21000-34-10-00-095-04-02 | Bently Nevada 8 mm Probe Housing Assembly

Introduction to the 21000-34-10-00-095-04-02

When external mounting of proximity probes demands robust protection and precise positioning, the 21000-34-10-00-095-04-02 from Bently Nevada delivers a reliable solution. This 21000 series housing assembly integrates a 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals, and a 1.0 m (39 in) probe cable. Its aluminum body with a 304 stainless steel sleeve ensures durability in demanding industrial environments.

Key Features and Technical Specs of the 21000-34-10-00-095-04-02

• Probe Option: 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals.
• Probe Cable Length: 1.0 m (39 in).
• Standoff Adapter: None (00 option).
• Probe Penetration: 9.5 in (095 option).
• Fitting Option: One 3/4-14 NPT plug only (04 option).
• Mounting Thread: 3/4-14 NPT (option -02).
• Material: Aluminum body with 304 stainless steel sleeve.
• Weight: 1.1 kg (2.4 lb) typical, without fittings.
• Maximum (C) + (D) with visible probe (P/N and S/N): 17.0 in (43.18 cm).
• Maximum (C) + (D) Dimension: 32.9 in (83.5 cm).

One distinctive spec is the 9.5 in probe penetration, which allows the sensor to reach deep into the measurement zone while the housing maintains a sealed environment. This feature is critical for applications requiring consistent clearance between the probe tip and the target surface.

Applications and Use Cases for the 21000-34-10-00-095-04-02

This housing assembly is designed for externally mounted proximity probes in rotating machinery monitoring. It is fully compliant with the American Petroleum Institute's (API) 670 Standard, making it suitable for compressors, turbines, pumps, and other critical assets. The CSA Type 4 enclosure rating provides protection against dust and water ingress, while the explosion-proof rating (CA versions) enables use in hazardous areas. For engineers upgrading from older probe housings, the 21000-34-10-00-095-04-02 offers a drop-in replacement with enhanced sealing and connector protection.

Installation and Setup Guide

Mount the housing using the 3/4-14 NPT thread option (-02) into a suitable conduit or mounting hole. Ensure the probe cable length of 1.0 m is sufficient for the routing path. The standoff adapter is not required for this configuration (00 option). Tighten the fitting option (04) — one 3/4-14 NPT plug — to seal the unused port. Verify the probe penetration of 9.5 in aligns with the target clearance per the machinery manufacturer's specifications.

Maintenance and Reliability Tips

Regularly inspect the O-rings and thread seal for wear to maintain the enclosure's integrity. The aluminum body and stainless steel sleeve resist corrosion in harsh environments. Periodically verify the connector protector is secure and the probe cable is free from abrasion. Following the manufacturer's maintenance schedule helps extend service life and reduce unplanned downtime.

Compatibility and Integration

The 21000-34-10-00-095-04-02 is compatible with Bently Nevada monitoring systems that accept 3300 XL 8 mm proximity probes. It integrates with vibration monitoring racks, such as the 3500 series, and supports both standard and intrinsically safe hazardous area installations. The CSA Type 4 enclosure and explosion-proof rating (CA versions) ensure compliance with global safety standards.

FAQs about the 21000-34-10-00-095-04-02

What is the probe cable length of the 21000-34-10-00-095-04-02?

The probe cable length is 1.0 m (39 in).

What mounting thread does the 21000-34-10-00-095-04-02 use?

It uses a 3/4-14 NPT thread (option -02).

Is the 21000-34-10-00-095-04-02 suitable for hazardous areas?

Yes, it supports selectable hazardous area approvals with the 3300 XL 8 mm probe and CA versions are CSA explosion-proof rated.

What is the weight of the 21000-34-10-00-095-04-02?

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

What material is the housing made of?

The body is aluminum with a 304 stainless steel sleeve.

Product Support and Availability

The 21000-34-10-00-095-04-02 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing, lead times, and technical support. We are your trusted source for Bently Nevada industrial automation parts.