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The Bently Nevada 21000-16-05-00-080-04-02 is a Proximity Probe Housing Assembly used in machinery condition monitoring installations. It provides a mechanical housing arrangement for a proximity probe, helping position and protect the sensing assembly at the measurement point on rotating equipment.
In a typical Bently Nevada monitoring system, the proximity probe works with a target surface on a rotating shaft to detect changes in shaft position, vibration, or related mechanical behavior. The housing assembly supports the physical installation of the probe so that the sensing element can maintain the required relationship with the monitored machine.
This type of assembly is particularly relevant to machinery such as turbines, compressors, pumps, motors, and other rotating equipment where non-contact shaft measurements are required. Proper probe mounting is important because the mechanical position of the sensing assembly directly affects the quality and consistency of the measurement.
The 21000-16-05-00-080-04-02 should therefore be treated as part of the complete proximity measurement installation rather than as an independent monitoring instrument. During replacement, maintenance personnel should consider the probe, housing, target surface, mounting arrangement, and associated monitoring electronics as one measurement chain.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Model | 21000-16-05-00-080-04-02 |
| Product Type | Proximity Probe Housing Assembly |
| Application | Proximity probe installation for machinery monitoring |
| System Role | Probe mounting and mechanical protection |
| Measurement System | Bently Nevada machinery condition monitoring system |
| Housing Function | Provides mechanical support and positioning for the proximity probe |
| Housing Body Diameter | 83.3 mm |
| Weight | 1.1 kg |
The housing assembly establishes the mechanical position of the proximity probe relative to the monitored machine. The probe itself generates an electrical signal in response to changes in the distance between its sensing tip and the conductive target surface, typically a rotating shaft.
The housing keeps the probe mechanically supported at the intended measurement location. The resulting probe signal is then transmitted through the associated extension cable and signal-conditioning electronics to the machinery monitoring system.
Rotating Shaft / Target → Proximity Probe → Probe Housing Assembly → Signal Conditioning → Machinery Monitoring System
The housing does not perform the electrical measurement or vibration analysis itself. Its contribution is mechanical: maintaining the probe installation in the required position so that the sensing system can operate as intended.
The 21000-16-05-00-080-04-02 occupies the mechanical installation layer of a proximity monitoring architecture. It supports the physical placement of the probe, while the probe, signal-conditioning hardware, and monitoring system perform the sensing and analysis functions.
| System Element | Function |
|---|---|
| 21000-16-05-00-080-04-02 | Provides housing and mechanical support for the proximity probe |
| Proximity Probe | Detects changes in the distance between the probe tip and shaft target |
| Extension Cable | Carries the probe signal between the probe and associated electronics |
| Proximitor / Signal Conditioner | Supplies and conditions the probe signal for monitoring |
| Monitoring System | Processes machinery condition information and generates monitoring outputs |
| Rotating Shaft | Provides the physical target used by the proximity measurement |
| Application | Typical Use |
|---|---|
| Steam Turbines | Supports proximity probe installations for shaft vibration and position monitoring |
| Gas Turbines | Used as part of rotating-shaft monitoring arrangements |
| Compressors | Supports non-contact shaft measurement installations |
| Pumps | Provides mechanical support for proximity sensing at rotating machinery |
| Motors | Used where shaft condition or position monitoring is required |
| Industrial Machinery | Supports permanent machinery protection and condition monitoring systems |
| Component | Function |
|---|---|
| Bently Nevada Proximity Probe | Provides non-contact measurement of shaft movement or position |
| Probe Extension Cable | Connects the probe with the associated signal-conditioning hardware |
| Proximitor Sensor | Provides probe excitation and converts the probe response into a usable monitoring signal |
| Machinery Monitoring System | Receives and processes proximity measurement signals |
| Shaft Target | Provides the conductive rotating surface used by the proximity probe |
| Probe Mounting Hardware | Secures the housing and probe assembly at the machine measurement location |
| Model | Product Type | Typical Application |
|---|---|---|
| Bently Nevada 21000-16-05-00-080-04-02 | Proximity Probe Housing Assembly | Proximity probe mounting |
| Bently Nevada 3300 XL 8 mm Proximity Probe | Proximity Probe | Shaft vibration and position measurement |
| Bently Nevada 3300 XL Proximitor Sensor | Proximitor Sensor | Proximity signal conditioning |
| Bently Nevada 3500 Series | Machinery Monitoring System | Continuous machinery condition monitoring |
It is a Proximity Probe Housing Assembly that provides mechanical support and positioning for a proximity probe used in machinery condition monitoring.
No. The housing assembly itself does not perform the electrical measurement. The proximity probe installed in the housing detects changes in the target distance, while the associated electronics condition and process the resulting signal.
The housing establishes the physical location of the probe relative to the monitored shaft. Incorrect positioning can affect the probe-to-target relationship and consequently influence the quality of the measurement signal.
The probe compatibility, mounting condition, probe position, cable routing, mechanical security, and complete monitoring channel should be checked. After installation, the monitoring signal should be verified before the machinery is returned to normal operation.