The Bently Nevada 330980-71-CN belongs to the 3300 XL NSv series. This Proximitor Sensor measures shaft vibration and position without physical contact. Its thin profile allows high-density DIN rail mounting or traditional panel mounting. Additionally, it offers improved RFI/EMI immunity for stable operation near radio transmitters or variable frequency drives. The SpringLoc terminal strips speed up field wiring and require no special tools. This specific model has a 7.0 meter total system length and country-specific agency approval (option CN). Users trust the 330980-71-CN for compressors, turbines, pumps, and generators.
Input and Power Requirements
The 330980-71-CN accepts one noncontacting 3300 RAM or 3300 NSv proximity probe plus extension cable. Power requirement ranges from -17.5 Vdc to -26 Vdc without barriers at 12 mA maximum consumption. With barriers, use -23 Vdc to -26 Vdc. Operation above -23.5 Vdc may reduce the linear range. Supply sensitivity is less than 2 mV output change per volt of input change. Output resistance is 50 Ω.
System Accuracy Conditions
Specifications apply under these conditions: temperature from 0°C to +45°C (+32°F to +113°F), maximum altitude 2000 m, -24 Vdc power supply, 10 kΩ load, and a Bently Nevada AISI 4140 steel target (31 mm diameter or larger). Probe gap must be 1.0 mm (40 mils). System accuracy does not apply when using any other target material.
Physical Construction
Proximitor Sensor material is A380 aluminum. Total weight is 255 g (9 oz). The housing is designed for either DIN rail or panel mount configurations. SpringLoc terminal strips require no special tools for wiring connections.
Temperature Range
Operating temperature spans -52°C to +100°C (-62°F to +212°F). Storage temperature extends from -52°C to +105°C (-62°F to +221°F). This wide range suits outdoor and cold climate installations.
Humidity and Environmental Protection
Relative humidity tolerance reaches 100% condensing (non-submersible). Connectors must be protected from direct water entry. The 330980-71-CN has passed IEC 68-2-3 damp heat testing.
RFI/EMI Immunity
Improved RFI immunity allows European CE mark approval without special mounting considerations. Nearby high-frequency radio signals do not adversely affect the transducer system. Therefore, you can install this Proximitor Sensor near communication equipment.
Total Length and Mounting Option (71)
Option code 71 provides 7.0 meters (23.0 feet) total system length. This includes the probe, extension cable, and Proximitor Sensor. The mounting method is DIN rail mount. This configuration saves space in control cabinets.
Agency Approval Option (CN)
Option code CN means country-specific approval. This Bently Nevada 330980-71-CN meets local regulatory requirements for the intended country of use. Verify compatibility with your local codes before installation.
Similar Features
The 330980-71-CN shares many features with the standard 3300 XL 8 mm Proximitor Sensor. Both measure shaft vibration and position. Both use noncontacting proximity probes.
Key Differences
The NSv version has a thinner design for high-density DIN rail mounting. It also offers better RFI/EMI immunity. SpringLoc terminals make wiring faster and more robust. These improvements reduce installation time and simplify panel layouts.
Mounting Instructions
First, select either DIN rail or panel mount location. For DIN rail, clip the 330980-71-CN directly onto a standard 35 mm rail. For panel mount, use screws through the mounting holes. Ensure adequate space for wiring and ventilation.
Wiring Connections
Use SpringLoc terminal strips for field wiring. Insert a screwdriver into the release slot, push the wire in, then remove the screwdriver. No special tools are required. Connect power supply between -17.5 Vdc and -26 Vdc. Verify polarity before energizing.
Probe and Extension Cable Installation
Connect one 3300 RAM or 3300 NSv proximity probe and extension cable to the Proximitor Sensor. Total system length is 7.0 meters (23.0 feet). Do not exceed this length. Set probe gap to 1.0 mm (40 mils) for optimal linear range. Target must be AISI 4140 steel with minimum 31 mm diameter.
Grounding and Shielding
Follow standard Bently Nevada grounding practices. Keep sensor cables away from high-voltage lines. Improved RFI immunity reduces but does not eliminate the need for proper shielding.
Bently Nevada 330980-71-CN NSv Proximitor Sensor (1 unit)
SpringLoc terminal strips (pre-installed)
DIN rail mounting clips
Panel mounting hardware
Installation guide (reference drawing included)
Note: Certificates and warranty documents are not included in this list. Proximity probe and extension cable sold separately.
1. What probes work with the 330980-71-CN?
This Proximitor Sensor accepts 3300 RAM or 3300 NSv proximity probes only. Standard 3300 XL 8 mm probes are not compatible.
2. Can I mount the 330980-71-CN on a standard DIN rail?
Yes, option code 71 specifically provides DIN rail mounting. It fits standard 35 mm DIN rails commonly used in control cabinets.
3. Why does the linear range reduce above -23.5 Vdc?
Operation at voltages more positive than -23.5 Vdc reduces the linear measurement range. Always supply -23 Vdc to -26 Vdc when using barriers. Without barriers, -17.5 Vdc to -26 Vdc is acceptable.
4. Is the probe included with the 330980-71-CN?
No, the probe and extension cable are sold separately. The 7.0 meter system length refers to total length when combined with compatible probe and cable.
5. What shipping carriers do you use?
We ship worldwide via FedEx, UPS, or DHL. Each order includes anti-static packaging and full tracking information.
| Brand Name | Bently Nevada |
| Model No. | 330980-71-CN |
| Product Type | Proximitor Sensor |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
