Bently Nevada 330180-90-00 3300 XL Proximitor Sensor

330180-90-00 is a panel-mount Proximitor signal conditioner within Bently Nevada’s 3300 XL eddy-current transducer series, manufactured in the USA for rotating machinery condition monitoring. The suffix "90" defines a full 9-meter total system length, which pairs with 8mm proximity probes and matching extension cables to convert non-contact metal gap displacement signals into standardized linear voltage outputs. Built-in galvanic isolation suppresses electrical noise from large motors and variable frequency drives, delivering stable vibration, axial position and keyphasor measurement data to 3500 rack monitoring systems and DCS controllers.

This proximitor features a compact aluminum housing supporting both traditional panel mounting and DIN rail installation for dense cabinet layouts. It accepts standard 3300 / 3300 XL 5mm and 8mm probe assemblies, with built-in linear calibration matched to AISI 4140 steel targets. Widely stocked as aftermarket spare parts for legacy turbine, compressor and generator monitoring systems, it offers long-term operational stability under extreme temperature and vibration industrial environments.

Main Specifications

• Brand: Bently Nevada (Baker Hughes); Model: 330180-90-00; Type: 3300 XL Proximitor Sensor
• System Configuration: 9-meter total cable length; Compatible with 5mm / 8mm eddy current proximity probes
• Power Input: -24 VDC supply voltage; Typical operating current 100mA
• Signal Output: Linear voltage range -18VDC ~ -2VDC proportional to probe-to-target gap; Optional 4-20mA signal conversion
• Mechanical & Weight: A308 aluminum enclosure; Net weight 0.246kg; Standard 4-hole panel mount footprint
• Temperature Ratings: Operating -51℃ ~ +100℃; Storage -51℃ ~ +105℃; IP20 cabinet protection rating
• Electrical Performance: Built-in channel isolation; Cross-talk suppression below 50mV with proper probe spacing
• Certifications: CE industrial EMC, UL, CSA safety certifications; Compliant with IEC 61131-2 industrial standards
• Matching Hardware: 3300 XL 8mm probes, extension cables, 3500 series monitoring racks, plant DCS control systems

Core Functions

• Process high-frequency eddy current signals from proximity probes to measure radial shaft vibration, thrust axial position and rotational keyphasor speed on rotating equipment.
• Convert tiny gap displacement variations into standardized analog voltage signals for continuous machinery health monitoring and real-time fault alarming.
• Galvanically isolated signal circuits block ground loop interference and high-frequency electrical noise to prevent measurement drift and false equipment alarms.
• Universal mechanical mounting design supports both panel cutout installation and DIN rail stacking to fit compact power plant and refinery control cabinet layouts.
• Backward compatible with all standard 3300 series probe assemblies, enabling direct ｄｒｏｐ-in replacement without full transducer system reconfiguration.
• Deliver continuous diagnostic raw data to 3500 monitoring racks and distributed DCS platforms for trending, vibration spectrum analysis and predictive maintenance scheduling.

Application Scenarios

• Proximitor spare replacement for steam/gas turbine, generator and centrifugal compressor monitoring cabinets in thermal power plants and combined cycle facilities.
• Shaft vibration and thrust position measurement spare parts for petrochemical refineries, natural gas compression stations and pipeline pump units.
• Maintenance backup inventory for pulp & paper mill rotary machinery, metallurgical rolling mills and industrial large fan monitoring systems.
• Matching signal conditioning accessory paired with 3300 XL proximity probes and Bently Nevada 3500 series online condition monitoring racks.
• Retrofit replacement components for aging monitoring systems suffering signal distortion, probe signal loss and proximity transducer hardware failures.

• Global aftermarket spare stock for predictive maintenance teams managing critical rotating machinery across energy, chemical and heavy manufacturing industries.