Bently Nevada 31000-00-00-15-047-01-02 Proximity Probe Housing Assembly

Bently Nevada 31000-00-00-15-047-01-02 Proximity Probe Housing Assembly

The Bently Nevada 31000-00-00-15-047-01-02, also cataloged as the 31000 housing assembly, operates as a mechanical enclosure for 3300 XL 8 mm proximity probes within turbine supervisory instrumentation (TSI) systems.

Suffix Breakdown & Model Matrix

• 31000: Stainless steel proximity probe housing assembly
• 00: Probe not required
• 00: Probe cable not required
• 15: Standoff adapter minimum length 1.5 in (38 mm)
• 047: Probe penetration depth 4.7 in
• 01: One 3/4-14 NPT fitting, two plugs
• 02: 3/4-14 NPT mounting thread option

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage Validation

Although the housing itself is passive, it ensures stable mechanical alignment for eddy-current probes. Proper seating maintains gap voltage validation at -10 VDC reference targets. The design minimizes mechanical vibration transfer, supporting rotor dynamics monitoring accuracy.

Frequently Asked Questions

Q: Can the housing be installed without a probe? A: Yes. The assembly can be ordered without a probe or cable, depending on system requirements.

Q: Does the housing affect electrical calibration? A: No. Calibration is defined by the probe and Proximitor sensor; the housing provides mechanical positioning only.

Q: Is the housing interchangeable across probe lengths? A: Yes, provided the penetration depth and standoff adapter dimensions match the probe specifications.

Field Installation Guidelines

• Ensure proper engagement of 3/4-14 NPT threads to secure mechanical stability.
• Verify standoff adapter length (1.5 in) and penetration depth (4.7 in) match system clearance requirements.
• Apply thread sealant where required for hazardous environments.
• Confirm grounding of probe shielding at the Proximitor end; housing does not provide electrical termination.
• Inspect fittings and plugs for tightness to prevent ingress of dust or moisture.