330180-91-05 Bently Nevada 3300 XL Proximitor Sensor 9.0m

Problem: Reliable Shaft Vibration Measurement in Harsh Industrial Environments

Rotating machinery in power generation, oil and gas, and heavy industry demands precise, continuous monitoring of shaft position and vibration. However, electromagnetic interference, extreme temperatures, and mechanical vibration can degrade signal integrity and cause false readings. The Bently Nevada 330180-91-05 3300 XL Proximitor Sensor addresses these challenges with engineering-grade precision and robust construction.

Solution: 330180-91-05 Proximitor Sensor with Advanced RFI/EMI Immunity

The 330180-91-05 is a 3300 XL Proximitor Sensor designed to accept one non-contacting 3300-series 5 mm or 3300 XL 8 mm proximity probe and extension cable. Its improved RFI/EMI immunity satisfies European CE mark approvals without special shielded conduit or metallic housings, reducing installation cost and complexity. The sensor operates from -17.5 Vdc to -26 Vdc with a maximum consumption of 12 mA, and its supply sensitivity is less than 2 mV output change per volt input change. Output resistance is 50 Ω. The A308 aluminum housing and gold-plated brass or beryllium copper connectors ensure durability. With a 9.0 meter (29.5 feet) system length and DIN mount option, this sensor suits high-density installations.

Key Technical Specifications

• Input Voltage: -17.5 Vdc to -26 Vdc (nonincendive), -23 Vdc to -26 Vdc with barriers
• Current Consumption: 12 mA maximum
• Supply Sensitivity: <2 mV per volt input change
• Output Resistance: 50 Ω
• Operating Temperature: -52°C to +100°C (-62°F to +212°F)
• Storage Temperature: -52°C to +105°C (-62°F to +221°F)
• Weight: 246 g (8.67 oz)
• Mounting: DIN rail or panel mount (4-hole footprint)
• Approvals: CSA, ATEX, IECEx

Installation and Integration

The SpringLoc terminal strips eliminate screw-type clamping, enabling faster, more robust field wiring without special tools. The mounting base provides electrical isolation, removing the need for separate isolator plates. For high-density DIN-rail installations, the compact packaging saves panel space. When integrating into existing 3300-series systems, the 4-hole mounting footprint matches older Proximitor Sensor designs for drop-in replacement. Always verify wiring against installation drawing 140979 for nonincendive circuits.

Applications and Use Cases

This sensor is ideal for steam turbines, compressors, and large motors where continuous shaft monitoring prevents catastrophic failure. In fiberglass housings, its RFI immunity allows installation near radio frequency sources without adverse effects. For offshore platforms, the wide operating temperature range ensures reliable performance in extreme climates. Additionally, the CSA, ATEX, and IECEx approvals permit use in hazardous areas when installed per applicable standards.