21000-28-10-00-065-03-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-28-10-00-065-03-02

When machinery vibration threatens uptime, the 21000-28-10-00-065-03-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is part of the 21000 series, designed for externally mounted probes. It includes a 3300 XL 8 mm probe with a 1.0 m cable and a 6.5 in probe penetration. The assembly is engineered for hazardous areas with CSA explosion-proof ratings. Its aluminum body and 304 stainless steel sleeve ensure durability in harsh environments.

Key Features and Technical Specifications

The 21000-28-10-00-065-03-02 offers several distinctive features based on its ordering codes. The probe connector option 28 indicates a 3300 XL 8 mm probe with selectable hazardous area approvals. The probe cable length is 1.0 m (39 in), as specified by suffix code 10. The probe penetration depth is 6.5 in (option D -065). For penetration lengths between 1.0 and 2.0 inches, counter boring the machine case may be necessary to reduce side view effects. If the total penetration (C plus D) exceeds 300 mm (12 in), sleeve support near the probe is required to prevent resonance. The adjustment range for option D is 13 mm (±0.5 in). The fittings option 03 includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and a cable seal grip with grommets for cable sizes from 1/8 to 3/8 inches. The mounting thread option -02 is 3/4-14 NPT. The assembly weighs 1.1 kg (2.4 lb) typical without fittings.

Applications and Use Cases

In rotating machinery monitoring, the 21000-28-10-00-065-03-02 excels for vibration and position sensing. It is fully compliant with the American Petroleum Institute's API 670 Standard for externally mounted proximity probe housings. Consequently, it suits oil and gas, power generation, and petrochemical applications. The CSA Type 4 enclosure rating ensures protection against dust and water ingress. Therefore, it performs reliably in outdoor or washdown environments.

Installation and Setup

Mount the 21000-28-10-00-065-03-02 using the 3/4-14 NPT mounting thread. Ensure the probe penetration depth is set within the 13 mm adjustment range. For longer penetrations, add sleeve support to avoid resonance. The cable seal grip accommodates various cable diameters. Use the provided NPT fittings for conduit connections. Always follow the manufacturer's manual for proper alignment and gap setting.

Maintenance and Reliability

Regular inspection of the probe and housing assembly extends service life. Check O-rings and thread seals for wear during routine maintenance. The aluminum body and stainless steel sleeve resist corrosion. Consequently, the assembly maintains accuracy over time. For hazardous areas, verify the explosion-proof integrity per CSA guidelines. This proactive approach reduces unplanned downtime.

Compatibility and Integration

The 21000-28-10-00-065-03-02 integrates with Bently Nevada monitoring systems. It accepts 3300 XL 8 mm proximity probes with selectable hazardous area approvals. The assembly is available with CSA approvals for intrinsically safe applications. It works with standard conduit fittings and cable glands. For system compatibility, consult the official Bently Nevada documentation.

Frequently Asked Questions

What is the probe cable length for the 21000-28-10-00-065-03-02?

The probe cable length is 1.0 m (39 in), as indicated by suffix code 10.

What is the probe penetration depth for this model?

The probe penetration depth is 6.5 in (option D -065), with an adjustment range of 13 mm (±0.5 in).

What fittings are included with the 21000-28-10-00-065-03-02?

The fittings option 03 includes one 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, and a cable seal grip with grommets for cable sizes from 1/8 to 3/8 inches.

Is the 21000-28-10-00-065-03-02 suitable for hazardous areas?

Yes, it is available with CSA explosion-proof approvals and is rated for hazardous areas.

Product Support and Availability

The 21000-28-10-00-065-03-02 is in stock and ready to ship from Petro Auto Tech. It comes as new and original in factory packing with a 12-month warranty. Contact Petro Auto Tech for lifecycle status and ordering details.