21000-34-05-20-050-03-02 | Bently Nevada 0.5m Probe Housing Assembly

What Is the 21000-34-05-20-050-03-02?

When machinery protection demands robust vibration monitoring, the 21000-34-05-20-050-03-02 from Bently Nevada provides a durable solution. This proximity probe housing assembly is part of the 21000 series, engineered for hazardous area applications. It includes a 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals, and a 0.5 m (20 in) probe cable. The assembly weighs 1.1 kg (2.4 lb) typical without fittings and features an aluminum body with a 304 stainless steel sleeve.

Key Features and Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector protector and selectable hazardous area approvals.
• Probe Cable Length: 0.5 m (20 in) for flexible installation.
• Standoff Adapter: 2.0 in for precise positioning.
• Probe Penetration: 5 in for deep mounting requirements.
• Fitting Option: 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 1/8 to 3/8 inches.
• Mounting Thread: 3/4-14 NPT for secure installation.
• Material: Aluminum body with 304 stainless steel sleeve for durability.
• Temperature Range: Operating and storage from -51°C to +177°C (-60°F to +351°F) for the 3300 XL 8mm probe.

A distinctive spec is the 0.5 m probe cable, which offers flexibility for tight mounting spaces while maintaining signal integrity.

Real-World Applications

In critical rotating machinery, the 21000-34-05-20-050-03-02 excels at vibration monitoring. It is fully compliant with the American Petroleum Institute's (API) 670 Standard for externally mounted proximity probe housings. This makes it ideal for use in compressors, turbines, and pumps where early fault detection prevents costly downtime. Additionally, its CSA Type 4 enclosure rating ensures reliable performance in harsh industrial environments.

Installation Guide

Mount the housing assembly using the 3/4-14 NPT thread for a secure fit. The standoff adapter of 2.0 in helps position the probe correctly. Ensure the probe penetration of 5 in is fully engaged. Use the provided cable seal grip with appropriate grommets for cable sizes from 1/8 to 3/8 inches. Always follow the manufacturer's manual for wiring and configuration.

Routine Care and Reliability

Inspect the housing assembly periodically for signs of wear or damage. The aluminum and stainless steel construction resists corrosion in most environments. Check the O-rings and thread seal during maintenance to maintain the explosion-proof rating. Regular inspection per the manufacturer's safety manual ensures long-term reliability.

Compatibility and Integration

The 21000-34-05-20-050-03-02 integrates seamlessly with Bently Nevada monitoring systems. It is available with Canadian Standards Association (CSA) approvals for hazardous areas. The housing is certified as a CSA Type 4 enclosure, making it suitable for intrinsically safe applications when paired with approved probes.

Common Questions About the 21000-34-05-20-050-03-02

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

A: The probe cable length is 0.5 m (20 in), as specified in the ordering information.

Q: What temperature range can the 3300 XL 8mm probe withstand?

A: The operating and storage temperature range is -51°C to +177°C (-60°F to +351°F).

Q: What mounting thread option is included?

A: The mounting thread option is 3/4-14 NPT, which must be ordered if the standoff adapter length option is not -00.

Q: What fittings come with the assembly?

A: The fitting option 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 1/8 to 3/8 inches.

Q: Is this housing assembly suitable for hazardous areas?

A: Yes, it is available with CSA approvals and rated explosion proof for hazardous areas, and is certified as a CSA Type 4 enclosure.

Product Support and Availability

The 21000-34-05-20-050-03-02 is in stock and ready to ship from Petro Auto Tech. As a trusted supplier of industrial automation parts, Petro Auto Tech offers this Bently Nevada assembly with a 12-month factory warranty. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.