Description
Bently Nevada Long-Reach Probe Housing: 8.5″ Penetration Solution
Extended Reach Design
Hazardous-area housing with deep 8.5 inch probe penetration. Includes 8mm reverse-mount probe and explosion-proof enclosure. API 670 compliant.
Model Number Breakdown
| Code Segment | Configuration |
| 21000 | Housing base model |
| 16 | 8mm probe with connector |
| 05 | 0.5m (20″) cable |
| 15 | 1.5″ standoff adapter |
| 085 | 8.5″ probe penetration |
| 03 | NPT plug + reducer + seal kit |
| 02 | 3/4-14 NPT mounting |
Critical Dimensions
- Total probe reach: 10″ (standoff + penetration)
- Max without support: 12″ (this model: 10″)
- Penetration adjustment: ±0.5″
- Weight: 2.4 lb (1.1 kg)
- Body: Aluminum with 304 SST sleeve
Special Capabilities
- Explosion-proof for Class I/II areas
- Works from -50°C to +80°C
- Flag label for probe identification
- Reverse-mount probe design
Installation Requirements
- Counter-bore needed for 1-2″ penetrations
- No extra support needed (under 12″)
- Use included cable grommets for sealing
- Follow API 670 mounting standards
Safety Certifications
- CSA Type 4 explosion-proof
- Class I Div 1 & 2 (Groups C,D)
- Class II Div 1 & 2 (Groups E,F,G)
- FCC Part 15 compliant
- RoHS compliant
Package Contents
- Complete housing assembly
- 8mm proximity probe
- 1.5″ standoff adapter
- NPT plug and reducer
- Cable seal kit with grommets
Important Questions
Q: What does “085” mean in model number?
A: Probe penetration depth = 8.5 inches.
Q: Is this model explosion-proof?
A: Yes – CSA certified for hazardous areas.
Q: Can I adjust penetration depth?
A: Yes – ±0.5 inch adjustment range.
Q: Maximum ambient temperature?
A: +80°C for T4 rating.
Q: Weight with all fittings?
A: Approximately 1.3 kg (2.9 lb).
