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Bently Nevada 330881-28-09-123-03-02 Proximity Transducer
Description
The Bently Nevada 330881-28-09-123-03-02, also cataloged as the 330881 PROXPAC XL Proximity Transducer, operates as a dedicated hardware component for non-contacting vibration and position measurement within Turbomachinery Supervision Instrumentation (TSI) platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330881-28-09-123-03-02 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 1.4 kg |
| Dimensions | 32.02 x 12 x 9.14 cm |
| Operating Temp | Per 3300 XL system standard |
| Power Consumption | Per 3300 XL system standard |
Mechanical Monitoring and TSI Integration
The PROXPAC XL system utilizes eddy-current probe technology to monitor rotor dynamics. Proper operation requires consistent gap voltage validation, with a target of -10 VDC at the specified mid-range position. Users must ensure accurate eddy-current probe scaling during calibration to maintain linearity across the measurement range. The system architecture includes integrated cross-talk suppression circuitry to maintain signal integrity in multi-channel installations, protecting against electromagnetic interference in high-density rack configurations.
Frequently Asked Questions
Q: What are the requirements for gap voltage verification during initial startup?
A: The probe must be positioned within the linear range of the target, typically adjusted to achieve a -10 VDC output. Confirm the target material matches the probe calibration curve.
Q: Can this transducer be replaced while the system is powered?
A: While the 3300 XL components support hot-swap capabilities in rack-mounted configurations, ensure the termination points are isolated to prevent transient voltage spikes on the signal loop.
Field Installation Guidelines
- Verify that the probe tip distance is set according to the nominal gap specified in the machine commissioning manual.
- Ensure that all coaxial cable connections are torqued to manufacturer specifications to prevent signal attenuation or intermittent contact.
- Maintain proper cable routing distance from high-voltage AC lines to minimize induced noise on the low-level signal path.
- Confirm that the probe mounting bracket is rigid to avoid resonance which could lead to false vibration readings.
- Check the ground continuity of the cable shield at the terminal block to ensure effective EMI/RFI shielding.
Additional information
| Weight | 1.4 kg |
|---|---|
| Country of Origin | USA |
| Dimension | 32.02 x 12 x 9.14cm |
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