The Bently Nevada 330780-91-RU is a 3300 XL 11 mm Proximitor Sensor designed for high-performance vibration monitoring and shaft position measurement applications. Developed for demanding industrial environments, this sensor provides accurate displacement measurement and reliable condition monitoring for critical rotating machinery.
As part of the trusted 3300 XL proximity transducer family, the 330780-91-RU combines advanced eddy current sensing technology with robust industrial construction. It is engineered to help operators and maintenance teams detect machine condition changes, improve predictive maintenance strategies, and reduce unexpected equipment downtime.
With its 9.0 metre system configuration and DIN rail mounting design, the 330780-91-RU is well suited for integration into machinery protection systems used in power generation, oil and gas, petrochemical, and heavy industrial applications.
Technical Specifications and Engineering Information
The Bently Nevada 330780-91-RU delivers stable measurement performance for applications requiring continuous monitoring of rotating shafts. Its compact sensor design allows efficient installation while maintaining the accuracy required for machinery protection systems.
| Specification | Details |
|---|---|
| Manufacturer | Bently Nevada |
| Model Number | 330780-91-RU |
| Product Type | 3300 XL 11 mm Proximitor Sensor |
| Sensor Technology | Eddy Current Proximity Measurement |
| System Length | 9.0 metres (29.5 ft) |
| Mounting Type | DIN Rail Mount |
| Probe Compatibility | 3300 XL 11 mm Proximity Probe |
| Measurement Range | 4 mm (Typical) |
| Output Signal | Proportional DC Voltage Output |
| Supply Voltage | -17.5 VDC to -26 VDC |
| Frequency Response | 0 to 8 kHz |
| Operating Temperature | Approximately -40°C to +70°C |
| Sensor Material | Aluminum Housing |
| Dimensions | Approx. 88 × 36 × 71 mm |
| Weight | Approx. 0.25 kg |
The lightweight construction and compact housing make the 330780-91-RU suitable for installation in control cabinets and machinery monitoring systems where space efficiency and measurement reliability are essential.
Compatible Models and Recommended Solutions
For complete machinery protection systems, the Bently Nevada 330780-91-RU is commonly paired with related 3300 XL monitoring components and replacement options.
| Model | Product Type | Recommended Purpose |
|---|---|---|
| 330780-91-00 | 3300 XL 11 mm Proximitor Sensor | Standard monitoring applications |
| 330780-91-CN | 3300 XL 11 mm Proximitor Sensor | Hazardous area applications |
| 330101 Series | 3300 XL 8 mm Probe | Shaft vibration measurement |
| 330180 Series | Extension Cable | Sensor connection expansion |
| 3300 Monitoring System | Machinery Protection Platform | Complete condition monitoring solution |
These compatible products allow engineers to build flexible monitoring architectures based on machine type, installation requirements, and operational conditions.
Featured Bently Nevada Monitoring Products
Bently Nevada provides a comprehensive range of machinery protection and condition monitoring technologies widely used in critical industrial assets.
| Model Series | Product Category | Main Application |
|---|---|---|
| 3300 XL Series | Proximity Transducer System | Shaft vibration and displacement monitoring |
| 3500 Series | Machinery Protection System | Advanced equipment protection |
| 1900 Series | Vibration Monitoring | General industrial monitoring |
| Velomitor Series | Velocity Sensors | Machine vibration analysis |
| Seismic Sensors | Vibration Detection | Structural and casing monitoring |
The 330780-91-RU remains a preferred choice for engineers requiring dependable proximity sensing performance within established Bently Nevada monitoring platforms.
