The Bently Nevada 330850-90-CN is a 3300 XL 25mm Proximitor sensor for 9-meter systems. It provides 100 mV/mil output for large-scale vibration monitoring. This CN-certified unit ensures high-precision displacement tracking for critical turbines and compressors.
The Bently Nevada 330850-90-CN acts as a sophisticated signal conditioner for large-scale proximity systems. This Proximitor sensor specifically supports the 3300 XL 25mm transducer family. It generates a radio frequency signal to excite the connected probe. Subsequently, the device processes the return signal to determine shaft position. This hardware converts eddy current variations into a linear voltage output. Consequently, operators receive precise data regarding machinery vibration and displacement.
This specific model features a -90- option which defines the 9.0-meter system length. Furthermore, the -CN suffix indicates specialized certification for the Chinese market. The unit accepts a standard -24 Vdc input for power. It then provides an output signal of 3.94 V/mm (100 mV/mil). This sensitivity remains highly accurate throughout the linear range. Moreover, the DIN rail mounting design ensures a secure fit in industrial cabinets.
Heavy industrial environments demand hardware with superior environmental resistance. This Proximitor sensor features a moisture-resistant coating on its internal circuitry. This prevents signal drift in humid or oily atmospheres. Additionally, the rugged housing withstands physical shocks in high-vibration zones. The hardware maintains consistent performance across a wide thermal spectrum. These characteristics make it a reliable choice for long-term machine monitoring.
Maintenance teams typically install this sensor on large rotating machinery. It supports monitoring for steam turbines and industrial gas turbines. It also tracks the axial thrust of massive centrifugal compressors. Furthermore, the 25mm system is ideal for measuring large thermal expansions. Accurate data helps prevent catastrophic failure in critical assets. This proactive approach significantly reduces unplanned maintenance costs.
The 330850-90-CN integrates seamlessly with Bently Nevada 3500 monitoring racks. It uses high-quality terminal blocks for secure field wiring. Moreover, the compact footprint allows for high-density installation in control rooms. The ClickLoc coaxial connector provides a stable link to the extension cable. This ensures the integrity of the measurement chain remains perfect. Consistent gapping results in highly repeatable and reliable machinery protection.
| Parameter | Specification Details |
| System Length | 9.0 Meters |
| Input Power | -17.5 Vdc to -26 Vdc |
| Output Scale Factor | 3.94 V/mm (100 mV/mil) |
| Linear Range | 12.7 mm (500 mils) |
| Operating Temperature | -40 °C to +85 °C |
| Housing Material | Polyphenylene sulfide (PPS) |
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