Description
Are you experiencing calibration drift or signal distortion on your high-speed rotating machinery? In typical turbine or compressor setups, RF interference and temperature fluctuations degrade vibration signals before they ever reach the monitoring rack. The Bently Nevada 330180-51-CN 3300 XL Proximitor Sensor solves this issue directly by incorporating built-in immunity to radio frequency signals. This allows installation in standard fiberglass housings without requiring expensive shielded conduit or specialized metallic enclosures.
For plant maintenance teams prioritizing minimal downtime, we keep the 330180-51-CN in New Original (Factory Sealed) condition with a 1-year replacement warranty. Standard lead times for in-stock units are 1 to 2 business days.
Technical Specifications
- Parameter: Value
- System Total Length: 5.0 meters (16.4 feet)
- Mounting Configuration: 35 mm DIN-rail mount
- Material: A308 Aluminum
- Input Compatibility: One non-contacting 3300-series 5 mm, 3300 8 mm, or 3300 XL 8 mm probe and extension cable
- Agency Approval Option: -CN (Specific ATEX, IECEx, and Chinese NEPSI hazardous area certifications)
- Output Impedance: 50 \Omega
- Linear Range: 2.0 mm (80 mils)
- Scale Factor: 7.87 V/mm (200 mV/mil) when paired with standard AISI 4140 steel target
- Operating Temperature: −51 to +100 °C (−60 to +212 °F)
Field Performance & Application Notes
Having integrated these sensors across various industrial turbine decks, the DIN-rail mounting base on the 330180-51-CN is a massive convenience for high-density terminal cabinets. The base provides electrical isolation inherently, eliminating the need for separate isolator plates that older generations required.
However, verify your physical cable lengths before mounting this unit. The “-51” option designates a 5.0-meter system length. This means your combined probe length and extension cable length must equal exactly 5.0 meters. Connecting a 1.0-meter probe and a 9.0-meter extension cable to this Proximitor will cause severe calibration errors, rendering your vibration readings completely inaccurate.
Strategic Pros & Cons
- Pro: Advanced RFI/EMI immunity satisfies stringent European CE mark requirements without special shielded housings.
- Pro: Backward compatible with non-XL 3300 series 5 mm and 8 mm proximity probes.
- Con: Limited to 5.0-meter system runs; cannot be used in applications requiring 9.0-meter cable runs.
- Con: The -CN regional certification can limit global cross-site sharing if other plants operate strictly under local FM or CSA approvals.
Quick Conclusions
- Outstanding solution for compact, high-density DIN-rail cabinets near high-frequency noise sources.
- Delivers complete mechanical and electrical interchangeability with older 3300 components.
- Designed specifically for hazardous areas requiring ATEX, IECEx, and NEPSI compliance.
FAQ
- What is the difference between the 330180-51-CN and the 330180-51-00?The hardware and performance are identical, but the “-CN” suffix carries certified hazardous area approvals specific to China (NEPSI) alongside ATEX and IECEx, whereas the “-00” option carries standard global approvals.
- Can this sensor be used with a 11 mm probe?No. The 11 mm probe utilizes a different Proximitor model (330780 series) because of the different coil characteristics and wider linear range.
- What is the proper power supply voltage for this sensor?The unit requires a negative DC power supply, typically −24 V DC (nominal operating range of −18 V DC to −26 V DC).
