Introduction to the 330980-72-CN
When machinery vibration threatens uptime, the 330980-72-CN from Bently Nevada provides a dependable monitoring solution. This NSv Proximitor Sensor is engineered for precision and durability in industrial environments. It accepts one noncontacting 3300 RAM or 3300 NSv Proximity Probe and extension cable, making it a versatile choice for rotating equipment protection.
The 330980-72-CN features a 7.0-meter (23.0 feet) system length with no mounting hardware, simplifying installation in space-constrained panels. Its thin design supports both high-density DIN-rail and traditional panel mount configurations, offering flexibility for various layouts.

Key Features and Technical Specifications
- Model: 330980 - NSv Proximitor Sensor
- Total Length: 7.0 meters (23.0 feet), no mounting hardware
- Agency Approval: CN (Country Specific)
- Proximitor Sensor Material: A380 aluminum
- Weight: 255 g (9 oz)
- Input: Accepts one noncontacting 3300 RAM or 3300 NSv Proximity Probe and extension cable
- Power Requirement: -17.5 Vdc to -26 Vdc without barriers at 12 mA maximum 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, non-submersible when connectors are protected; tested to IEC 68-2-3 damp heat
One distinctive spec is the improved RFI/EMI immunity. This allows the sensor to achieve European CE mark approvals without special mounting considerations, and it prevents nearby high-frequency radio signals from adversely affecting the transducer system. This is critical in plants with variable frequency drives or wireless transmitters.
Installation and Setup
Installing the 330980-72-CN is straightforward. The SpringLoc terminal strips require no special installation tools, enabling faster and highly robust field wiring connections. For optimal performance, mount the sensor in a clean, dry location within the specified temperature range. Ensure the probe gap is set to 1.0 mm (40 mils) when using a Bently Nevada AISI 4140 steel target of 31 mm (1.2 in) diameter or larger. Follow the manufacturer's manual for precise wiring and grounding instructions.
Maintenance and Reliability
Regular inspection of the sensor and its connections helps maintain measurement accuracy. Periodically verify that the mounting is secure and that the probe gap remains within specification. The sensor's A380 aluminum housing is robust, but avoid exposing connectors to moisture without protection. For safety-rated equipment, always follow the manufacturer's safety manual for inspection intervals and procedures.
Compatibility and Integration
The 330980-72-CN is designed to work with Bently Nevada 3300 RAM or 3300 NSv Proximity Probes and extension cables. It is compatible with Bently Nevada monitoring systems that accept Proximitor sensor inputs. For specific system integration details, refer to the official Bently Nevada documentation or contact AutoDCSTech.
Troubleshooting Common Issues
If the sensor output appears unstable, check the power supply voltage. Operation at a more positive voltage than -23.5 Vdc can result in reduced linear range. Ensure the supply is within -17.5 Vdc to -26 Vdc without barriers, or -23 Vdc to -26 Vdc with barriers. Also verify that the probe gap is correct and that the target material matches the specified AISI 4140 steel. If issues persist, consult the Bently Nevada manual or AutoDCSTech support.
Product Support and Availability
The 330980-72-CN is available from AutoDCSTech. Please verify current lifecycle status and availability with AutoDCSTech before ordering. Our team can provide technical support and answer questions about integration and installation.
Availability & Condition at AutoDCSTech
| Part Number | 330980-72-CN |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
