Product Description

The 24701-28-05-20-024-03-02 is a ruggedized Proximity Probe Housing Assembly engineered by Bently Nevada for high-precision machinery protection. This assembly features a 303 stainless steel body and 304 stainless steel sleeve, integrating a reverse-mount 3300 XL 8mm probe. Designed for harsh industrial environments, the 24701-28-05-20-024-03-02 provides an explosion-proof enclosure with NPT conduit fittings and customizable penetration depths, ensuring stable vibration monitoring and protection against corrosive contaminants.

Configuration Breakdown & Suffix Logic

The 24701-28-05-20-024-03-02 follows a precise modular hierarchy. Each segment defines a critical mechanical constraint:
24701 (Base Model: Proximity Probe Housing)
└── -28 (Probe Option)
│ └── 3300 XL 8mm Reverse Mount / Approval Option
└── -05 (Probe Cable Length)
│ └── 20 inches (0.5 meters)
└── -20 (Standoff Adapter Length)
│ └── 2.0 inch Fixed Extension
└── -024 (Probe Penetration)
│ └── 2.4 inch Depth into Machine Case
└── -03 (Fittings Option)
│ └── 3/4-14 NPT Plug & Reducer Kit
│ └── Triple Grommet Cable Seal Grip
└── -02 (Mounting Thread)
└── 3/4-14 NPT Primary Interface

Mechanical & Material Data

• Brand: Bently Nevada
• Full Model: 24701-28-05-20-024-03-02
• Body Material: 303 Stainless Steel
• Sleeve Material: 304 Stainless Steel
• Total Assembly Mass: 1.8 kg (4.1 lb) typical
• Probe Mounting: Reverse Mount Configuration
• Max (C)+(D) Dimension: 13.5 inches (344.3 mm)
• Conduit Interface: 3/4-14 NPT and 1/2-14 NPT Reducer
• Environmental Sealing: Integrated O-rings and Thread Seals

Core Features

• Screw-in dome cover provides a weather-tight seal for internal connectors.
• Adjustable probe sleeve enables precise air-gap settings during installation.
• Explosion-proof housing ports support safe wiring in hazardous environments.
• Comprehensive grommet kit included for various cable diameters (1/8″ to 3/8″).
• The 24701-28-05-20-024-03-02 is factory-shipped with all necessary O-rings.

Logistics & Service Policy

• Warranty Period: 12 Months Comprehensive Warranty
• Shipping Methods: FedEx, UPS, DHL
• Condition: New & Original in Factory Sealed Packing
• Handling: Fast global dispatch with industrial-grade protection

Professional Engineering FAQ

How do I verify the exact probe penetration for this assembly?

The “-024” suffix specifies a 2.4-inch penetration. Always measure from the mounting face of the standoff adapter to the probe tip to ensure the air gap is within the 3300 XL linear range.

Can the probe’s serial number be read after installation?

With the 0.5m cable option (-05), the serial number is usually not visible within the 13.5-inch assembly. It is critical to record all P/N and S/N data from the factory tag before final mounting.

What if my site uses 1/2-inch conduit instead of 3/4-inch?

This 24701-28-05-20-024-03-02 includes the -03 fitting kit, which provides a 3/4-14 to 1/2-14 NPT reducer, allowing easy connection to 1/2-inch systems