Reliable Probe Housing with Connector Protection for Critical Machinery Monitoring

The Bently Nevada 21000-34-05-00-030-03-02 3300 XL Probe Housing Assembly is a rugged external mounting assembly engineered for 3300 XL 8 mm proximity probes with connector protector and multiple hazardous-area approvals. Designed for demanding industrial environments, this housing assembly safeguards the proximity probe against moisture, dust, oil, vibration, and mechanical damage while allowing convenient probe adjustment and replacement without removing the machine from service. Its durable construction makes it an excellent solution for continuous condition monitoring programs where equipment availability and measurement accuracy are essential.

This configuration is supplied with a 3300 XL 8 mm probe featuring a connector protector, a 0.5 m (20 in.) integral probe cable, no standoff adapter, a 3.0 in. (76 mm) probe penetration, Option 03 conduit fittings, and a 3/4-14 NPT mounting thread. The connector protector provides additional cable strain relief and helps improve long-term reliability in applications exposed to vibration or frequent maintenance.

Product Specifications

Technical FAQs

1. What is the purpose of this probe housing assembly?

It provides a protected external mounting enclosure for a 3300 XL 8 mm proximity probe, allowing accurate shaft vibration and position monitoring while protecting the sensing system from harsh industrial environments.

2. What makes Probe Option 34 different?

Option 34 includes a 3300 XL 8 mm proximity probe with a connector protector and multiple hazardous-area approvals, providing additional protection for the probe connector and cable.

3. What does option "05" indicate?

Option 05 specifies a 0.5-meter (20-inch) integral probe cable.

4. What does option "00" represent?

Option 00 means the housing is supplied without a standoff adapter, allowing direct installation on the machine casing.

5. What does probe penetration "030" mean?

It specifies a 3.0-inch (76 mm) probe penetration length suitable for many standard machinery installations.

6. What is included with fitting option "03"?

Option 03 includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and one cable seal grip with interchangeable grommets for multiple cable diameters.

7. Which mounting thread is used?

This model uses a 3/4-14 NPT mounting thread, providing a secure installation when no standoff adapter is selected.

8. What materials are used in the housing assembly?

The assembly features a cast aluminum housing with a 304 stainless-steel probe sleeve, delivering excellent corrosion resistance and mechanical durability.

9. Why is a connector protector beneficial?

The connector protector helps reduce cable strain, minimizes the risk of connector damage, and improves reliability in high-vibration or frequently serviced installations.

10. Which industries commonly use this model?

This housing assembly is widely used in oil & gas, petrochemical, power generation, mining, pulp and paper, water treatment, and other industries operating critical rotating equipment.