The Bently Nevada 330851-04-000-020-90-00-00 is a 3300 XL 25 mm Proximity Probe designed for accurate shaft displacement measurement and vibration monitoring on large rotating machinery. Engineered for industrial condition monitoring applications, this probe provides reliable non-contact measurement capability for equipment where continuous operation, machine protection, and maintenance optimization are critical.
As part of the Bently Nevada 3300 XL Proximity Transducer System, the 330851-04-000-020-90-00-00 uses eddy current sensing technology to detect shaft movement and position changes without mechanical contact. Its extended cable configuration allows flexible installation on large machines where the sensing point is located at a greater distance from the monitoring cabinet.
With proven measurement stability, rugged industrial construction, and compatibility with Bently Nevada monitoring solutions, this proximity probe is well suited for power plants, petrochemical facilities, oil and gas equipment, and other heavy industrial applications.
Technical Specifications and Product Details
The Bently Nevada 330851-04-000-020-90-00-00 is designed for integration with compatible 3300 XL Proximitor Sensors to create a complete vibration and shaft position monitoring system. The probe configuration features a 25 mm sensing body, smooth side-exit case design, 20 mm case length, and a 9 metre cable option for installation flexibility.
| Specification | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 330851-04-000-020-90-00-00 |
| Product Type | 3300 XL 25 mm Proximity Probe |
| Sensor Technology | Eddy Current Proximity Sensing |
| Probe Diameter | 25 mm |
| Case Style | Smooth Case, Side Exit |
| Thread / Mounting Style | M30 × 2 Thread |
| Unthreaded Length | 0 mm |
| Case Length | 20 mm |
| Cable Length | 9 Metres |
| Armor Option | No Armor |
| Approval Option | No Agency Approvals |
| Measurement Function | Shaft Displacement and Vibration Monitoring |
| System Compatibility | 3300 XL Proximitor Sensor System |
| Dimensions | Approx. 25 mm Diameter × 20 mm Case Length + 9 m Cable |
| Weight | Approx. 2 kg Shipping Weight |
The long cable configuration provides additional flexibility when installing monitoring systems on large turbines, compressors, and other rotating equipment where physical separation between the probe and electronics is required.
Recommended Related Models and Compatible Components
The 330851-04-000-020-90-00-00 works with a range of Bently Nevada monitoring components to build complete machinery protection systems.
| Model | Product Type | Application |
|---|---|---|
| 330850 Series | 3300 XL 25 mm Proximitor Sensor | Signal processing and monitoring |
| 330851-04-000-020-10-00-00 | 25 mm Proximity Probe | Short cable installation |
| 330851 Series | 3300 XL 25 mm Probe Family | Alternative probe configurations |
| 330854 Series | 25 mm Extension Cable | Extended installation requirements |
| 3500 Series | Machinery Protection System | Advanced vibration monitoring |
These related products allow engineers to configure monitoring solutions based on equipment size, installation distance, and operating environment.
Popular Bently Nevada Models for Machinery Monitoring
Bently Nevada provides a wide selection of industrial monitoring products designed for improving equipment reliability and reducing unexpected downtime.
| Product Series | Product Category | Main Function |
|---|---|---|
| 3300 XL Series | Proximity Transducer System | Shaft displacement and vibration measurement |
| 3500 Series | Machinery Protection Platform | Alarm monitoring and machine protection |
| 1900 Series | Condition Monitoring Devices | General vibration analysis |
| Velomitor Series | Velocity Sensors | Casing vibration measurement |
| Keyphasor Systems | Phase Reference Sensors | Rotor speed and position tracking |
The 330851-04-000-020-90-00-00 provides a dependable sensing solution for facilities that require continuous monitoring of high-value rotating assets.
