Technical Specifications Breakdown
Key parameters for the 21000-16-05-15-093-03-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 21000 Proximity Probe Housing Assembly |
| Probe Option | 16 (3300 XL 8 mm probe with connector) |
| Probe Cable Length | 0.5 m (20 in) |
| Standoff Adapter | 1.5 in (38 mm) |
| Probe Penetration (Option D) | 9.3 in (093) |
| Mounting Thread | 3/4-14 NPT |
| Fittings | One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, cable seal grip with grommets |
| Material | Aluminum body with 304 stainless steel sleeve |
| Weight | 1.1 kg (2.4 lb) typical, without fittings |
| Hazardous Area Approval | CSA Class 1 Divisions 1&2 Groups C,D; Class 2 Divisions 1&2 Groups E,F,G; Class III; Enclosure Type 4; T5 @ Ta -50°C to +40°C; T4 @ Ta -50°C to +80°C |
Industry Applications for Reliable Vibration Monitoring
The CSA explosion-proof certification (Class 1 Division 1 Groups C and D) allows direct mounting in hazardous areas, eliminating the need for purged enclosures. The 3300 XL 8 mm probe provides high linearity for shaft relative vibration and position measurements, supporting predictive maintenance programs that reduce unplanned downtime.

Installation and Setup Guidance
When installing the 21000-16-05-15-093-03-02, ensure the mounting thread (3/4-14 NPT) is properly sealed with the provided thread seal. For probe penetration lengths between 1.0 and 2.0 inches, counter boring the machine case may be necessary to reduce side view or rear view effects. If the total probe penetration (C plus D) exceeds 300 mm (12 in), sleeve support near the probe is required to prevent resonance. The adjustment range for option D is 13 mm (±0.5 in).
Maintenance and Reliability
The aluminum body with 304 stainless steel sleeve offers corrosion resistance in harsh environments. Periodically inspect the O-rings and cable seal grip grommets for wear. The housing is rated CSA Type 4, providing protection against dust and water ingress. For intrinsically safe applications, use approved proximity probes with this housing.
Protecting Critical Machinery in Hazardous Environments
In rotating machinery monitoring, sensor mounting directly impacts data reliability. The Bently Nevada 21000-16-05-15-093-03-02 proximity probe housing assembly addresses this challenge by providing a robust, explosion-proof enclosure for precise shaft vibration and position measurements. Designed for use with the 3300 XL 8 mm probe, this assembly ensures consistent performance in the most demanding industrial settings.

Compatibility and Integration
This assembly is fully compliant with the American Petroleum Institute's API 670 Standard for externally mounted proximity probe housings. It is designed for use with Bently Nevada 3300 XL 8 mm proximity probes and compatible monitors. The housing includes a dome cover, threaded conduit ports, and optional standoff adapter for flexible installation.
Selection Guide and Purchasing Advice
When selecting a proximity probe housing, verify the probe cable length and standoff adapter match your machine geometry. The 21000-16-05-15-093-03-02 includes a 0.5 m cable and 1.5 in standoff, suitable for many standard applications. 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 | 21000-16-05-15-093-03-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
