensing tip design supports installations where probe clearance is limited and where smaller target surfaces require reduced probe geometry.
Frequently Asked Questions
Q: What type of signal does the 330903-02-16-05-02-00 generate?
A: The probe provides an eddy-current displacement signal through a compatible 3300 NSv Proximitor Sensor. The output represents the distance variation between the probe tip and conductive shaft target.
Q: Can the probe operate as a standalone measurement device?
A: No. The 330903-02-16-05-02-00 requires a compatible 3300 NSv Proximitor Sensor to provide excitation, signal conditioning, and voltage conversion.
Q: What installation factors affect measurement accuracy?
A: Probe gap setting, target material condition, cable routing, shielding integrity, and correct mechanical alignment affect signal stability and measurement accuracy.
Field Installation Guidelines
- Install the probe with the sensing tip aligned toward the conductive shaft target surface.
- Adjust the mechanical gap according to the compatible 3300 NSv Proximitor Sensor calibration requirements.
- Maintain proper cable routing practices and avoid installation paths with excessive electromagnetic interference.
- Connect the miniature coaxial ClickLoc connector securely to maintain signal integrity.
- Ensure cable shielding and grounding follow the machinery monitoring system installation requirements.
- Verify the probe gap voltage before commissioning to confirm correct operating range.
- Avoid mechanical damage to the probe tip and integral cable during installation.
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