330180-90-CN Bently Nevada Proximitor Sensor -17.5 to -26 Vdc

Product Overview: Bently Nevada 330180-90-CN

When your machinery protection system demands exact, repeatable displacement measurements, the Bently Nevada 330180-90-CN Proximitor Sensor delivers engineering-grade precision. This sensor conditions signals from one non-contacting 3300-series 5 mm or 3300 XL 8 mm proximity probe and extension cable. Consequently, it serves as the critical interface between your probe and monitoring electronics. Its physical packaging supports high-density DIN-rail installations, yet it also retains the traditional 4-hole mounting footprint of older Proximitor designs. As a result, you can standardize on one sensor for both new cabinets and legacy panel upgrades.

Key Specifications and Performance Data

Every value below is verified against the manufacturer's data. The table presents the exact electrical and environmental parameters for this model.

• Sensor Input: Accepts one non-contacting 3300-series 5 mm or 3300 XL 8 mm proximity probe and extension cable.
• Power Requirement: -17.5 Vdc to -26 Vdc when installed with nonincendive circuit per drawing 140979 at 12 mA maximum consumption; -23 Vdc to -26 Vdc with barriers.
• Supply Sensitivity: Less than 2 mV output voltage change per volt input voltage change.
• Output Resistance: 50 Ω.
• Proximitor Sensor Material: A308 aluminum.
• Connector Material: Gold-plated brass or gold-plated beryllium copper.
• Weight: 246 g (8.67 oz).
• Operating Temperature: -52°C to +100°C (-62°F to +212°F).
• Storage Temperature: -52°C to +105°C (-62°F to +221°F).

Notably, the 3300 XL Proximitor Sensor is highly immune to radio frequency interference. This immunity allows installation in fiberglass housings without adverse effects from nearby RF signals. Furthermore, its improved RFI/EMI immunity satisfies European CE mark approvals without special shielded conduit or metallic housings. Consequently, you achieve lower installation costs and reduced complexity. The SpringLoc terminal strips require no special tools and facilitate faster, more robust field wiring by eliminating screw-type clamping mechanisms that can loosen.

Applications and Integration

This sensor suits rotating machinery monitoring where precise displacement measurement is essential. For example, you can use it on steam turbines, centrifugal compressors, and large motors. Because it accepts both 5 mm and 8 mm probes, it offers flexibility across mixed probe inventories. Additionally, the isolated mounting base eliminates separate isolator plates, which simplifies cabinet layout and reduces wiring time. When integrating into a 3300 XL system, the 330180-90-CN works with standard extension cables and monitoring modules. However, note that operation at a more positive voltage than -23.5 Vdc can reduce linear range. Therefore, verify your supply voltage against the specified -17.5 Vdc to -26 Vdc range.

Installation and Maintenance Guidance

Install the sensor using either DIN-rail or the 4-hole panel mount. The mounting base provides electrical isolation, so you do not need separate isolator plates. For field wiring, use the SpringLoc terminals; they accept standard tools and create reliable connections. Because the operating temperature range spans -52°C to +100°C, the sensor performs in extreme environments. Nevertheless, inspect periodically for mechanical damage and secure connections. Follow the manufacturer's safety manual for all maintenance activities. Please verify current lifecycle status and availability with AutoDCSTech before ordering.