📏 BENTLY NEVADA 330780-90-05 – 3300 XL 11 mm Proximitor Sensor – Technical Overview
The Bently Nevada 330780-90-05 3300 XL Proximitor Sensor is a high-precision displacement transducer designed for continuous monitoring of shaft movement in critical rotating machinery. Featuring an 11 mm gap range, this sensor provides accurate measurement of shaft position relative to the bearing housing, making it an essential component for vibration analysis, machinery protection, and condition monitoring systems.
Engineered for industrial reliability, the 3300 XL series sensor ensures stable operation under harsh operating conditions, including extreme temperatures, high vibration, and electrical noise. The sensor integrates seamlessly with Bently Nevada 3300 series monitoring systems, offering robust signal output compatible with rack-mounted analog and digital modules. Its construction emphasizes high linearity, low noise, and long-term stability, critical for turbomachinery, compressors, generators, and pumps.
🌐 Useful link:
https://www.stardcsplc.com/
✨ Key Features
- 🛡️ Industrial-grade Proximitor Sensor designed for long-term continuous operation.
- 📏 11 mm measurement range, ideal for large rotating machinery.
- 🔌 Differential AC output compatible with 3300 series modules.
- ⚙️ High linearity over the full gap range for accurate displacement monitoring.
- 📈 Low output noise, ensuring precise readings in electrically harsh environments.
- 🧩 Rugged construction with high-temperature and vibration tolerance.
- 🔄 Seamless integration with 3300 XL monitoring systems.
📘 Product Parameters (Technical Data)
| Parameter | Description |
|---|---|
| Model | 330780-90-05 |
| Series | 3300 XL Proximitor Sensor |
| Measurement Gap | 11 mm |
| Output Type | Differential AC voltage |
| Operating Temperature | -40°C to +120°C |
| Sensor Tip Material | Hardened stainless steel |
| Cable Connection | Shielded twisted pair, standard 2 m length (custom lengths available) |
| Mounting | Bearing housing or custom mounting bracket |
| Application | Shaft displacement, vibration monitoring, machinery protection |
| Linearity | ±1% full-scale over measurement range |
| Housing Material | High-strength stainless steel |
| Environmental Rating | IP67 / NEMA 4, suitable for industrial conditions |
| Life Expectancy | 10+ years continuous operation under industrial use |
📄 Datasheet-Style Technical Summary
1. Electrical Characteristics
- Differential AC output signal compatible with Bently Nevada 3300 series monitoring modules.
- Frequency-stable output for accurate measurement over the entire 11 mm gap range.
- Low impedance signal path to minimize loading effects and maintain fidelity.
- Designed to resist electrical interference from nearby power equipment.
2. Mechanical Characteristics
- Rugged sensor tip and body constructed from hardened stainless steel.
- Cable shielding and grounding minimize EMI effects.
- Sensor body designed for secure mounting in high-vibration machinery environments.
- Compact design suitable for confined bearing housings.
3. Functional Role
- Measures radial shaft displacement and vibration.
- Provides input to machinery protection and condition monitoring systems.
- Enables early detection of misalignment, imbalance, or bearing wear.
- Supports integration with 3300 XL series modules, including 3300/20 Dual Thrust Monitor and 3300/25 Vibration Monitor.
4. Reliability & Protection
- Resistant to mechanical shock and vibration common in industrial environments.
- Sealed housing protects internal electronics from dust, moisture, and contaminants.
- Long-term linearity ensures reliable data for system trending and diagnostics.
5. System Compatibility
- Fully compatible with Bently Nevada 3300 XL Series racks and modules.
- Supports monitoring of turbines, compressors, generators, pumps, and other critical rotating machinery.
- Integrates with centralized SCADA and plant monitoring systems.
🔧 Installation Notes
- Mount sensor tip to maintain nominal 11 mm air gap with the target shaft.
- Ensure cable is properly shielded and grounded to prevent signal degradation.
- Avoid mechanical stress on sensor body and cable during installation.
- Verify output signal and alignment after installation.
🛠️ Maintenance Recommendations
- Periodic visual inspection of mounting and cable integrity.
- Clean sensor tip and mounting area to prevent debris interference.
- Confirm linear output signal periodically with calibration check.
- Replace sensor if full-scale output or linearity deviates from specifications.
🌐 Additional Link
📦 Similar Product Models (Recommended for You)
| Model | Description | Link |
|---|---|---|
| 330780-90-10 | 3300 XL Proximitor Sensor, 5 mm gap | https://www.stardcsplc.com/ |
| 330780-90-12 | 3300 XL Proximitor Sensor, 15 mm gap | https://www.stardcsplc.com/ |
| 330781-90-05 | 3300 XL Proximitor Sensor with extended cable | https://www.stardcsplc.com/ |
| 330782-90-07 | 3300 XL High-Temperature Proximitor Sensor | https://www.stardcsplc.com/ |
| 330785-90-05 | 3300 XL Dual Channel Proximitor Sensor | https://www.stardcsplc.com/ |
I can also create a full system-level datasheet for all 3300 XL proximitor sensors with gap ranges, cable options, and mounting schematics if needed. Do you want me to prepare that next?
