The Bently Nevada 31000-16-05-00-037-03-02, also cataloged as the 31000 Proximity Probe Housing, operates as a dedicated hardware component for mounting and protecting eddy-current transducers within 3300/3500 Machinery Protection Systems. This housing assembly provides a stable mechanical interface and environmental isolation for proximity probes, ensuring the transducer remains fixed relative to the monitored rotor surface to maintain measurement repeatability.

Model Configuration Breakdown

• 31000: Probe Housing assembly

• -16: Mounting thread and pipe size designation

• -05: Material and finish specification

• -00: Approval options

• -037: Probe extension/insertion depth (inches)

• -03: Connection and fitting configuration

• -02: Mounting hardware and accessory kit

Hardware Specifications

Mechanical Monitoring & Sensor Alignment

The performance of proximity transducer systems is contingent upon the rigid mechanical mounting provided by the probe housing. To ensure valid eddy-current probe scaling, the housing must be installed to prevent mechanical resonance or vibration transfer from the machine casing to the probe tip. Precise gap voltage validation at the -10 VDC target depends on the housing's ability to maintain a fixed distance under varying thermal conditions. Proper installation utilizes standard practices for cross-talk suppression by isolating the probe signal path from external electromagnetic interference and ensuring the housing assembly does not introduce spurious motion into the rotor dynamics data.

Ordering Info

• One (1) 31000-16-05-00-037-03-02 Housing assembly.

• Mounting locknuts and washers.

• Thread sealing components.

• Installation instruction manual and alignment reference guide.

Installation Guidelines

• Structural Integrity: Ensure the mounting surface is flat and free of debris to prevent misalignment or housing tilt.

• Torque Specifications: Apply factory-recommended torque to locknuts to prevent loosening due to machinery vibrations.

• Grounding: Ensure electrical continuity between the housing and the machine frame for proper shielding of the transducer assembly.

• Thread Engagement: Verify the insertion depth matches the required mechanical gap (target: 1.27 mm nominal).

Delivery Information

• Delivery time: 2-7 days when payment finish.

• Shipped via DHL/FEDEX/UPS.

• Securely packed in anti-static industrial packaging.

Frequently Asked Questions

• Does the housing contribute to signal noise?

  A loose or improperly tightened housing allows mechanical vibration to modulate the probe gap, appearing as false vibration in the monitoring system.

• How can I prevent fluid leakage through the housing?

  Use appropriate NPT thread sealants or O-ring gaskets compatible with the machine's lubricating oil or hydraulic fluid environment.

• Is the housing compatible with all probe types?

  The housing is designed for specific probe diameters (e.g., 8 mm or 5 mm); check the internal bore diameter before attempting to insert a probe.

• Can I modify the housing length in the field?

  Modifying the housing length is not recommended, as it alters the insertion depth and may prevent the probe from reaching the specified measurement gap.

• What material is the housing made from?

  The housing is constructed from high-strength, corrosion-resistant alloy to withstand harsh industrial environments and prevent seizing in the machine casing.

• Does the housing require periodic maintenance?

  Inspect housing locknuts for tightness during regular machine outages to ensure vibration does not cause the housing to back out of the mount.

• How is the probe depth adjusted within the housing?

  The probe is positioned by rotating it within the housing threads and securing it with the provided locknuts once the target gap is achieved.

• Is the housing grounded to the machine?

  Yes, the housing must maintain a reliable electrical connection to the machine frame to ensure the probe cable shield remains at earth potential.