21000-34-05-30-050-03-02 | Bently Nevada 0.5m Cable Proximity Probe Housing Assembly

Introduction to the 21000-34-05-30-050-03-02

When machinery vibration threatens uptime, the 21000-34-05-30-050-03-02 from Bently Nevada delivers robust protection. This proximity probe housing assembly is part of the 21000 series, engineered for externally mounted probes in hazardous areas. It combines an aluminum body with a 304 stainless steel sleeve, ensuring durability in demanding industrial environments.

Key Features & Technical Specs

• The assembly includes a 3300 XL 8 mm probe with connector protector and selectable hazardous area approvals.
• A 0.5 m (20 in) probe cable length simplifies installation in tight spaces.
• The standoff adapter measures 3.0 in, providing precise gap setting for accurate measurements.
• Probe penetration depth is 5.0 in, accommodating various machine configurations.
• Fittings include one 3/4-14 NPT plug, one reducer, and a cable seal grip for multiple cable sizes.
• The mounting thread is 3/4-14 NPT, ensuring secure attachment.
• Typical weight is 1.1 kg (2.4 lb) without fittings, balancing strength with portability.
• Maximum probe plus cable dimension is 13.5 in (34.3 cm), supporting flexible routing.

A standout spec is the 0.5 m probe cable length, which reduces signal loss in confined installations and simplifies wiring in retrofits.

Industry Applications

In rotating machinery like pumps and compressors, the 21000-34-05-30-050-03-02 excels at vibration monitoring. It is fully compliant with the American Petroleum Institute's API 670 Standard for externally mounted proximity probe housings. Additionally, its CSA Type 4 enclosure rating makes it suitable for outdoor and washdown environments. The assembly supports intrinsically safe applications when paired with approved probes, enhancing safety in hazardous zones.

Installation Guide

Mount the housing using the 3/4-14 NPT thread, ensuring the standoff adapter is correctly set to 3.0 in. Connect the probe cable with the provided connector protector, and route through the cable seal grip. Verify that the probe penetration depth of 5.0 in aligns with the target measurement point. For explosion-proof installations, use only CA versions of the housing with appropriate options.

Routine Care

Inspect the O-rings and thread seal periodically for wear. Keep the housing exterior clean to prevent debris buildup. The aluminum and stainless steel construction resists corrosion, but regular checks ensure long-term reliability. Follow the manufacturer's manual for any maintenance procedures.

Compatibility & Integration

The 21000-34-05-30-050-03-02 integrates with Bently Nevada monitoring systems and third-party vibration analyzers. It works with standard 8 mm proximity probes and accepts various cable sizes through its seal grip. The CSA Type 4 rating ensures compatibility with most industrial control panels.

Common Questions about the 21000-34-05-30-050-03-02

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

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

Q: Is this housing suitable for hazardous areas?

A: Yes, the 21000-34-05-30-050-03-02 supports selectable hazardous area approvals and is rated explosion-proof by CSA when ordered with appropriate options.

Q: What materials are used in the housing?

A: The housing has an aluminum body with a 304 stainless steel sleeve, providing strength and corrosion resistance.

Q: What is the mounting thread size?

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

Q: What is the typical weight of this assembly?

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

Product Support & Availability

The 21000-34-05-30-050-03-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for ordering assistance or technical questions. We provide a 12-month factory warranty on all new original items.