Bently Nevada 21000-34-00-20-050-03-02 Proximity Probe Housing Assembly

Technical Specifications Breakdown

Key parameters for the 21000-34-00-20-050-03-02 are listed below for quick reference:

Industry Applications and Cost Impact

By using a CSA Type 4 enclosure and API 670 compliance, it reduces the risk of environmental ingress—a common cause of premature probe failure. The 2-inch standoff and 5-inch penetration allow precise gap setting, minimizing installation rework. From a cost perspective, a single false shutdown in a refinery can exceed $100,000; this housing helps prevent that by maintaining measurement integrity.

Installation and Setup Guidance

When installing the 21000-34-00-20-050-03-02, first ensure the mounting surface is clean and flat. Use the supplied 3/4-14 NPT plug and reducer as needed for conduit entry. The cable seal grip accommodates cables from 1/8 to 3/8 inches—verify your cable diameter before tightening. The probe cable length is 1.0 m, so plan your junction box location accordingly. For hazardous areas, confirm that the selected probe option (34) matches your area classification.

Maintenance and Reliability

Periodically inspect the O-rings and dome cover seal for cracks or deformation. The aluminum body with 304 stainless steel sleeve resists corrosion in most industrial atmospheres. No internal adjustments are required; the assembly is designed for long-term, maintenance-free operation. If the housing is exposed to washdown or chemical splashes, verify the CSA Type 4 rating remains adequate.

Robust Protection for Critical Vibration Monitoring

In rotating machinery monitoring, the housing assembly is often the unsung hero. A poorly sealed or misaligned probe housing can lead to false readings, unplanned downtime, and costly repairs. The Bently Nevada 21000-34-00-20-050-03-02 Proximity Probe Housing Assembly addresses this challenge by providing a rugged, certified enclosure for the 3300 XL 8 mm probe. This assembly ensures reliable vibration and position measurements in harsh industrial environments, directly impacting operational cost by reducing false trips and extending sensor life.

Selection Guide and Purchasing Advice

When ordering a replacement or new installation, confirm that the standoff adapter length (2 in) and probe penetration (5 in) match your machine geometry. The 21000-34-00-20-050-03-02 is available new and in original factory packing from AutoDCSTech with a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.