21000-28-05-00-105-04-02 | Bently Nevada 8 mm Proximity Probe Housing Assembly

Introduction to the 21000-28-05-00-105-04-02

When a rotating machinery engineer needs to monitor shaft vibration in a hazardous area, the 21000-28-05-00-105-04-02 from Bently Nevada offers a robust solution. This proximity probe housing assembly is part of the 21000 series and is designed for externally mounted probes. It includes a 3300 XL 8 mm probe with a 0.5 m cable. The assembly also features a 10.5 in probe penetration and a 3/4-14 NPT fitting. This product is new and comes in original factory packing with a 12-month warranty.

Key Features and Technical Specs of the 21000-28-05-00-105-04-02

• Probe Type: 3300 XL 8 mm proximity probe with connector.
• Cable Length: 0.5 m (20 in).
• Probe Penetration: 10.5 in.
• Fitting Option: One 3/4-14 NPT plug only.
• Mounting Thread: 3/4-14 NPT.
• Material: Aluminum body with 304 stainless steel sleeve.
• Weight: 1.1 kg (2.4 lb) typical without fittings.
• Certifications: CSA Type 4 enclosure, explosion-proof for hazardous areas.

A distinctive feature is the selectable hazardous area approval for the probe. This allows the assembly to be used in intrinsically safe applications. The aluminum body and stainless steel sleeve provide durability in harsh environments.

Applications and Use Cases

Engineers often use the 21000-28-05-00-105-04-02 in oil and gas, petrochemical, and power generation facilities. It monitors shaft vibration in pumps, compressors, and turbines. The assembly meets API 670 standards for externally mounted proximity probes. This makes it suitable for critical rotating equipment. Additionally, its CSA certification allows installation in Class I Division 1 and 2 areas.

Installation and Setup Guide

Mounting the 21000-28-05-00-105-04-02 requires a 3/4-14 NPT threaded hole. The probe sleeve length must match the required penetration depth. Use the included thread seal and O-rings to ensure a proper seal. For conduit connections, use the threaded ports on the dome cover. Always follow the manufacturer's manual for safe wiring and grounding.

Maintenance and Reliability

Regular inspection of the housing and probe is essential. Check for any signs of wear or damage to the O-rings and thread seal. The aluminum body resists corrosion, but periodic cleaning is recommended. Ensure the conduit connections remain tight to maintain the explosion-proof rating. Following these steps helps extend the service life of the assembly.

Compatibility and Integration

The 21000-28-05-00-105-04-02 works with Bently Nevada monitoring systems. It can be integrated with vibration analyzers and data acquisition units. The probe connects via a standard connector. The assembly is compatible with both aluminum and stainless steel housings. For hazardous area use, order the appropriate probe approval.

FAQ about the 21000-28-05-00-105-04-02

What is the probe cable length for this model?

The probe cable length is 0.5 m (20 in).

What certifications does this housing have?

It is CSA certified as Type 4 enclosure and explosion-proof for hazardous areas.

What is the weight of the assembly?

The typical weight is 1.1 kg (2.4 lb) without fittings.

Is the probe included with the housing?

Yes, the assembly includes a reverse mount proximity probe.

Product Support and Availability

The Bently Nevada 21000-28-05-00-105-04-02 is in stock and ready to ship. Contact Petro Auto Tech for current availability and ordering information.