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The Bently Nevada 24701-28-05-65-105-03-02 is a Proximity Probe Housing Assembly used to mechanically mount and position a proximity probe within a rotating machinery monitoring installation. It belongs to the Bently Nevada 24701 housing family and forms part of the mechanical interface between the machine structure and the proximity sensing equipment.
The housing assembly does not perform the electrical measurement itself. Instead, it provides a controlled mounting arrangement for the associated proximity probe, helping maintain the probe’s position and orientation relative to the monitored shaft or other conductive machine target.
In a typical machinery monitoring installation, the housing is mounted to the machine structure while the proximity probe is installed through the housing. The probe is then connected through the appropriate extension cable to a Proximitor Sensor and the downstream monitoring system. This arrangement is used where a stable and repeatable mechanical installation is required for shaft position or relative movement monitoring.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Product Model | 24701-28-05-65-105-03-02 |
| Product Type | Proximity Probe Housing Assembly |
| Product Family | 24701 Series |
| System Application | Proximity Probe Installation |
| Primary Function | Mechanical Probe Support and Positioning |
| System Role | Probe Mounting / Mechanical Interface |
| Measurement System | Bently Nevada Machinery Monitoring System |
| Associated Device | Proximity Probe |
| Installation | Rotating Machinery Monitoring Equipment |
| Mechanical Function | Secures and positions the proximity probe |
| Application | Shaft Position and Machinery Condition Monitoring |
| Housing Body Diameter | 78.2 mm |
| Weight | 1.8 kg |
The 24701-28-05-65-105-03-02 functions as a mechanical interface rather than an active measurement device. Its primary purpose is to hold the associated proximity probe in the required position relative to the monitored machine target.
The proximity probe installed in the housing uses a non-contact sensing principle to detect changes in the relationship between the probe and a conductive target. The probe signal is then transferred through the associated extension cable to the Proximitor Sensor for signal conditioning.
Machine Structure → Probe Housing Assembly → Proximity Probe → Extension Cable → Proximitor Sensor → Monitoring System
During operation, the housing remains mechanically fixed while the monitored shaft or target moves relative to the probe. Maintaining the mechanical integrity of the housing is therefore important because unwanted movement or displacement of the mounting arrangement can change the probe-to-target relationship.
The housing assembly should consequently be considered part of the complete measurement installation. Proper mounting, probe positioning, and inspection of the surrounding mechanical interfaces are necessary when commissioning or servicing the monitoring channel.
The 24701-28-05-65-105-03-02 occupies the mechanical mounting layer of a Bently Nevada proximity monitoring architecture. It supports the sensing element while the probe, Proximitor Sensor, and monitoring equipment perform the electrical measurement and monitoring functions.
| System Layer | Typical Component | Function |
|---|---|---|
| Machinery | Turbine / Compressor / Pump / Motor | Provides the rotating target being monitored |
| Mechanical Mounting | 24701 Proximity Probe Housing Assembly | Supports and positions the proximity probe |
| Sensing | Bently Nevada Proximity Probe | Detects relative movement of the conductive target |
| Signal Connection | Extension Cable | Transfers the probe signal to the Proximitor Sensor |
| Signal Conditioning | Proximitor Sensor | Conditions the proximity measurement signal |
| Monitoring | Machinery Monitoring System | Receives and evaluates the measurement |
| Protection | Machinery Protection System | Uses monitored information for equipment protection functions |
| Application | Housing Assembly Role |
|---|---|
| Steam Turbines | Provides mechanical support for proximity probe installations |
| Gas Turbines | Maintains the mounting arrangement for shaft monitoring probes |
| Compressors | Supports proximity sensing equipment used for rotating shaft monitoring |
| Pumps | Provides a fixed mounting interface for proximity measurement equipment |
| Generators | Supports proximity probe installations within machinery monitoring systems |
| Industrial Motors | Provides mechanical positioning for non-contact sensing equipment |
| Machinery Protection Systems | Forms part of the physical installation of a proximity monitoring channel |
| Equipment Maintenance | Used when repairing or replacing mechanical probe mounting hardware |
| Component | Function in the System |
|---|---|
| Bently Nevada Proximity Probe | Performs non-contact sensing of the monitored machine target |
| Proximitor Sensor | Provides signal conditioning for the proximity probe |
| Proximity Probe Extension Cable | Connects the probe to the Proximitor Sensor |
| Machinery Monitoring System | Receives and evaluates the conditioned proximity signal |
| Machinery Protection System | Uses monitoring information for equipment protection |
| Probe Mounting Hardware | Secures the housing assembly to the machine structure |
| Rotating Shaft | Provides the conductive target used for proximity measurement |
| Model | Product Type | Typical Relationship |
|---|---|---|
| Bently Nevada 24701 Series | Proximity Probe Housing Assembly | Related housing assembly family |
| Bently Nevada 3300 XL Proximity Probe Series | Proximity Probe | Associated non-contact sensing component |
| Bently Nevada 3300 XL Extension Cable Series | Proximity Probe Extension Cable | Associated signal connection component |
| Bently Nevada 3300 XL Proximitor Sensor Series | Proximity Signal Conditioning Component | Associated electronics for the proximity measurement channel |
| Bently Nevada 3500 Series Monitoring Modules | Machinery Monitoring Module | Related monitoring hardware for machinery condition and protection applications |
The 24701-28-05-65-105-03-02 is a Proximity Probe Housing Assembly used to mechanically support and position a proximity probe within a rotating machinery monitoring installation. It provides the mounting interface rather than performing the proximity measurement.
No. The housing is a mechanical component. The associated proximity probe performs the sensing function, while the Proximitor Sensor provides signal conditioning and the monitoring system evaluates the resulting measurement.
The housing determines the physical position of the proximity probe relative to the monitored target. Mechanical displacement, looseness, or incorrect installation can change this relationship and consequently affect the measurement channel.
The housing should be checked for mechanical damage, corrosion, looseness, deformation, and changes in its mounting position. The associated probe, mounting hardware, extension cable, and Proximitor Sensor should also be considered when troubleshooting an abnormal proximity measurement.