Product Overview
The Bently Nevada 330980-50-00 NSv Proximitor Sensor is a precision vibration monitoring component designed for industrial automation systems. As part of the 3300 XL family, this sensor delivers reliable, noncontacting displacement measurements essential for protecting rotating machinery. Its compact, thin profile supports high-density DIN-rail or traditional panel mounting, making it a versatile choice for modern control panels.
Engineered with improved RFI/EMI immunity, the Bently Nevada 330980-50-00 achieves European CE mark approvals without special mounting considerations. This immunity also prevents nearby high-frequency radio signals from affecting transducer performance, ensuring consistent readings in electrically noisy environments. The SpringLoc terminal strips simplify field wiring, eliminating the need for special tools and speeding up installation.
Key Features & Benefits
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Thin design: Fits high-density DIN-rail or panel mount configurations, saving valuable panel space.
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Enhanced RFI/EMI immunity: Meets CE mark requirements without extra shielding, protecting against signal interference.
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SpringLoc terminal strips: Tool-free, robust wiring connections that reduce installation time and improve reliability.
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Wide operating temperature range: Functions from -52°C to +100°C, suitable for harsh industrial environments.
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100% condensing humidity tolerance: With protected connectors, the sensor withstands damp heat per IEC 68-2-3 testing.
Technical Specifications
| Parameter |
Value |
| Model |
330980-50-00 |
| Product Type |
NSv Proximitor Sensor |
| Total Length and Mounting Option |
5.0 metre (16.4 feet) system length, panel mount |
| Agency Approval Option |
Not required |
| Proximitor Sensor Material |
A380 aluminum |
| Sensor Weight |
255 g (9 oz) |
| Sensor Input |
Accepts one noncontacting 3300 RAM or 3300 NSv Proximity Probe and Extension Cable |
| Power Supply |
-17.5 Vdc to -26 Vdc without barriers at 12 mA max consumption; -23 Vdc to -26 Vdc with barriers |
| Supply Sensitivity |
Less than 2 mV change in output voltage per volt change in input voltage |
| Output Resistance |
50 Ω |
| Operating Temperature |
-52°C to +100°C (-62°F to +212°F) |
| Storage Temperature |
-52°C to +105°C (-62°F to +221°F) |
| Relative Humidity |
100% condensing, nonsubmersible when connectors are protected; tested to IEC 68-2-3 damp heat |
Specifications are for a 3300 XL NSv Proximitor Sensor, extension cable, and probe between 0°C and +45°C at a maximum altitude of 2000 m, with a -24 Vdc power supply, a 10 kΩ load, a Bently Nevada supplied AISI 4140 steel target 31 mm in diameter or larger, and a probe gap of 1.0 mm (40 mils).
Industry Applications
The Bently Nevada 330980-50-00 is widely used in turbomachinery, compressors, pumps, and electric motors to monitor shaft vibration and axial position. In petrochemical plants, it helps detect early bearing wear, preventing costly unplanned downtime. In power generation, it supports continuous condition monitoring of turbines, ensuring operational safety and efficiency.
Thanks to its RFI/EMI immunity, the sensor performs reliably in variable frequency drive (VFD) environments where electrical noise is common. Its panel-mount design makes it ideal for retrofitting existing control cabinets without extensive modifications.
Installation & Setup Guidance
Mount the Bently Nevada 330980-50-00 on a standard DIN rail or panel using the provided mounting holes. Ensure the sensor is grounded properly to avoid ground loops. Connect the proximity probe and extension cable to the SpringLoc terminals, tightening each screw securely. Verify the power supply is within -17.5 Vdc to -26 Vdc (without barriers) before energizing.
Set the probe gap to 1.0 mm (40 mils) using a feeler gauge or the recommended calibration procedure. After installation, perform a system calibration with a Bently Nevada AISI 4140 steel target to ensure accurate readings. Avoid mounting near high-frequency emitters unless the sensor's immunity is confirmed.
Maintenance & Reliability
Periodically inspect the SpringLoc terminals for loose connections and corrosion. Clean the sensor surface with a dry cloth; do not use solvents that may damage the A380 aluminum housing. Check the probe and cable for physical damage, especially in high-vibration areas. The sensor operates reliably over a wide temperature range, but ensure connectors remain protected from condensation to maintain humidity tolerance.
Regular calibration checks every 6-12 months are recommended to maintain measurement accuracy. The sensor's robust design minimizes maintenance needs, reducing total cost of ownership.
Selection Guide & Purchasing Advice
When ordering the Bently Nevada 330980-50-00, verify the system length (5.0 meters) and mounting option (panel mount) match your application. Confirm the agency approval option (00 – not required) aligns with your regulatory needs. Ensure compatibility with 3300 RAM or 3300 NSv probes and extension cables.
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