21000-34-05-15-030-03-02 | Bently Nevada 0.5m Cable Proximity Probe Housing Assembly

What Is the 21000-34-05-15-030-03-02?

When reliable vibration monitoring in hazardous environments is critical, the 21000-34-05-15-030-03-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is part of the 21000 series and is designed for externally mounted probes. It includes a 3300 XL 8 mm probe with connector protector, a 0.5 m (20 in) probe cable, and a 1.5 in standoff adapter. The assembly is rated explosion proof by CSA for hazardous areas and meets API 670 standards.

Key Features and Technical Specs

• Probe Option: 3300 XL 8 mm probe with connector protector for selectable hazardous area approvals.
• Probe Cable Length: 0.5 m (20 in) cable provides flexibility for installation.
• Standoff Adapter: 1.5 in adapter ensures proper probe positioning.
• Probe Penetration: 3.0 in penetration depth for accurate measurement.
• Mounting Thread: 3/4-14 NPT for secure installation.
• Material: Aluminum body with 304 stainless steel sleeve for durability.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.
• Maximum (C) + (D) Dimension: 13.5 in (34.3 cm) with visible probe P/N and S/N not visible.

One distinctive spec is the 3.0 in probe penetration, which allows the sensor to reach the target surface reliably, even in tight installations. This enhances measurement accuracy in rotating machinery monitoring.

Real-World Applications

In oil and gas refineries, the 21000-34-05-15-030-03-02 is used to monitor shaft vibration in compressors and turbines. Its CSA Type 4 enclosure rating makes it suitable for outdoor and washdown environments. Additionally, the assembly supports intrinsically safe proximity probes for hazardous area applications, reducing the risk of ignition.

Installation and Setup

Mount the housing using the 3/4-14 NPT thread. Ensure the probe cable length of 0.5 m is adequate for your junction box location. The included fitting kit contains a 3/4-14 NPT plug, a 3/4-14 to 1/2-14 NPT reducer, and a cable seal grip with grommets for cable sizes from 1/8 to 3/8 inches. For explosion-proof installations, order the CA version of the housing with the appropriate options.

Maintenance and Reliability

Regularly inspect the O-rings and thread seal for wear. The aluminum body and stainless steel sleeve resist corrosion in harsh environments. Following the manufacturer's manual ensures long service life and minimizes unplanned downtime.

Frequently Asked Questions

Q: What is the probe cable length on the 21000-34-05-15-030-03-02?

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

Q: Is this housing assembly explosion proof?

A: Yes, when ordered with the CA version and appropriate options (E:00, E:01, E:02, or E:04), the housing is rated explosion proof by CSA.

Q: What material is the housing body made of?

A: The body is aluminum with a 304 stainless steel sleeve.

Q: What is the mounting thread size?

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

Q: What is the weight of the assembly?

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

Product Support and Availability

The 21000-34-05-15-030-03-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for assistance with ordering or technical questions.