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Product Introduction
The Bently Nevada 330780-90-05 belongs to the 3300 XL series, one of the most trusted and widely used proximity transducer systems in industrial condition monitoring. Engineered for harsh industrial environments, this sensor combines robust physical design with high accuracy and stability, making it ideal for long-term deployment in critical rotating machinery.
The 3300 XL 11 mm Proximitor Sensor is specifically designed to detect the relative motion and vibration of rotating shafts, often in conjunction with proximity probes and extension cables. It is part of Bently Nevada’s industry-leading machinery protection system that conforms to API 670 standards.
Product Specifications
| Parameter | Value |
| Model Number | 330780-90-05 |
| Product Series | 3300 XL |
| Sensor Type | Proximitor Sensor |
| Probe Tip Diameter | 11 mm |
| Compatible Probe | 3300 XL 11 mm Proximity Probe |
| Total Length | 9.0 meters |
| Power Supply | –24 Vdc to –28 Vdc |
| Output Signal | –200 mV/mil (–7.87 mV/μm) |
| Sensitivity | 200 mV/mil (±5%) |
| Operating Temperature Range | –35°C to +100°C |
| Storage Temperature Range | –51°C to +177°C |
| Frequency Response | 0 to 10 kHz nominal |
| Mounting | Panel mount or DIN rail mount |
| Material | Aluminum housing |
| Weight | 0.255 kg |
| Certification | CE, CSA, ATEX, IECEx compliant |
Product Applications
The Bently Nevada 330780-90-05 Proximitor Sensor is deployed across a wide range of industrial sectors and critical equipment where vibration and shaft displacement monitoring is essential:
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Steam and gas turbines
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Centrifugal compressors
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Electric motors and generators
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Pumps and fans
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Gearboxes
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Marine propulsion systems
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Petrochemical, oil & gas refineries
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Power generation and industrial manufacturing
Product Advantages
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High Reliability: Proven track record in extreme industrial environments.
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API 670 Compliance: Ensures compatibility with international standards for machinery protection.
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Long-Term Stability: Excellent thermal and mechanical stability minimizes recalibration needs.
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Interchangeable Components: Compatible with other Bently Nevada 3300 XL probes and extension cables.
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Ease of Installation: Designed for quick installation and minimal maintenance.
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Accurate Measurements: High sensitivity and frequency response for precise vibration monitoring.
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Versatile Mounting Options: Flexible installation in panels or on DIN rails.
Latest Product News Headlines
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“Bently Nevada Expands 3300 XL Line with Advanced Condition Monitoring Capabilities”
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“3300 XL Sensors Achieve API 670 Certification for Nuclear Applications”
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“GE’s Bently Nevada Pushes Boundaries in Predictive Maintenance with XL Series”
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“Case Study: 330780-90-05 Enables Real-Time Monitoring in Offshore Drilling Rigs”
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“New Upgrades in 3300 XL Series Improve Signal Accuracy and Durability”
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“Bently Nevada’s Proximitor Systems Aid in Reducing Turbine Downtime”
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“3300 XL Series Integrated with Modern PLCs for Enhanced Diagnostics”
Frequently Asked Questions (FAQ)
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What is the sensing range of the 330780-90-05 Proximitor Sensor?
It is typically used with an 11 mm probe, and provides accurate readings up to a range of approximately 2 mm from the target. -
Is the sensor compatible with older Bently Nevada systems?
Yes, it maintains backward compatibility with earlier generation 3300 systems, including probes and extension cables. -
What is the standard output signal?
The output is a linear –200 mV/mil signal that corresponds to the proximity of the monitored shaft. -
Can it be used in high-temperature environments?
The sensor operates safely between –35°C and +100°C, and stores up to 177°C. -
Does it require calibration during operation?
Not frequently. It is designed for long-term stability with minimal drift. -
What certifications does the product carry?
It complies with CE, CSA, ATEX, and IECEx standards for safety and environmental compliance. -
Can the sensor be mounted in any orientation?
Yes, the housing design supports flexible mounting, including panel and DIN rail options. -
What material is the housing made of?
The enclosure is constructed from rugged aluminum to withstand industrial conditions. -
What kind of cable is recommended?
It works best with Bently Nevada 3300 XL extension cables, typically with Teflon insulation for durability. -
Is the sensor suitable for marine or offshore applications?
Absolutely. It’s widely used in maritime propulsion and offshore drilling environments due to its reliability and sealing.
Recommended Related Models (Same Series or Application)
| Model | Description | System Length | Output Signal |
| 330780-50-00 | 3300 XL 11 mm Proximitor Sensor | 5.0 meters | –200 mV/mil |
| 330780-90-00 | 3300 XL Proximitor Sensor | 9.0 meters | –200 mV/mil |
| 330130-040-00-00 | 3300 XL 8 mm Proximity Probe | 4.0 meters | Probe only |
| 330180-91-00 | 3300 XL 11 mm Extension Cable | 9.0 meters | Cable only |
| 330103-00-05-10-02-00 | 3300 XL Reverse Mount Probe | 5.0 meters | Reverse orientation |
| 330780-91-05 | 3300 XL 11 mm Proximitor, 90° Connector | 9.0 meters | –200 mV/mil |
Popular Bently Nevada Models (Same Brand)
| Model | Description | Application | Output |
| 3500/22M | Keyphasor Module for 3500 Monitoring System | Shaft speed and phase | Digital |
| 3500/42M | Proximitor/Seismic Monitor | Vibration monitoring | Buffered + relay |
| 330105-02-12-10-02-00 | 3300 XL 8 mm Proximity Probe | Turbine monitoring | –200 mV/mil |
| 330500 | Velocity Transducer | Low-frequency vibration | 3.94 mV/mm/s |
| 330103-00-07-10-02-00 | 3300 XL Reverse Mount Probe | Tight clearance applications | –200 mV/mil |
| 7200-UM | Universal Monitor for legacy systems | Multi-parameter | Analog/digital outputs |
