Technical Specifications Breakdown
Key parameters for the 21000-34-05-00-095-04-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 21000 Proximity Probe Housing Assemblies |
| Probe Option | 34 = 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals |
| Probe Cable Length | 05 = 0.5 m (20 in) |
| Probe Penetration | 095 = 9.5 in |
| Fitting Option | 04 = One 3/4-14 NPT plug only |
| Mounting Thread | -02 = 3/4-14 NPT |
| Material | Aluminum body with 304 stainless steel sleeve |
| Maximum (C) + (D) Dimension | 13.5 in (34.3 cm) |
| Weight | 1.1 kg (2.4 lb) typical, without fittings |
Industry Applications for Reliable Monitoring
Turbomachinery Protection
In steam turbines and compressors, the 21000-34-05-00-095-04-02 housing secures the probe near the shaft, maintaining a precise gap for accurate vibration readings. The 9.5 in penetration accommodates thick machine casings, while the 0.5 m cable allows direct connection to proximitor circuits without extension cables.
Hazardous Area Compliance
With CSA Type 4 enclosure rating and explosion-proof certification (when ordered with E:00, E:01, E:02, or E:04 options), this assembly meets API 670 standards for externally mounted housings. This reduces the need for additional protective enclosures in chemical and refining facilities.

Installation and Setup Guidance
Engineers should verify the mounting thread (3/4-14 NPT) matches the machine port before installation. The standoff adapter option is not used here (00), so the probe sleeve directly penetrates the housing. Ensure the probe cable is routed without sharp bends to avoid damage. The 0.5 m cable length limits the distance to the proximitor; plan the proximitor location accordingly.
Maintenance and Reliability
Periodically inspect the housing for corrosion or mechanical damage, especially in high-vibration areas. The aluminum body with 304 stainless steel sleeve resists most industrial atmospheres. Check O-rings during routine outages to maintain the seal integrity. No internal adjustments are needed; the assembly is a passive enclosure.
Robust Protection for Critical Vibration Monitoring
In rotating machinery monitoring, probe housing reliability directly impacts measurement accuracy. The Bently Nevada 21000-34-05-00-095-04-02 Proximity Probe Housing Assembly provides a rugged, explosion-proof enclosure for the 3300 XL 8 mm probe, ensuring consistent shaft vibration and position data in harsh industrial environments. This assembly eliminates signal degradation caused by environmental contaminants and mechanical stress, reducing unplanned downtime.

Compatibility and Integration
This housing is designed for the 3300 XL 8 mm proximity probe system. It integrates with Bently Nevada 3300 and 3500 series monitoring systems via standard proximitor connections. The 3/4-14 NPT fitting and mounting thread simplify retrofitting into existing installations.
Selection Guide and Purchasing Advice
When ordering a replacement or new installation, confirm the probe penetration (9.5 in) matches your machine's casing thickness. The 21000-34-05-00-095-04-02 is supplied new in factory packaging with a 12-month warranty from AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 21000-34-05-00-095-04-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
