Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| sales@plc-automations.com | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The Bently Nevada 330780-50-CN is a rugged eddy-current proximity sensor designed for precision measurement of shaft displacement and vibration in rotating machinery. This sensor belongs to the highly reliable 3300 XL series, widely used in industrial environments for continuous condition monitoring and predictive maintenance. The CN variant offers enhanced durability and a longer cable assembly suited for challenging installations.
| Parameter | Specification / Value |
|---|---|
| Model Number | 330780-50-CN |
| Sensor Type | Eddy-current proximity sensor |
| Probe Diameter | 11 mm |
| Sensing Range | Up to 4 mm (160 mils) |
| Linear Range | 2.0 mm (80 mils) |
| Sensitivity | 200 mV/mil (7.87 mV/µm) |
| Output Signal | Voltage proportional to displacement |
| Operating Temperature | -51°C to +177°C (-60°F to +350°F) |
| Storage Temperature | -51°C to +177°C (-60°F to +350°F) |
| Frequency Response | DC to 10 kHz |
| Power Supply | -24 VDC nominal |
| Cable Length | Standard 20 meters (custom options available) |
| Mounting Thread | 5/8-18 UNF |
| Environmental Rating | IP67 |
| Material | Stainless steel probe with polymer-coated cable |
| Weight | Approx. 0.17 kg |
| Dimensions (LxWxH) | 12.0 x 10.0 x 3.5 cm |
The 330780-50-CN sensor is ideal for a wide range of industrial applications where accurate shaft monitoring is critical:
Steam and Gas Turbines: To monitor rotor position, vibration, and detect potential mechanical faults.
Compressors and Pumps: Ensures operational stability by providing real-time displacement data.
Generators: Monitors shaft alignment to prevent downtime and costly repairs.
Industrial Machinery: Suitable for heavy machinery requiring high precision and durability in harsh environments.
Petrochemical Plants and Refineries: Offers reliable performance in high-temperature, dusty, and corrosive settings.
Extended Cable Length: The 20-meter cable allows flexible installation far from control systems without signal loss.
Robust Build Quality: Stainless steel probe and rugged cable protect against mechanical damage and environmental hazards.
Wide Temperature Range: Operates reliably in extreme conditions from -51°C up to +177°C.
Non-contact Sensing: Prevents wear and reduces maintenance by eliminating physical contact with the shaft.
Compatibility: Fully integrates with the 3300 XL series monitoring platforms for seamless operation.
| Attribute | Detail |
|---|---|
| Brand | Bently Nevada |
| Series | 3300 XL |
| Product Type | Eddy-current Proximity Sensor |
| Industry Focus | Industrial Machinery Monitoring |
| Typical Use | Shaft Displacement and Vibration Measurement |
| Model | Probe Diameter (mm) | Cable Length (m) | Sensing Range (mm) | Weight (kg) | Remarks |
|---|---|---|---|---|---|
| 330780-50-00 | 11 | 5 | Up to 4 | 0.15 | Standard model with short cable |
| 330780-50-02 | 5 | 9 | Up to 2.5 | 0.22 | Smaller probe diameter, medium cable |
| 330780-50-03 | 5 | 9 | Up to 3.0 | 0.23 | Medium sensing range |
| 330780-50-04 | 5 | 14 | Up to 3.5 | 0.24 | Longer cable for flexible installs |
| 330780-50-05 | 11 | 14 | Up to 4 | 0.26 | Extended cable with larger probe |
| Model | Type | Key Application | Dimensions (cm) | Weight (kg) |
|---|---|---|---|---|
| 330100-50-00 | Proximity Sensor | Shaft Displacement | 12.0 x 10.0 x 3.5 | 0.18 |
| 330780-50-01 | Proximity Sensor | Vibration Monitoring | 12.0 x 10.0 x 3.5 | 0.17 |
| 330780-50-02 | Proximity Sensor | Machinery Protection | 12.0 x 10.0 x 3.5 | 0.22 |
| 330100-90-02 | Proximity Sensor | High-temperature Environments | 12.0 x 10.0 x 3.5 | 0.19 |
| 330100-90-05 | Proximity Sensor | Industrial Automation | 12.0 x 10.0 x 3.5 | 0.20 |
Q1: What is the main function of the 330780-50-CN sensor?
A1: It measures shaft displacement and vibration in rotating machinery to monitor equipment condition.
Q2: How long is the cable on this sensor?
A2: The standard cable length is 20 meters, designed for flexible and remote installation.
Q3: What is the operating temperature range?
A3: It operates between -51°C and +177°C, suitable for harsh industrial environments.
Q4: Is this sensor compatible with existing Bently Nevada monitoring systems?
A4: Yes, it integrates seamlessly with the 3300 XL series and related platforms.
Q5: What kind of maintenance does this sensor require?
A5: Minimal maintenance is needed, typically inspection of cable and mounting integrity.
Q6: Can the sensor detect both axial and radial shaft movements?
A6: Yes, depending on mounting orientation, it can monitor displacement in multiple directions.
Q7: How does the sensor handle harsh environments?
A7: It is rated IP67, sealed against dust and water ingress, and built with durable materials.
Q8: What is the importance of non-contact sensing?
A8: It prevents wear and tear on both the sensor and shaft, reducing maintenance and improving lifespan.
Q9: What are the installation requirements?
A9: The sensor must be mounted securely with proper clearance (typically 0.05 to 4 mm) from the shaft surface.
Q10: Can the cable length be customized?
A10: Yes, while 20 meters is standard, custom cable lengths are available upon request.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.