Configured for specific technical tasks in machinery protection platforms, the Bently Nevada 31000-00-00-00-082-03-02 (31000 Proximity Probe Housing) provides direct physical/electrical execution. The heavy-duty mechanical enclosure functions as an external mounting terminal for proximity transducers, allowing static calibration adjustments and environmental containment of the sensing elements while the machine train remains online.

Assembly Option Architecture

• 31000: Front-mount proximity probe housing assembly, standard profile

• -00: Probe threaded option (3/8-24 UNF thread structure)

• -00: Explosion-proof certification option (None required, standard commercial rating)

• -00: Fluid conduit installation choice (Standard open layout without internal flexible armor lines)

• -082: Internal sleeve length configuration (8.2 inches overall mechanical sleeve depth)

• -03: Outer casing fitting orientation (3/4-14 NPT dual hub termination structure)

• -02: Enclosure cap selection (Standard aluminum blind cover execution)

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics Calibration

The mechanical position of the internal sleeve assembly establishes the primary reference gap required for uniform eddy-current probe scaling. During commissioning or field tuning, engineers utilize the rear access hex assembly to shift the internal 3/8-24 UNF probe position relative to the shaft surface, tracking output signals until achieving gap voltage validation at a stable -10 VDC baseline target. This structural isolation safeguards the transducer against local housing vibration, minimizing signal artifacts across complex rotor dynamics planes. The solid-wall casting minimizes electromagnetic induction from nearby high-current lines, reinforcing cross-talk suppression between adjacent radial or axial probe pairs mounted within the same housing zone.

Component List

• 1 x Bently Nevada 31000 Aluminum Housing Body

• 1 x 8.2-inch Adjustable Internal Probe Sleeve Stem

• 2 x Heavy-Duty Synthetic Casing O-Rings

• 1 x Threaded Aluminum Blind Cover Cap

• 1 x Mounting Fastener Installation Set

Field Mechanical Implementation Guidelines

Physical installation requires strict matching of machine wall thickness against the 8.2-inch sleeve range before cutting entry paths.

1. Align the housing base flange over the tapped maching bearing surface pad, verifying the placement of structural face seals to isolate inner machine lubrication fluids.

2. Advance the internally threaded 3/8-24 UNF probe sleeve into the main chamber port until the integrated 8 mm probe tip makes mechanical contact with the monitored target surface.

3. Retract the sleeve mechanism systematically to define the electrical operating window. Monitor loop output using a digital voltmeter until achieving precise gap voltage validation at -10.0 VDC.

4. Secure the primary housing external compression gland collar to a torque setting of 13.5 N-m (10 ft-lb) to fix the insertion depth against high-frequency machinery vibration.

5. Thread external instrumentation conduit into the 3/4-14 NPT ports. Apply anaerobic pipe compound to all active thread interfaces to isolate the inner electronics from moisture ingress.

Transit Packaging Protocols

Delivery time: 2-7 days when payment finish, moving via specialized international air transport including DHL, FEDEX, and UPS. All units undergo warehouse isolation inside anti-static industrial packaging using shock-attenuating foam inserts to prevent dynamic thread deformation or dimensional alignment shifts during international distribution.

Transducer Housing FAQ

Q: Can the inner proximity probe be extracted or adjusted while the machine is operating at full load velocity?

A: Yes. The 31000 housing structure is designed for external calibration access. Technicians can back off the primary compression nut and retract the internal sleeve with the probe attached without exposing internal machinery oil systems or stopping production loops.

Q: Does this specific 31000 product number contain an internal proximity sensor or extension line?

A: No. The 31000-00-00-00-082-03-02 part number specifies only the cast mechanical housing, adjustable sleeve mechanism, and associated sealing hardware. The matching 3300 XL 8 mm probe and driver electronics must be procured as separate line items.

Q: What action must be taken with the dual 3/4-14 NPT conduit entries if only one cable run is deployed?

A: The unused 3/4-14 NPT conduit hub must be sealed using a certified, matching metal blanking plug. The plug must engage at least 5 full threads into the housing wall to preserve the environmental and explosion resistance ratings of the enclosure.