How Can the Bently Nevada 31000-28-05-35-032-03-02 Housing Assembly Enhance Your Machinery Monitoring?

What is the Bently Nevada 31000 Proximity Probe Housing Assembly?

The Bently Nevada 31000 Proximity Probe Housing Assembly is a specialized enclosure designed for mounting proximity probes through machine casings. It is commonly used for radial vibration or Keyphasor® measurements, providing a secure and accessible solution for industrial machinery monitoring. This assembly allows for easy gap adjustment or probe replacement without the need for machine disassembly, minimizing downtime and maintenance costs.

Why is 31000-28-05-35-032-03-02 stand out?

The component 31000-28-05-35-032-03-02 is part of the 3300 XL 8mm proximity transducer system, which offers complete interchangeability of probes, extension cables, and Proximitors without bench calibration.  A key requirement is that the combined electrical length of the probe and extension cable must equal that of the Proximitor. This assembly serves as essential Turbine Supervisory Instrumentation (TSI) and industrial automation parts.  Its housing, built from corrosion-resistant, glass-reinforced PPS with a 304 stainless steel sleeve and Neoprene seals, operates from -51°C to 105°C and complies with API 670.  The 3300 XL Proximitor Sensor is backward-compatible, fits high-density DIN rails or a standard panel footprint, and provides high RFI immunity for use in fiberglass housings, meeting CE requirements without shielded conduit.

Understanding the Part Number: 31000-28-05-35-032-03-02

Breaking down the part number provides insight into its configuration:

28: 3300 XL 8mm probe with multiple approvals

05: 0.5-meter probe cable length

35: Standoff adapter length of 3.5 inches

032: Probe penetration length of 3.2 inches

03: Fittings configuration (two plugs, one 3/4-14 NPT fitting)

02: Mounting thread option (3/4-14 NPT)

This configuration highlights the assembly’s versatility and suitability for specific industrial applications.

Applications and Use Cases

The 31000 Housing Assembly 31000-28-05-35-032-03-02 is an accessory for the Bently Nevada 1900/65A General Purpose Equipment Monitor, supporting its continuous monitoring and stand-alone protection functions. It delivers critical radial vibration and Keyphasor® measurements for machinery diagnostics. A key advantage for spare parts management is its full backward compatibility; 3300 XL components are interchangeable with older non-XL series parts, simplifying the inventory of essential TSI spare parts and industrial automation parts. The sensor fits standard panel footprints without isolator plates and is suitable for use in general-purpose or hazardous-area applications with appropriate safety barriers.

Installation and Maintenance Tips

For best performance, ensure the housing is mounted on a machine casing that is securely affixed to the bearing, which helps maintain accurate vibration signal transmission. The external access design allows easy fine-tuning of probe gap without disassembling machinery. Periodic inspections of O-rings and fittings are recommended to preserve sealing and prevent contamination. When using probe sleeves longer than 12 inches, providing additional support close to the probe helps avoid resonance issues and ensures stable measurement.

Conclusion

Bently Nevada 31000 Proximity Probe Housing Assembly 31000-28-05-35-032-03-02 provides a durable solution for radial vibration and Keyphasor® measurement.   Its corrosion-resistant PPS and stainless-steel construction ensures reliability in harsh conditions.   The housing allows external probe access for adjustment or replacement without machine disassembly, minimizing downtime.  As essential Turbine Supervisory Instrumentation components, these assemblies are critical TSI spare parts that simplify spare parts management through full compatibility with 3300 XL systems.