Rosemount 2120 Series Fork Level Switch Vibrating Level Switch, Side and Top Mount, ATEX Rated, Glass 2120D1AK1I1AA0000

Rosemount 2120D1AK1I1AA0000 Fork Level Switch Vibrating Level Switch is an advanced industrial sensor designed for precise liquid level detection in demanding environments. Using the vibrating tuning fork principle driven by a piezo-electric crystal, this Level Switch accurately detects liquid presence based on the change in the sensor's natural frequency when immersed in different media.

Its construction includes a robust glass filled nylon housing combined with a non-asbestos sheet gasket, offering excellent resistance against harsh chemical and mechanical conditions. The unit supports side and top mounting installations and includes a standard 44mm fork length, which is optimized for quick response times, even with viscous liquids.

The switch operates reliably across a broad temperature range from -40°C to 150°C and withstands pressures up to 100 bar. An adjustable switching delay feature prevents false activation caused by turbulence or splashing in fluid applications, enhancing operational safety and accuracy.

A heartbeat LED indicator provides clear visual feedback of the device’s operating condition, illuminating steadily when the switch output is active and flashing when inactive. The device is designed with no moving parts to minimize maintenance needs and ensure a long operational lifespan.

Certified under ATEX for intrinsic safety, with additional approvals from EAC and CSA, the Rosemount 2120D1AK1I1AA0000 is suitable for use in hazardous areas and complies with stringent industrial standards. Its interface is designed to integrate with PLC systems, operating at a maximum of 12V DC and 2.5mA current.

Operates using vibrating tuning fork principle for accurate liquid level sensing. Durable glass filled nylon housing with non-asbestos gasket for harsh environments. Side and top mountable with a 44mm fork length for versatile installation.

Wide operating temperature and pressure range: -40°C to 150°C, up to 100 bar pressure. Adjustable switching delay to avoid false triggers in turbulent conditions. Heartbeat LED for visual indication of operating and switch state.

No moving parts ensure minimal maintenance requirements. ATEX certified for safe operation in hazardous locations. Compatible with PLC interface for automated control systems. Suitable for pump control, overfill alarm, and level detection in various liquids.

This product is ideal for use in industrial automation, water treatment, chemical processing, and other manufacturing environments where reliable level sensing is critical. For more options in level sensors and switches, explore the Level Sensors category on EnvMart.