21000-34-10-15-028-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Overview of the 21000-34-10-15-028-04-02 Proximity Probe Housing Assembly

When reliable vibration monitoring in harsh environments is critical, the 21000-34-10-15-028-04-02 from Bently Nevada delivers robust performance. This housing assembly integrates a 3300 XL 8 mm probe with connector protector, a 1.0 m cable, and a 1.5 in standoff adapter. It is designed for externally mounted proximity probes in industrial machinery.

The 21000 series aluminum body with a 304 stainless steel sleeve ensures durability in demanding conditions. This model supports selectable hazardous area approvals and is CSA certified as explosion-proof when ordered with appropriate options.

Key Features and Technical Specifications

• Probe Option: 3300 XL 8 mm probe with connector protector
• Cable Length: 1.0 m (39 in)
• Standoff Adapter: 1.5 in
• Probe Penetration: 2.8 in
• Fitting Option: One 3/4-14 NPT plug
• Mounting Thread: 3/4-14 NPT
• Housing Material: Aluminum body with 304 stainless steel sleeve
• Weight: 1.1 kg (2.4 lb) typical without fittings
• CSA Rating: Explosion-proof for hazardous areas (with E:00, E:01, E:02, or E:04 options)

The distinctive spec here is the 1.5 in standoff adapter, which allows precise positioning of the probe relative to the shaft, improving measurement accuracy in tight installations.

Applications and Use Cases

This housing assembly is ideal for monitoring rotating equipment such as turbines, compressors, and pumps in refineries, chemical plants, and power generation facilities. Its CSA Type 4 enclosure rating makes it suitable for outdoor and washdown environments. Additionally, it complies with API 670 standards for externally mounted proximity probes, ensuring reliable data in critical machinery protection systems.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread. Ensure the standoff adapter is correctly set to 1.5 in for optimal probe gap. The probe cable length of 1.0 m allows flexible routing to junction boxes. For hazardous area installations, verify that the housing is ordered with the appropriate explosion-proof fitting option.

Maintenance and Reliability

Regularly inspect the O-rings and thread seal for wear. The aluminum and stainless steel construction resists corrosion, extending service life. Periodic checks of the probe sleeve and cable integrity help prevent false readings. Following these steps reduces unplanned downtime and maintenance costs.

Compatibility and Integration

The 21000-34-10-15-028-04-02 works with Bently Nevada monitoring systems and accepts standard proximity probes. It is compatible with both intrinsically safe and non-intrinsically safe installations when paired with appropriate barriers. The housing meets CSA Type 4 enclosure requirements for environmental protection.

Frequently Asked Questions

What is the cable length of the 21000-34-10-15-028-04-02?

The probe cable length is 1.0 m (39 in).

What mounting thread does this housing use?

It uses a 3/4-14 NPT thread.

Is this housing explosion-proof?

Yes, when ordered with E:00, E:01, E:02, or E:04 options, it is CSA rated explosion-proof.

What is the standoff adapter length?

The standoff adapter is 1.5 in.

What materials are used in the housing?

The body is aluminum with a 304 stainless steel sleeve.

Product Support and Availability

The 21000-34-10-15-028-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead time. We provide factory warranty and original packaging.