Product Overview

The 24701-28-05-00-140-00-02 is a complete proximity probe housing assembly from Bently Nevada. This unit belongs to the trusted 3300 XL series for vibration monitoring. The Bently Nevada 24701 assembly includes a reverse mount proximity probe inside a protective housing. A dome cover screws into the body to protect the internal probe. Threaded ports allow conduit connections for secure field wiring. The 24701-28-05-00-140-00-02 uses a 303 stainless steel body with a 304 stainless steel sleeve. This construction provides excellent corrosion resistance for harsh industrial environments. The assembly ships new and original in factory packaging.

Technical Specifications

The Bently Nevada 24701-28-05-00-140-00-02 offers precise proximity measurement for rotating machinery. Below are the detailed technical parameters.

Model and Suffix Code Breakdown

• Model: 24701 – Proximity Probe Housing Assemblies

• Probe Option with Connector: 28 – 3300 XL 8mm with approval option

• Probe Cable Length Option: 05 = 20 inches (0.5 meters)

• Standoff Adapter: 00 = No standoff adapter

• Probe Penetration: 140 = 14 inches

• Fittings Option: 00 = Without fittings

• Mounting Thread Option: 02 = 3/4-14 NPT

Physical Specifications

• Body Material: 303 stainless steel

• Sleeve Material: 304 stainless steel

• Typical Weight: 1.8 kg (4.1 lb) without fittings

• Probe Cable Length: 0.5 meters (20 inches)

• Maximum (C) + (D) Dimension: 13.5 inches (34.3 mm)

• Probe visibility: P/N and S/N not visible when assembled

Assembly Components

The 24701-28-05-00-140-00-02 includes the following parts:

• A dome cover that screws into the housing body

• Threaded ports for conduit connections

• A probe sleeve of optional length

• O-rings for environmental sealing

• A reverse mount proximity probe

• A thread seal for leak protection

• Optional conduit fittings (not included with 00 option)

• An optional standoff adapter (not included with 00 option)

Key Features

The Bently Nevada 24701 assembly protects the proximity probe in harsh environments. The 3300 XL 8mm probe provides reliable shaft vibration and position measurement. Stainless steel construction resists corrosion in wet or chemical plant areas. The 24701-28-05-00-140-00-02 offers 14 inches of probe penetration for deep mounting applications. The 3/4-14 NPT mounting thread fits standard industrial conduit openings. Threaded ports allow easy connection of rigid or flexible conduit. The dome cover provides access to the probe for inspection or replacement. O-rings prevent moisture and contaminants from entering the housing. The reverse mount probe design simplifies installation in confined spaces.

Installation Guide

Follow these steps to install the 24701-28-05-00-140-00-02 correctly.

1. De-energize the machine and verify zero energy state before installation.

2. Clean the mounting hole threads to accept 3/4-14 NPT fittings.

3. Apply thread sealant to the Bently Nevada 24701 mounting threads.

4. Screw the assembly into the machine housing until snug.

5. Tighten the 24701-28-05-00-140-00-02 to the recommended torque.

6. Connect conduit to the threaded ports for cable protection.

7. Route the 0.5 meter probe cable to the nearby junction box.

8. Remove the dome cover to access the probe for gap setting.

9. Set the initial probe gap according to your target material.

10. Replace the dome cover and tighten to prevent moisture ingress.

Package List

• 1 x 24701-28-05-00-140-00-02 proximity probe housing assembly

• 1 x Dome cover pre-installed on the housing body

• 2 x O-rings for environmental sealing

• 1 x Thread seal for leak protection

• 1 x Installation manual with gap setting instructions

Frequently Asked Questions (FAQ)

1. What type of probe is inside the Bently Nevada 24701 assembly?
The 24701-28-05-00-140-00-02 contains a 3300 XL 8mm reverse mount proximity probe. This probe is designed for shaft vibration and position measurement.

2. Can I change the cable length on this housing assembly?
No, the Bently Nevada 24701 comes with a fixed 0.5 meter probe cable. The 05 suffix code specifies this length at the time of manufacture.

3. What is the purpose of the dome cover on this assembly?
The dome cover on the 24701-28-05-00-140-00-02 provides access to the internal probe. You remove this cover to set the probe gap during installation.

4. Is this housing assembly suitable for hazardous area installation?
The Bently Nevada 24701 with suffix 28 includes approval options for hazardous areas. Please verify your specific approval requirements before ordering.

5. Why does my assembly not include conduit fittings or standoff adapter?
The 24701-28-05-00-140-00-02 has suffix 00 for both fittings and standoff adapter. This means these items are not included in your specific configuration.