Product Overview
When machinery vibration threatens uptime, the Bently Nevada 21000-34-00-00-066-03-02 provides a rugged, explosion-proof housing for precise proximity probe monitoring. This Industrial Automation Module is designed for externally mounted sensors in hazardous areas, ensuring reliable data collection for critical rotating equipment.
The Bently Nevada 21000-34-00-00-066-03-02 combines an aluminum body with a 304 stainless steel sleeve, offering durability and corrosion resistance. It is rated for CSA Type 4 enclosures and fully complies with API 670 standards, making it a trusted choice for refinery, petrochemical, and power generation applications.
Technical Specifications
| Parameter |
Value |
| Probe Option |
3300 XL 8 mm probe with connector protector, selectable hazardous area approvals |
| Probe Cable Length |
Probe cable not required |
| Standoff Adapter |
No adapter |
| Probe Penetration |
6.6 in |
| Fitting Option |
One 3/4-14 NPT plug; one 3/4-14 to 1/2-14 NPT reducer; one cable seal grip with grommets (1/8-3/16 in, 1/4-5/16 in, 5/16-3/8 in) |
| Mounting Thread |
3/4-14 NPT |
| Material |
Aluminum body with 304 stainless steel sleeve |
| Probe Cable Length |
1.0 m |
| Maximum (C)+(D) with visible probe (P/N and S/N) |
17.0 in (43.18 cm) |
| Maximum (C)+(D) Dimension |
32.9 in (83.5 cm) |
| Weight |
1.1 kg (2.4 lb) typical, without fittings |
Applications
The Bently Nevada 21000-34-00-00-066-03-02 is ideal for monitoring shaft vibration and position in turbines, compressors, pumps, and motors. Its explosion-proof design suits hazardous areas where safety is paramount. In a refinery, this housing protects the probe from harsh environments, ensuring accurate readings that prevent unplanned downtime.
Its CSA Type 4 rating and API 670 compliance make it suitable for both new installations and retrofits in existing machinery protection systems.
Installation & Setup
Mount the housing using the 3/4-14 NPT thread, ensuring a secure fit. The included fittings allow for conduit connections and cable sealing. Select the appropriate grommet size based on your cable diameter (1/8-3/16 in, 1/4-5/16 in, or 5/16-3/8 in). Verify the probe penetration of 6.6 in matches your measurement requirements before finalizing the mount.
For intrinsically safe applications, pair this housing with a hazardous-area-approved probe. Always follow the manufacturer's guidelines for proper installation torque and cable routing.
Maintenance & Reliability
Regularly inspect the O-rings and thread seals to maintain the explosion-proof integrity. Check the cable seal grip for wear, especially in high-vibration environments. The aluminum body with stainless steel sleeve resists corrosion, extending service life and reducing replacement frequency—a cost-effective choice for long-term operations.
Selection Guide
Before purchasing, confirm your required probe penetration and cable length. This model includes a 1.0 m probe cable and a 6.6 in penetration. Ensure your mounting thread is 3/4-14 NPT. For hazardous area approvals, select the appropriate probe option. PLC Source PRO offers this Bently Nevada 21000-34-00-00-066-03-02 in new, factory-packed condition with a 12-month warranty.