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Bently Nevada 21000-34-05-15-29-04-02 High-Speed Communication Interface
Description
The Bently Nevada 21000-34-05-15-29-04-02, also cataloged as the 21000 High-Speed Communication Interface, operates as a dedicated hardware component for mechanical environmental housing within turbine supervisory instrument systems.
Suffix Breakdown & Model Matrix
| Suffix Position | Code | Description |
|---|---|---|
| Housing Option | 34 | Standard housing with M25 threads |
| Mounting Thread Option | 05 | 3/8-24 mounting thread |
| Probe Penetration Option | 15 | 1.5 inches penetration depth |
| Standoff Adapter Option | 29 | 2.9 inches total length |
| Conduit Fitting Option | 04 | 3/4-14 NPT conduit fitting |
| Agency Approval Option | 02 | CSA hazardous area approval |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 21000-34-05-15-29-04-02 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.06 kg |
| Dimensions | 1.8 x 1.6 x 123 cm |
| Operating Temp | -40 deg C to +85 deg C |
| Power Consumption | 0 W (Passive mechanical assembly) |
| Housing Material | Cast aluminum alloy |
| Conduit Connection | 3/4-14 NPT threaded entry |
| Environmental Rating | Weatherproof and explosion-proof certified |
Rotor Dynamics and Gap Voltage Validation
The 21000-34-05-15-29-04-02 assembly secures eddy-current transducers in fixed alignment relative to rotating machinery shafts to ensure proper rotor dynamics tracking. Correct physical positioning prevents mechanical drift that would otherwise disrupt eddy-current probe scaling coefficients. During static commissioning phases, technicians must verify gap voltage validation targets at -10 VDC to confirm linear operational response. The heavy-duty metallic enclosure provides critical cross-talk suppression by shielding internal signal leads from external electromagnetic interference generated by nearby motor drives and power wiring.
Frequently Asked Questions
Q: Does this housing module support active digital signal processing or routing?
A: No. The unit serves purely as an explosion-proof mechanical enclosure and mounting interface for proximity probes and extension cables.
Q: What thread engagement standard is required for the conduit ports?
A: The conduit entries utilize standard 3/4-14 NPT threads requiring proper thread sealant compound and a minimum engagement of 5 full threads.
Q: How does the housing impact gap voltage calibration?
A: The grounded aluminum structure isolates internal components from ambient electrical noise, stabilizing the baseline -10 VDC output signal.
Field Installation Guidelines
Mount the housing assembly directly to rigid machine casing brackets to eliminate structural vibration artifacts. Route all sensor signal cables through isolated metallic conduit separate from high-voltage power lines. Verify that the internal O-ring seal is undamaged and properly seated in the groove before tightening the cover to maintain environmental protection. Ensure all grounding straps are securely fastened to verified earth ground terminals.
Additional information
| Weight | 0.06 kg |
|---|---|
| Country of Origin | USA |
| Dimension | 1.8 x 1.6 x 123cm |
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