21000-34-05-15-050-03-02 | Bently Nevada 0.5m Cable Proximity Probe Housing Assembly

Introduction to the Bently Nevada 21000-34-05-15-050-03-02

When unplanned downtime threatens your rotating machinery, the 21000-34-05-15-050-03-02 from Bently Nevada provides a robust solution. This proximity probe housing assembly is engineered for continuous vibration monitoring in demanding industrial environments. With a 0.5m (20in) probe cable and 5.0in probe penetration, it offers precise measurement capabilities that help prevent costly failures.

Part of the 21000 series, this assembly combines an aluminum body with a 304 stainless steel sleeve for durability. It supports selectable hazardous area approvals, making it suitable for explosive atmospheres. By enabling early detection of shaft vibration and position changes, the 21000-34-05-15-050-03-02 reduces maintenance expenses and extends equipment life.

Key Features and Technical Specifications of the 21000-34-05-15-050-03-02

• Probe Cable Length: 0.5m (20in) – minimizes signal loss and simplifies routing.
• Standoff Adapter: 1.5in – ensures correct probe positioning for accurate readings.
• Probe Penetration: 5.0in – accommodates varying housing depths.
• Mounting Thread: 3/4-14 NPT – standard fitting for secure installation.
• Material: Aluminum body with 304 stainless steel sleeve – resists corrosion and wear.
• Weight: 1.1kg (2.4lb) typical, without fittings – lightweight for easy handling.
• Temperature Range: -51°C to +177°C (-60°F to +351°F) – operates in extreme conditions.
• CSA Type 4 Enclosure: Explosion-proof rating for hazardous areas.

One distinctive spec is the 0.5m probe cable length. This short cable reduces signal degradation and simplifies installation in tight spaces, lowering labor costs and improving measurement reliability.

Applications and Use Cases for the 21000-34-05-15-050-03-02

In petrochemical plants, the 21000-34-05-15-050-03-02 monitors compressor shaft vibration to prevent catastrophic failures. Similarly, power generation facilities use it for turbine overspeed protection. The assembly’s CSA Type 4 rating ensures safe operation in gas processing areas. By integrating this housing, engineers reduce unplanned downtime and achieve a faster return on investment through predictive maintenance.

Installation and Setup Guide

Mount the 21000-34-05-15-050-03-02 using the 3/4-14 NPT thread for a secure fit. The included fitting kit contains one 3/4-14 NPT plug, one 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. Ensure the standoff adapter length of 1.5in is correctly set before tightening. For hazardous areas, follow local electrical codes and use approved conduit connections.

Maintenance and Reliability Tips

Regular inspection of the O-rings and thread seal prevents moisture ingress, extending service life. The aluminum and stainless steel construction resists corrosion, reducing replacement frequency. For cost savings, schedule annual checks of the probe cable and connector. Avoid using solvents on the housing; instead, wipe with a dry cloth. Always refer to the manufacturer’s manual for detailed procedures.

Compatibility and Integration

The 21000-34-05-15-050-03-02 works with Bently Nevada 3300 XL 8mm and 11mm probes, as well as 3300 NSv probes. It integrates with most vibration monitoring systems that accept standard proximity probe inputs. The CSA Type 4 enclosure ensures compatibility with explosion-proof installations. For seamless integration, verify the probe type and cable length match your system requirements.

Troubleshooting Common Issues

If readings are erratic, check the probe cable for damage or loose connections. The 0.5m cable is sensitive to kinking; ensure it is routed without sharp bends. For no signal, verify the standoff adapter is set to 1.5in. If the housing fails to seal, inspect the O-rings and thread seal for wear. Replace any damaged components promptly to avoid downtime.

Frequently Asked Questions about the 21000-34-05-15-050-03-02

Q: What is the probe cable length for the 21000-34-05-15-050-03-02?

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

Q: What temperature range can this housing assembly withstand?

A: It operates and stores from -51°C to +177°C (-60°F to +351°F) for 3300 XL 8mm and 11mm probes.

Q: Is the 21000-34-05-15-050-03-02 suitable for hazardous areas?

A: Yes, it is CSA Type 4 rated explosion-proof and supports intrinsically safe applications with selectable approvals.

Q: What mounting thread does this model use?

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

Q: What materials are used in the construction?

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

Product Support and Availability

The 21000-34-05-15-050-03-02 is in stock and ready to ship from Petro Auto Tech. Each unit is new and original in factory packing with a 12-month warranty. For lifecycle status or bulk orders, contact Petro Auto Tech directly.