31000-28-10-00-114-03-02 | Bently Nevada 11.4 in 31000 Proximity Probe Housing

Introduction to the Bently Nevada 31000-28-10-00-114-03-02

When you need dependable protection for your 3300 XL 8 mm proximity probe, the 31000-28-10-00-114-03-02 from Bently Nevada is a robust choice. This 31000 series housing is engineered to shield the probe in demanding industrial environments. It combines a durable glass-reinforced PPS thermoplastic body with stainless steel hardware, ensuring long-term performance. Consequently, it helps maintain accurate vibration and position measurements, which are critical for machinery health monitoring.

Key Features and Technical Specifications

The 31000-28-10-00-114-03-02 is designed with specific options to match your application. It includes a 3300 XL 8 mm probe with connector, a 1.0 m (39 in) cable, and an 11.4 in probe penetration. The housing offers a 3/4-14 NPT mounting thread and comes with two plugs, one 3/4-14 NPT fitting, a reducer, and cable seal grips for various cable sizes. Its temperature rating spans from -51°C to +105°C (-60°F to +221°F), and it weighs 1.2 kg (2.6 lb).

• Probe Option: 3300 XL 8 mm probe with connector
• Cable Length: 1.0 m (39 in)
• Probe Penetration: 11.4 in
• Mounting Thread: 3/4-14 NPT
• Housing Material: Glass-reinforced PPS thermoplastic with conductive fibers
• Sleeve Material: AISI 304 stainless steel
• Outer Sleeve & Screws: AISI 303 stainless steel
• O-Ring Material: Neoprene®
• Temperature Rating: -51°C to +105°C
• Weight: 1.2 kg

One standout feature is the housing’s impact strength. It is certified by BASEEFA to withstand two separate 4 Joule impacts at extreme temperatures, and CSA verified 7 Joule impact at room temperature. This resilience makes it suitable for harsh environments where physical shocks may occur.

Applications and Use Cases

This housing is ideal for turbomachinery, pumps, compressors, and other rotating equipment where proximity probes monitor shaft vibration and position. Because it is rated Type 4X and IP66, it resists hose-directed water and dust ingress, making it suitable for outdoor or washdown areas. Furthermore, its stainless steel components resist corrosion, so it performs well in chemical or marine settings. For these reasons, the 31000-28-10-00-114-03-02 is a versatile solution for continuous process industries.

Installation and Setup

When installing the 31000-28-10-00-114-03-02, ensure the mounting thread (3/4-14 NPT) is clean and properly sealed. The housing includes cable seal grips for cable diameters from 1/8 to 3/8 inches, so select the appropriate grommet for your cable. Tighten the retaining nut to the recommended torque of 29.4 N·m (260 in·lb) to maintain a secure seal. Additionally, verify that the probe penetration depth (11.4 in) matches your machine’s requirements before finalizing the installation.

Maintenance and Reliability

Regular inspection of the housing and its seals is essential to maintain its protective rating. Check the O-rings and cable grips periodically for wear or damage, and replace them if necessary. Because the housing is not designed to resist internal or external pressure, avoid pressurizing the assembly. Also, note that probes are not pressure tested prior to shipment; if you need pressure testing, contact the custom design department. By following these practices, you can extend the service life of the housing and ensure reliable monitoring.

Compatibility and Integration

The 31000-28-10-00-114-03-02 is specifically designed for use with Bently Nevada 3300 XL 8 mm proximity probes. This ensures a precise fit and optimal performance. The housing’s 3/4-14 NPT thread allows integration with standard mounting hardware. It is also compatible with Bently Nevada monitoring systems that accept 3300 XL probe signals. For detailed integration guidance, refer to the official Bently Nevada documentation.

Troubleshooting and Common Issues

If you encounter signal instability, first check the cable connections and ensure the probe is properly seated. Inspect the housing for any physical damage that might compromise the seal. Also, verify that the cable seal grips are tightened correctly to prevent moisture ingress. If the housing is exposed to extreme temperatures, confirm it remains within the -51°C to +105°C range. For persistent issues, consult the Bently Nevada manual or contact Petro Auto Tech for technical support.

FAQ about the 31000-28-10-00-114-03-02

Q: What is the temperature rating of this housing?

A: The housing is rated for -51°C to +105°C (-60°F to +221°F).

Q: What probe does this housing accommodate?

A: It is designed for the 3300 XL 8 mm probe with connector.

Q: What is the mounting thread size?

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

Q: Is the housing suitable for outdoor use?

A: Yes, it has Type 4X and IP66 ratings, making it resistant to water and dust.

Q: What is the weight of the housing?

A: It weighs approximately 1.2 kg (2.6 lb).

Availability and Support

The 31000-28-10-00-114-03-02 is available through Petro Auto Tech. We stock this item and can provide fast shipping. For technical questions or ordering assistance, contact our team. Please verify current lifecycle status and availability with Petro Auto Tech before ordering.