Technical Specifications Breakdown
Key parameters for the 21000-28-10-30-065-04-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 21000 Proximity Probe Housing Assemblies |
| Probe Option | 28 3300 XL 8 mm probe, selectable hazardous area approvals |
| Probe Cable Length | 10 1.0 m (39 in) |
| Standoff Adapter | 30 = 3 in |
| Probe Penetration | 065 = 6.5 in |
| Fitting Option | 04 One 3/4-14 NPT plug only |
| Mounting Thread Option | 02 3/4-14 NPT |
| Material | Aluminum body with 304 stainless steel sleeve |
| Weight | 1.1 kg (2.4 lb) typical, without fittings |
Industry Applications for Reliable Vibration Monitoring
This housing assembly is engineered for use in critical rotating machinery such as compressors, turbines, and pumps across oil & gas, power generation, and petrochemical facilities. The CSA Type 4 enclosure rating and explosion-proof certification make it suitable for Class I Divisions 1 and 2 Groups C and D, as well as Class II Divisions 1 and 2 Groups E, F, and G areas. By securely housing the 3300 XL 8 mm probe, it ensures accurate shaft displacement and vibration measurements, directly supporting API 670 compliance for externally mounted proximity probes.

Installation & Setup Guidance
When installing the 21000-28-10-30-065-04-02, ensure the mounting thread (3/4-14 NPT) is properly sealed using the provided thread seal. The standoff adapter length of 3 in and probe penetration of 6.5 in must be matched to the machine's casing dimensions. For hazardous area installations, connect the circuit per drawing 140979 to maintain non-incendive operation. Always verify that the probe cable length (1.0 m) allows proper routing without sharp bends.
Maintenance & Reliability
Periodic inspection of the housing assembly is recommended to check for corrosion or mechanical damage, especially in harsh environments. The aluminum body with 304 stainless steel sleeve offers good corrosion resistance. Ensure O-rings are intact during reassembly to maintain the Type 4 enclosure seal. No internal disassembly is required for routine checks.

Compatibility & Integration
This housing is designed specifically for Bently Nevada 3300 XL 8 mm proximity probes with selectable hazardous area approvals. The 3/4-14 NPT conduit fitting allows direct connection to standard industrial conduit systems.
Selection Guide & Purchasing Advice
When ordering the 21000-28-10-30-065-04-02, verify that the suffix codes match your application requirements: probe cable length, standoff adapter, probe penetration, fitting, and mounting thread. AutoDCSTech stocks this assembly as new and original in factory packing with a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 21000-28-10-30-065-04-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
