21000-28-10-00-217-04-02 | Bently Nevada 21.7 in Probe Housing Assembly

Introduction to the 21000-28-10-00-217-04-02

When reliable vibration monitoring is critical, the 21000-28-10-00-217-04-02 from Bently Nevada delivers a robust solution. This proximity probe housing assembly is part of the 21000 series, designed for harsh industrial environments. It features an aluminum body with a 304 stainless steel sleeve for durability. The assembly includes a 3300 XL 8 mm probe with multiple approvals. Engineers can trust this unit for precise measurement in rotating machinery.

Key Features and Technical Specs of the 21000-28-10-00-217-04-02

• Maximum Cable Length: 1.0 m (39 inches) – ensures flexible installation.
• Probe Penetration: 21.7 inches – provides deep reach into machinery.
• Weight: 1.1 kg (2.4 lb) typical, without fittings – lightweight for easy handling.
• Thread: 3/4-14 NPT (Standard) – compatible with common mounting points.
• Fittings: 3/4-14 NPT plug fitting (standard) with explosion-proof options available.
• CSA Certification: Type 4 enclosure, explosion-proof when ordered with specific options.
• Material: Aluminum body with a 304 stainless steel sleeve – resists corrosion and wear.

The distinctive 21.7-inch probe penetration sets this model apart, enabling monitoring of deep bearing housings or long shaft spans. This spec directly supports predictive maintenance strategies.

Applications and Use Cases for the 21000-28-10-00-217-04-02

This housing assembly excels in turbomachinery, compressors, and large pumps. For example, in a steam turbine application, the 21.7-inch probe penetration allows accurate shaft vibration measurement without additional adapters. Moreover, its CSA Type 4 enclosure rating makes it suitable for wet or dusty environments. Consequently, it reduces unplanned downtime by providing early fault detection.

Installation and Setup Guide

Mount the 21000-28-10-00-217-04-02 using the standard 3/4-14 NPT thread. Ensure the probe tip is properly positioned per Bently Nevada guidelines. The 1.0-meter cable offers enough length for typical junction box connections. For explosion-proof installations, use the optional explosion-proof fittings. Always torque fittings to manufacturer specifications to maintain seal integrity.

Maintenance and Reliability Tips

Inspect the housing assembly periodically for signs of wear or corrosion. The 304 stainless steel sleeve resists rust, but check the cable jacket for damage. Clean the probe tip with a soft cloth if debris accumulates. By following a routine inspection schedule, you extend service life and maintain measurement accuracy. This proactive approach aligns with cost-benefit goals by minimizing replacement costs.

Compatibility and Integration

The 21000-28-10-00-217-04-02 integrates with Bently Nevada monitoring systems that accept 3300 XL 8 mm probes. It works with standard 3/4-14 NPT mounting hardware. For seamless data acquisition, pair it with compatible Bently Nevada monitors or third-party systems using appropriate signal conditioning. Refer to the official datasheet for full compatibility details.

FAQs about the 21000-28-10-00-217-04-02

What is the probe penetration of the 21000-28-10-00-217-04-02?

The probe penetration is 21.7 inches, as indicated by the -217 option code.

What cable length does this model include?

It includes a 1.0-meter (39-inch) cable, specified by the -10 option.

Is the 21000-28-10-00-217-04-02 explosion-proof?

It can be explosion-proof when ordered with specific options, as per CSA Type 4 enclosure certification.

What thread size does the housing use?

It uses a standard 3/4-14 NPT thread, with a 3/4-14 NPT plug fitting included.

What material is the housing made of?

The body is aluminum with a 304 stainless steel sleeve for durability.

Product Support and Availability

The 21000-28-10-00-217-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead time. We provide fast delivery and expert support for your industrial automation needs.