Description
Engineered to deliver high-integrity mechanical and environmental shielding, the Bently Nevada 31000-00-00-15-000-01-02 serves as a robust protective enclosure for proximity transmitter modules. This heavy-duty housing is specifically designed to isolate delicate field instrumentation from extreme temperatures, corrosive elements, and high-vibration exposure common in demanding industrial environments. Constructed from cast copper-free aluminum, the assembly ensures the long-term operational reliability of 3300 XL and 7200 series Proximitor sensors in hazardous locations.
Features
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Hazardous Area Rating: Certified for deployment in classified locations requiring flameproof and explosion-proof protection configurations.
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Corrosion-Resistant Enclosure: Cast aluminum body with protective coating designed to withstand marine, chemical, and offshore atmospheres.
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Secure Conduit Termination: NPT threaded connections ensure liquid-tight, gas-tight seals when paired with proper cable glands or conduit systems.
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Integrated Mounting Plate: Pre-drilled internal chassis allows direct, low-vibration mounting of standard proximitor footprints.
Applications
- Steam turbine and gas turbine bearing housing monitoring.
- Petrochemical and gas plant compressor monitoring structures.
- Industrial fan, blower, and cooling tower gearbox vibration installations.
- High-humidity power generation plants requiring physical protection for sensor electronics.
Technical Specifications
| Parameter |
Specification Value |
| Manufacturer |
Bently Nevada |
| Part Number |
31000-00-00-15-000-01-02 |
| Housing Category |
Explosion-Proof / Weatherproof Proximitor Housing |
| Enclosure Material |
Cast copper-free aluminum alloy |
| Environmental Rating |
IP66 / NEMA 4X equivalent (with certified seals) |
| Internal Capacity |
Supports up to one standard 3300 XL or 7200 Proximitor Sensor |
| Country of Origin |
United States |
| Shipping Weight (Calculated) |
2.85 kg (6.28 lbs) |
| Package Dimensions (Calculated) |
240 mm x 205 mm x 180 mm |
Empirical Engineering Insights
Alternative Models & Compatibility
The 31000 series housing maintains physical interchangeability with legacy 32000 series housings. When transitioning older 7200 series installations to modern 3300 XL 8mm proximity systems, the internal mounting plate must be aligned to ensure proper grounding separation and spacing from the housing’s metal wall to avoid crosstalk or mechanical interference.
Application Pitfalls & Engineering Notes
Condensation buildup is a frequent failure point inside sealed housings when exposed to cyclic thermal conditions. For optimal service life, install approved, explosion-proof breathers/drains in the lowest conduit entry point to allow continuous moisture escape without compromising the enclosure’s safety class.
Commissioning & Wiring Tips
To prevent common-mode noise on the transducer signals, verify that the housing is electrically bonded to the machine ground system. Ensure that the internal grounding lug is linked to the cable shield drain wire, keeping shield grounding restricted to a single point (typically the monitoring rack) to eliminate ground loop interference.
Installation Guidelines
CRITICAL WARNING
Do not open the housing cover while the electrical circuits are energized in hazardous atmospheres. Isolate power at the source and confirm explosive gas metrics are safe before attempting installation, maintenance, or calibration adjustments.
1
Mount the empty housing chassis to a flat, rigid structural support close to the probe point, keeping physical vibration transfer to a minimum.
2
Securely bolt the Proximitor sensor inside the housing using the insulated mounting plate spacer configuration.
3
Route the coaxial cable and transmission lines through certified, threaded explosion-proof conduit seals.
4
Torque the threaded housing cover completely to engage all thread paths to maintain environmental IP rating and flameproof certification.