​1. Product Overview and Core Functionality​

The Bently Nevada 3805E is a high-precision eddy current proximity probe system designed for industrial machinery protection and condition monitoring. Part of the 3300 XL series, this non-contact sensor measures shaft displacement, vibration, and speed in rotating equipment such as turbines, motors, and compressors. Its advanced design includes a rugged probe, extension cable, and preamplifier, ensuring reliable operation in extreme temperatures (-40°C to 150°C) and high-electrical-noise environments. The 3805E provides a linear voltage output proportional to gap distance, with a sensitivity of 200 mV/mil (7.87 V/mm), enabling precise detection of mechanical faults like misalignment, bearing wear, or rotor instability. Its corrosion-resistant stainless steel construction and IP67 rating make it ideal for oil and gas, power generation, and heavy manufacturing applications.

​2. Technical Specifications and System Integration​

Engineered for accuracy, the 3805E operates on a -24 VDC power supply and delivers a frequency response up to 10 kHz, capturing both slow-speed and high-frequency dynamic changes. The system includes a temperature-stable probe with a 5 mm (0.2 in) linear measurement range and anti-rotation features to prevent cable damage. Compliant with API 670 standards for machinery protection, it integrates seamlessly with Bently Nevada’s System 1™ software for real-time diagnostics and predictive maintenance. The sensor’s modular design allows easy replacement of components, minimizing downtime. Optional certifications, such as ATEX and IECEx, ensure safe operation in hazardous zones, while electromagnetic shielding reduces interference in electrically noisy environments.

​3. Industry Applications and Operational Benefits​

The 3805E is critical for safeguarding critical assets in industries requiring continuous equipment reliability, including petrochemical plants, hydroelectric facilities, and aerospace test rigs. By monitoring shaft position and vibration trends, it helps prevent catastrophic failures, reducing unplanned outages and maintenance costs. Its compatibility with legacy and modern control systems simplifies upgrades, while the probe’s robust design ensures long-term stability in high-vibration and corrosive settings. The system’s diagnostic capabilities enable early detection of issues like thrust bearing wear or thermal growth, supporting data-driven decisions to optimize machinery lifespan and operational safety. Trusted globally, the 3805E exemplifies Bently Nevada’s expertise in precision monitoring solutions for industrial automation.

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
more about us , u can view our official web:http://www.zcsensors.com/follow us :

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With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are perfectly.

we are major in PLC,Sensors,HIM,Transmitters.

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