21000-34-05-30-050-04-02 | Bently Nevada 0.5m Cable Proximity Probe Housing Assembly

Introduction to the 21000-34-05-30-050-04-02

When rotating machinery demands precise vibration monitoring, the 21000-34-05-30-050-04-02 from Bently Nevada delivers a robust 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, a 0.5 m (20 in) probe cable, and a 3.0 in standoff adapter. The assembly weighs 1.1 kg (2.4 lb) typical without fittings, making it suitable for industrial environments.

Key Features and Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals.
• Probe Cable Length: 0.5 m (20 in).
• Standoff Adapter: 3.0 in length.
• Probe Penetration: 5.0 in.
• Fitting Option: One 3/4-14 NPT plug only.
• Mounting Thread: 3/4-14 NPT (required if standoff adapter length is not -00).
• Material: Aluminum body with 304 stainless steel sleeve.
• Maximum (C) + (D) Dimension: 13.5 in (34.3 cm) with visible probe P/N and S/N not visible.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.

A distinctive feature is the 0.5 m probe cable, which allows compact installations in tight spaces. This reduces the risk of cable damage and simplifies routing near machinery.

Applications and Use Cases

Engineers often use the 21000-34-05-30-050-04-02 for vibration monitoring on turbines, compressors, and pumps. Its CSA Type 4 enclosure rating ensures protection in harsh environments. The assembly is fully compliant with API 670 Standard for externally mounted proximity probe housings. For intrinsically safe applications, you can pair it with hazardous area approved probes.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread option. Ensure the standoff adapter is correctly sized for your application. The probe cable length of 0.5 m limits placement flexibility, so plan the mounting location accordingly. Use the included 3/4-14 NPT plug for the fitting port. Always follow Bently Nevada's installation guidelines for proper alignment and gap settings.

Maintenance and Reliability

Regular inspection of the housing and probe assembly helps maintain accuracy. Check for signs of wear on the O-rings and thread seal. The aluminum body with stainless steel sleeve resists corrosion in industrial settings. Periodically verify that the connector protector is secure. For optimal reliability, replace the assembly if the probe cable shows damage.

Compatibility and Integration

The 21000-34-05-30-050-04-02 works with Bently Nevada monitoring systems that accept 8 mm proximity probes. It is compatible with the 3300 XL series of probes. The assembly does not include communication protocols, so integration depends on the connected monitoring equipment. For system compatibility, consult the official Bently Nevada documentation.

Frequently Asked Questions

Q: What is the probe cable length for the 21000-34-05-30-050-04-02?

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

Q: What is the standoff adapter length?

A: The standoff adapter length is 3.0 in.

Q: Is the housing suitable for hazardous areas?

A: Yes, the housing is available with CSA explosion-proof ratings when ordered with specific options.

Q: What material is the housing made of?

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

Q: What is the mounting thread option?

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

Product Support and Availability

The 21000-34-05-30-050-04-02 is in stock and ready to ship from Petro Auto Tech. As an industrial automation parts supplier, Petro Auto Tech offers new and original factory-packed units with a 12-month warranty. Contact Petro Auto Tech for current lifecycle status and availability before ordering.