21000-28-05-20-037-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the Bently Nevada 21000-28-05-20-037-04-02

When machinery vibration threatens uptime, the 21000-28-05-20-037-04-02 provides a robust solution. This Bently Nevada proximity probe housing assembly is engineered for hazardous areas. It delivers precise, non-contact measurement in demanding industrial environments.

Key Features and Technical Specifications

• Probe Option: 3300 XL 8 mm probe with selectable hazardous area approvals.
• Probe Cable Length: 0.5 m (20 in).
• Standoff Adapter: 2 in.
• Probe Penetration: 3.7 in.
• Fitting: One 3/4-14 NPT plug.
• 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, explosion-proof for hazardous areas, RoHS compliant.

A distinctive spec is the 0.5 m probe cable length. This short cable reduces signal loss and simplifies installation in tight spaces. It ensures reliable data transmission for critical vibration analysis.

Applications and Use Cases

Industries such as oil and gas, power generation, and petrochemical rely on this housing. It monitors shaft vibration and position in turbines, compressors, and pumps. The CSA Type 4 and explosion-proof ratings make it ideal for Class I Divisions 1 and 2 areas. Consequently, engineers choose it for safety-critical rotating machinery.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread. Ensure the standoff adapter aligns correctly for the 3.7 in probe penetration. Connect the probe cable (0.5 m) to the monitoring system. Always follow the manufacturer's instructions for hazardous area wiring. Use the included 3/4-14 NPT plug to seal unused ports.

Maintenance and Reliability

Inspect the housing periodically for corrosion or damage. Verify the O-rings and thread seal remain intact. The aluminum and stainless steel construction resists harsh environments. Regular checks extend service life and prevent unplanned downtime.

Compatibility and Integration

This assembly works with Bently Nevada monitoring systems and 3300 XL probes. It integrates into existing vibration monitoring networks. The CSA certification ensures compatibility with North American hazardous area requirements.

FAQ about the 21000-28-05-20-037-04-02

Q: What is the probe cable length for this model?

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

Q: What certifications does the 21000-28-05-20-037-04-02 hold?

A: It is CSA Type 4 certified, explosion-proof for hazardous areas, and RoHS compliant.

Q: What is the mounting thread size?

A: The mounting thread is 3/4-14 NPT.

Q: What material is the housing made of?

A: The housing has an aluminum body with a 304 stainless steel sleeve.

Q: What probe does this housing accept?

A: It accepts a 3300 XL 8 mm probe with selectable hazardous area approvals.

Product Support and Availability

The 21000-28-05-20-037-04-02 is in stock and ready to ship. Petro Auto Tech offers this new, factory-sealed unit with a 12-month warranty. Contact our team for ordering assistance or technical questions.