Product Overview
The Bently Nevada 21000-34-00-15-095-04-02 is a robust proximity probe housing assembly engineered for demanding industrial environments. This Industrial Automation Module provides a secure, protective enclosure for 3300 XL 8 mm proximity probes, ensuring accurate vibration and position monitoring in rotating machinery. With its aluminum body and 304 stainless steel sleeve, the 21000-34-00-15-095-04-02 delivers durability and corrosion resistance, making it ideal for long-term installation in harsh process areas.
Technical Specifications
The 21000-34-00-15-095-04-02 is built to precise specifications to meet the needs of critical asset protection. Below are the key parameters:
| Parameter |
Value |
| Probe Option |
3300 XL 8 mm probe with connector protector |
| Standoff Adapter |
1.5 in |
| Probe Penetration |
9.5 in |
| Fitting Option |
One 3/4-14 NPT plug only |
| Mounting Thread |
3/4-14 NPT |
| Material |
Aluminum body, 304 stainless steel sleeve |
| Probe Cable Length |
1.0 m |
| Max (C)+(D) with visible probe P/N and S/N |
17.0 in (43.18 cm) |
| Max (C)+(D) Dimension |
32.9 in (83.5 cm) |
| Weight (typical, without fittings) |
1.1 kg (2.4 lb) |
Key Features & Compliance
- CSA Type 4 enclosure rating for protection against water and dust ingress.
- Explosion-proof rating for hazardous areas (when ordered with selectable hazardous area approvals).
- Fully compliant with the American Petroleum Institute (API) 670 Standard for externally mounted proximity probe housings.
- Includes dome cover, threaded ports, probe sleeve, O-rings, reverse mount probe, thread seal, and optional fittings.
Industry Applications
The 21000-34-00-15-095-04-02 is designed for reliable performance in critical rotating equipment monitoring. Typical applications include:
- Compressor trains in oil and gas facilities – the 9.5-inch probe penetration and 1.5-inch standoff allow precise positioning for axial and radial vibration measurement.
- Turbo machinery in power generation – the CSA Type 4 enclosure protects against moisture and particulate, ensuring uninterrupted operation in outdoor or washdown environments.
- Pumps and motors in chemical processing – the stainless steel sleeve resists corrosive media, while the explosion-proof rating (with appropriate options) enables safe use in classified areas.
By providing stable mounting and environmental protection, this housing minimizes measurement errors caused by vibration or thermal drift, supporting predictive maintenance strategies.
Installation & Setup Guidance
Proper installation is essential for accurate readings. Follow these guidelines:
- Mount the housing using the 3/4-14 NPT thread. Ensure the standoff adapter is correctly positioned to achieve the desired probe tip clearance.
- For conduit connections, use the threaded ports provided. When using the 3/4-14 NPT plug, ensure it is tightened to prevent ingress of moisture or contaminants.
- Do not overtighten the dome cover; use the O-ring to create a seal without distorting the threads.
- Verify the probe cable length (1.0 m) is adequate for routing to the monitor without strain. Use cable supports if necessary.
- After installation, check the probe gap using an appropriate calibration tool to ensure the system operates within the specified range.
Maintenance & Reliability
Regular inspection of the housing ensures long-term reliability. Check the O-rings and thread seals for wear during routine maintenance intervals. Examine the stainless steel sleeve for signs of corrosion or mechanical damage. Keep the dome cover and conduit ports clean to maintain the CSA Type 4 rating. With proper care, the 21000-34-00-15-095-04-02 provides years of dependable service, reducing unplanned downtime.
Selection Guide & Purchasing Advice
Before ordering, confirm that the 21000-34-00-15-095-04-02 matches your probe assembly requirements. Verify the probe option (3300 XL 8 mm), standoff adapter length (1.5 in), probe penetration (9.5 in), and mounting thread (3/4-14 NPT). If you need explosion-proof certification, ensure the housing is ordered with the appropriate hazardous area approval option (E:00, E:01, E:02, or E:04). For additional accessories or configuration questions, contact PLC Source PRO for expert assistance.