Product Overview
The Bently Nevada 21000-34-00-15-030-03-02 is a precision-engineered proximity probe housing assembly designed for reliable vibration monitoring in rotating machinery. This model features an aluminum body with a 304 stainless steel sleeve, providing robust protection for the probe in demanding industrial environments. The assembly includes a dome cover, threaded conduit ports, an optional standoff adapter, and a reverse mount proximity probe, ensuring secure and accurate measurement.
This housing assembly is certified as a CSA Type 4 enclosure and is fully compliant with the American Petroleum Institute's (API) 670 Standard for externally mounted proximity probe housings. It is rated explosion proof for hazardous areas, making it suitable for intrinsically safe applications when paired with approved probes.
Technical Specifications
| Specification |
Detail |
| Probe Option |
3300 XL 8 mm probe with connector protector, selectable hazardous area approvals |
| Probe Cable Length |
Not required (00) |
| Standoff Adapter |
1.5 in (15) |
| Probe Penetration |
3.0 in (030) |
| Fitting Option |
03 – includes 3/4-14 NPT plug, 3/4-14 to 1/2-14 NPT reducer, and cable seal grip with grommets for cable sizes 1/8–3/16 in, 1/4–5/16 in, and 5/16–3/8 in |
| Mounting Thread |
3/4-14 NPT (option -02) |
| Material |
Aluminum body with 304 stainless steel sleeve |
| Weight |
1.1 kg (2.4 lb) typical, without fittings |
Key Features & Benefits
-
Explosion-proof rating for hazardous area installations.
-
CSA Type 4 enclosure ensures protection against dust, oil, and water.
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API 670 compliant for externally mounted proximity probe housings.
-
Versatile fitting options accommodate various cable diameters.
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304 stainless steel sleeve offers corrosion resistance and durability.
Applications
The 21000-34-00-15-030-03-02 is ideal for critical rotating equipment such as turbines, compressors, pumps, and motors. It provides reliable vibration and position monitoring in industries including oil & gas, power generation, and petrochemical processing. The housing's robust construction and hazardous area approvals make it suitable for both offshore and onshore installations.
In a typical scenario, the housing is mounted on a bearing housing to monitor shaft vibration, enabling early detection of mechanical faults and reducing unplanned downtime.
Installation & Setup
Installation requires proper alignment of the probe with the target surface. Ensure the standoff adapter is correctly sized and the probe penetration is set to the specified 3.0 inches. Use the included NPT fittings and cable seal grip to secure conduit connections. Verify that the mounting thread (3/4-14 NPT) matches the machine's port. For hazardous areas, follow all local electrical codes and use approved sealing methods.
Maintenance & Reliability
Regular inspection of the housing and probe is recommended to ensure accurate measurements. Check for any loosening of fittings or damage to the dome cover. The aluminum and stainless steel construction resists corrosion, but in harsh environments, periodic cleaning may be required. With proper care, this assembly delivers long-term reliability and helps minimize maintenance costs.
Selection Guide & Purchasing Advice
Before ordering, verify that the probe option, cable length, standoff adapter, and mounting thread match your system requirements. The 21000-34-00-15-030-03-02 includes the necessary fittings for most installations. For assistance with configuration, contact PLC Source PRO for expert guidance. We offer new, original products with a 12-month factory warranty.