Technical Specifications Breakdown
Key parameters for the 31000-28-10-00-087-03-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Probe Type | 3300 XL 8 mm probe, multiple approvals |
| Probe Cable Length | 1.0 m (39 in) |
| Standoff Adapter | None |
| Probe Penetration | 8.7 in |
| Fittings | Two plugs, one 3/4-14 NPT fitting, one 3/4-14 to 1/2-14 NPT SST reducer, one cable seal grip with grommets |
| Mounting Thread | 3/4-14 NPT |
| Protection Rating | Type 4X (CSA certified), IP66 (verified per SC115582-1 (e) 106) |
| Housing Material | Glass-reinforced PPS thermoplastic with conductive fibers |
| Sleeve Material | AISI 304 stainless steel |
| Outer Sleeve & Exterior Screws | AISI 303 stainless steel |
| O-Ring Material | Neoprene |
| Temperature Rating | -51°C to +105°C (-60°F to +221°F) |
| Weight | 1.2 kg (2.6 lb) typical |
Industry Applications
The Type 4X and IP66 ratings make it suitable for outdoor installations exposed to hose-directed water and corrosive atmospheres. The BASEEFA-certified impact strength ensures the assembly can endure mechanical shocks in hazardous areas.

Installation & Setup Guidance
When installing the 31000-28-10-00-087-03-02, ensure the mounting thread (3/4-14 NPT) is properly engaged. The recommended torque for the retaining nut is 29.4 N·m (260 in·lb). Use the provided cable seal grip with the appropriate grommet for your cable diameter (1/8 to 3/8 inches). The assembly is not designed to resist internal or external pressure; do not pressurize the housing. Verify that the grounding liner is installed and the cover is fastened securely.
Maintenance & Reliability
Periodically inspect the housing for signs of physical damage or environmental degradation. Check the Neoprene O-ring for cracks or compression set. The stainless steel sleeve and screws require minimal maintenance in most environments. Always verify that the cable seal grip remains tight to maintain the IP66 seal. For applications with extreme temperature cycling, monitor the O-ring condition more frequently.
Robust Protection for Critical Vibration Monitoring
When selecting a proximity probe housing for your turbomachinery protection system, environmental resilience and mechanical integrity are paramount. The Bently Nevada 31000-28-10-00-087-03-02 offers a proven solution designed to withstand demanding conditions while maintaining reliable sensor positioning.
This assembly is built around a glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic housing containing conductive fibers for electrostatic dissipation. The outer sleeve and exterior screws are constructed from AISI 303 stainless steel, while the sleeve material and retaining chain use AISI 304 stainless steel for corrosion resistance. A Neoprene O-ring provides the primary seal between the sleeve and housing.

Selection Guide & Purchasing Advice
When selecting a replacement or new assembly, confirm that the probe penetration (8.7 in) and cable length (1.0 m) match your installation requirements. The 3/4-14 NPT mounting thread is standard for many Bently Nevada proximity probe installations. AutoDCSTech stocks this exact configuration to support your maintenance needs. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 31000-28-10-00-087-03-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
