The Bently Nevada 330103-08-13-10-02-05, also cataloged as the 330103 Proximity Probe, operates as a dedicated hardware component for proximity and vibration sensing within 3300 XL machinery monitoring platforms. The hardware executing the physical displacement verification translates mechanical rotor dynamics into proportional voltage deviations via high-frequency eddy-current probe scaling circuits.
| Suffix Code | Option Description | Technical Parameter |
|---|---|---|
| 330103 | Base Model | 3300 XL 8 mm Proximity Probe |
| -08 | Unthreaded Length Option | 80 mm |
| -13 | Overall Case Length Option | 130 mm |
| -10 | Total Length Option | 1.0 meter (3.3 feet) |
| -02 | Connector and Cable Type Option | Miniature coaxial ClickLoc connector, 75 Ohm FluidLoc coaxial cable |
| -05 | Agency Approval Option | Multiple global hazardous area approvals (ATEX/IECEx/CSA standard) |
| Parameter | Specification |
|---|---|
| Model | 330103-08-13-10-02-05 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.1 kg |
| Dimensions | 8.0 mm probe tip diameter, 130 mm case length |
| Operating Temp | -51 deg C to +177 deg C nominal parameters |
| Power Consumption | Passive component driven via external Proximitor Sensor loop |
| Impedance | 75 Ohm nominal (coaxial cable) |
| Cable Structure | FluidLoc moisture-resistant configuration |
Physical deployment of this 8 mm sensor requires meticulous gap voltage validation to map structural movements accurately within the linear calibration window. During static mechanical calibration, the physical gap must be adjusted until the circuit output tracks a -10 VDC target, anchoring the system at its linear midpoint. This baseline voltage optimization ensures the eddy-current probe scaling correctly interprets high-velocity rotor dynamics, avoiding signal degradation or saturation during peak operational vibration cycles.
Q: Does this passive proximity probe assembly support field-swapping without full loop re-calibration?
A: Yes. The 3300 XL 8 mm series probes feature matched internal electrical properties, allowing direct component interchangeability without requiring manual field calibration of the associated Proximitor.
Q: What are the continuous performance risks if the total electrical length deviates from the 1.0-meter specification?
A: Splicing or modifying the physical cable length alters total loop inductance and capacitance. This directly distorts the eddy-current tuning calibration, causing scaling errors and shifting the nominal -10 VDC baseline position.
Mount the probe thread body directly into a heavy-duty bracket to isolate the internal assembly from secondary structural resonance. Ensure adequate physical clearance is maintained between the 8.0 mm tip and surrounding conductive metals to prevent unintended peripheral eddy-current interaction. Thread the assembly into the port until the dynamic gap voltage stabilizes at precisely -10 VDC on a calibrated digital voltmeter. Secure the outer locknuts to standard engineering torque limits to eliminate drift caused by operational thermal expansion. Keep the ClickLoc coaxial connection interface clean and dry within a sealed conduit box.
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