Bently Nevada 24701 Proximity Probe Housing Assembly for Vibration Monitoring

Overview of the Bently Nevada 24701 Housing Assembly

For vibration monitoring on rotating machinery, the Bently Nevada 24701 proximity probe housing assembly provides robust protection.
This 24701-28-10-00-040-04-02 model includes a 3300 XL 8mm reverse mount probe with approval options.
The housing assembly protects the sensitive probe in harsh industrial environments.
A dome cover screws into the housing body to seal the internal components.
Threaded ports allow convenient conduit connections for field wiring.
From compressors to turbines, the Bently Nevada 24701 suits critical machine monitoring applications.

Model and Suffix Code Breakdown

The 24701-28-10-00-040-04-02 follows a complete suffix code structure for precise configuration.

Technical Specifications of the 24701-28-10-00-040-04-02

Below are the complete technical parameters for this probe housing assembly.

Materials and Construction Quality

The Bently Nevada 24701 uses 303 stainless steel for the housing body material.
For the probe sleeve, 304 stainless steel provides additional corrosion resistance.
This dual-material construction ensures long service life in harsh environments.
The dome cover screws directly into the housing body for secure closure.
Threaded ports accept conduit fittings for various installation requirements.
The 24701-28-10-00-040-04-02 includes O-rings for environmental sealing.
A thread seal prevents leakage through the mounting threads.
Consequently, the assembly maintains internal dryness even in wet conditions.

Probe Penetration and Dimensional Specifications

The 24701-28-10-00-040-04-02 provides 4 inches of probe penetration (040 suffix code).
This shorter penetration suits applications with limited clearance or shallower mounting holes.
Maximum (C)+(D) dimension with visible probe measures 17.0 inches (43.18 mm).
Overall, the maximum (C)+(D) dimension reaches 29.2 inches (74.2 mm) for the full assembly.
The probe cable length measures exactly 1.0 meter (39 inches) for flexibility.
These dimensions help you plan the mounting location accurately.
Always verify clearance before installing the Bently Nevada 24701 assembly.

Fittings Option and Conduit Connections

The -04 fittings option on the 24701-28-10-00-040-04-02 includes one 3/4-14 NPT plug only.
This configuration provides a single plugged port for minimal accessory needs.
For applications requiring conduit connections, you can replace the plug with standard fittings.
The 3/4-14 NPT thread size matches common industrial conduit systems.
Threaded ports give you the flexibility to add conduit fittings as needed.
The Bently Nevada 24701 housing includes multiple ports for various wiring routes.
Thus, you can choose the most convenient conduit entry direction.

Mounting Thread and Installation Interface

The -02 mounting thread option on the 24701-28-10-00-040-04-02 specifies 3/4-14 NPT.
This standard thread size fits most industrial machine mounting holes.
Apply thread sealant to the 3/4-14 NPT threads before installation.
Proper sealing prevents leakage of process fluids or environmental moisture.
Mount the Bently Nevada 24701 securely using the 3/4-14 NPT connection.
For the mounting torque, apply the manufacturer's recommended value.
The 303 stainless steel threads resist galling during installation and removal.

Assembly Components Included

The Bently Nevada 24701 proximity probe housing assembly includes these components:

• One dome cover that screws into the housing body

• Threaded ports for conduit connections (with one 3/4-14 NPT plug for -04)

• One probe sleeve of 4-inch penetration length

• O-rings for environmental sealing

• One reverse mount 3300 XL 8mm proximity probe

• One thread seal for leak prevention

• Optional conduit fittings (not included with -04 option)

• Optional standoff adapter (not included with 00 option)

The 24701-28-10-00-040-04-02 ships without optional conduit fittings or standoff adapter.
All components arrive in original factory packaging ready for installation.

Compatibility with 3300 XL Monitoring Systems

The Bently Nevada 24701 houses a 3300 XL 8mm reverse mount probe with approval option.
This probe works seamlessly with standard Bently Nevada proximitors and monitors.
For vibration monitoring, the assembly works with 3300 and 3500 series systems.
The 8mm probe diameter provides excellent linear range for most machines.
From radial vibration to axial position, the 24701-28-10-00-040-04-02 handles both.
The reverse mount design allows installation through the housing for easy servicing.
Thus, you can replace the probe without removing the entire housing assembly.

Installation Guidelines for the 24701 Housing Assembly

Follow these steps to install the Bently Nevada 24701 proximity probe housing assembly correctly.

1. Clean the machine mounting hole threads thoroughly before installation.

2. Apply thread sealant to the 3/4-14 NPT mounting threads.

3. Thread the 24701-28-10-00-040-04-02 into the mounting hole by hand.

4. Tighten the assembly to the recommended torque specification.

5. Remove the 3/4-14 NPT plug if conduit connection is necessary.

6. Install appropriate conduit fittings into the threaded port.

7. Route the probe cable through the conduit to the proximitor.

8. Connect the cable to the monitor or proximitor terminals.

9. Verify the probe gap voltage within the specified range.

10. Secure the dome cover onto the housing body tightly.

Only trained vibration monitoring technicians should install this assembly.

Package Contents for the Bently Nevada 24701

• One Bently Nevada 24701 housing body (303 stainless steel)

• One 304 stainless steel probe sleeve (4-inch penetration)

• One reverse mount 3300 XL 8mm probe with approval option

• One dome cover with O-ring seal

• One 3/4-14 NPT plug (fittings option 04)

• One thread seal for mounting threads

• Additional O-rings for maintenance replacement

• Original factory packaging with certification

Common FAQs About This Bently Nevada 24701 Assembly

Q1: What is the probe penetration on this model?
A1: The 24701-28-10-00-040-04-02 provides 4 inches of probe penetration (040 suffix). This shorter penetration suits applications with limited clearance.

Q2: Does this assembly include conduit fittings?
A2: No, the -04 fittings option on 24701-28-10-00-040-04-02 includes only one 3/4-14 NPT plug. You will need to purchase conduit fittings separately.

Q3: What materials protect the housing from corrosion?
A3: The Bently Nevada 24701 uses 303 stainless steel for the housing body. The probe sleeve uses 304 stainless steel for additional corrosion protection.

Q4: Can I use this assembly with 3500 series monitors?
A4: Yes, the 24701-28-10-00-040-04-02 works with both 3300 and 3500 series monitors. The 3300 XL 8mm probe is compatible with both systems.

Q5: What is the maximum (C)+(D) dimension for installation?
A5: The Bently Nevada 24701 has a maximum (C)+(D) dimension of 29.2 inches (74.2 mm). Use this specification to plan your mounting clearance.

Typical Applications for the Bently Nevada 24701

The Bently Nevada 24701 excels in critical machinery vibration monitoring applications.
You can use it for steam turbine radial vibration measurement.
Similarly, the assembly works well for gas turbine axial position monitoring.
For compressor shaft vibration, this housing provides reliable probe protection.
Large motor bearing monitoring benefits from the 3300 XL probe.
The 24701-28-10-00-040-04-02 also suits pump vibration monitoring on slow-speed machines.
In short, any rotating machine requiring proximity probe monitoring fits this assembly.

Ordering and Logistics Information

This Bently Nevada 24701 proximity probe housing assembly ships from our global distribution center.
Original factory packaging protects this precision assembly during transit.
For volume pricing on Bently Nevada 3300 XL products, please contact our team.
Before placing an order, verify your required penetration depth and mounting thread carefully.
For urgent installation needs, we offer express shipping options worldwide.