Configured for physical displacement verification in 3300 or 3500 Machinery Monitoring Systems, the Bently Nevada 330103-00-12-10-02-00 (330103 Proximity Probe) provides direct physical/electrical execution. The instrument transforms mechanical target movements into proportional voltage deviations via high-frequency electromagnetic field modifications without physical contact.
| Suffix Code | Option Description | Technical Parameter |
|---|---|---|
| 330103 | Base Model | 8 mm Proximity Probe |
| -00 | Unthreaded Length Option | 0 mm |
| -12 | Overall Case Length Option | 120 mm |
| -10 | Total Length Option | 1.0 metre (3.3 feet) |
| -02 | Connector and Cable Type Option | Miniature coaxial ClickLoc connector, standard cable |
| -00 | Agency Approval Option | Not required |
| Parameter | Specification |
|---|---|
| Model | 330103-00-12-10-02-00 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.12 kg nominal |
| Dimensions | 8 mm tip diameter, 120 mm total case length |
| Operating Temp | -51 deg C to +177 deg C |
| Power Consumption | Passive component supplied via Proximitor Sensor loop |
| Nominal Scale Factor | 7.87 V/mm (200 mV/mil) when combined with standard target |
| Connector Type | Coaxial ClickLoc interlocking mechanism |
The installation matrix requires precise gap voltage validation to anchor the sensor within its linear calibration spectrum. The nominal calibration target demands a -10 VDC baseline at the midpoint of the physical stroke, representing the optimal static distance between the 8 mm probe tip and the rotating shaft. Proper calibration parameters preserve loop linearity across rapid rotor dynamics transitions, preventing measurement saturation during high-amplitude vibration events or sudden thrust position shifts.
Q: What is the technical risk of mixing a 1.0 metre probe with a 5.0 metre Proximitor without an extension cable?
A: The system requires a matched electrical length of either 5.0 or 9.0 metres. Incorrect length configuration de-calibrates the eddy-current tuning loop, shifting the scale factor and nullifying the calibration validity.
Q: How does mechanical cross-talk occur between adjacent probe installations?
A: If two 8 mm probe tips are mounted below the minimum required physical distance, their high-frequency electromagnetic fields overlap, generating signal modulation anomalies and false vibration harmonics.
Mount the probe into a rigid bracket to eliminate structural vibration frequencies from corrupting the raw signal. Ensure the target material matches AISI 4140 steel unless the Proximitor sensor has been adjusted for an alternative alloy specification. Adjust the mechanical position until the monitoring rack displays a gap voltage of -10 VDC. Tighten the locknuts to the standard torque rating to prevent drifting under operational thermal expansion. Protect the miniature coaxial ClickLoc connector from moisture, oil, and atmospheric debris using appropriate terminal enclosures or insulating sleeves.
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