Product Overview

The SICK LFP Cubic level sensor is a robust, precision-level measurement device designed for reliable detection in industrial process environments. It features a rod probe design with switch and continuous measurement capabilities, enabling accurate level monitoring across a wide range of applications. The sensor operates within a process pressure range of –1 bar to 10 bar and supports temperatures from –20 °C to +100 °C. With an accuracy of ±5 mm and a resolution of 1 mm, it delivers precise level data. Equipped with IO-Link communication, the LFP Cubic enables seamless integration into modern automation systems for real-time monitoring and diagnostics. Its IP67 enclosure rating ensures protection against dust and immersion, making it ideal for harsh industrial settings where reliability is critical.

Key Features and Technology

The LFP Cubic leverages a rod probe technology to detect liquid levels with high precision and fast response times. The sensor offers two measurement modes: high-speed detection with a response time of up to 400 ms, and high-accuracy mode with a maximum response time of 2,800 ms. All outputs are polarity protected and include overload and short-circuit protection for enhanced safety. The deactivated area at the process connection is 25 mm when parameterized with water under reference conditions, otherwise 40 mm. With temperature drift less than 0.1 mm/K, performance remains stable across varying ambient temperatures. The sensor supports multiple output types including PNP, PNP/NPN, and analog signals (4 mA to 20 mA or 0 V to 10 V), ensuring compatibility with diverse control systems.

Technical Characteristics

The LFP Cubic level sensor operates within an ambient temperature range of –20 °C to +60 °C. Process temperatures are supported from –20 °C to +100 °C, and the process pressure range is –1 bar to 10 bar. The accuracy of the sensor element is ±5 mm, with a resolution of 1 mm. Output signals include one PNP output, one PNP/NPN output, and either 4 mA to 20 mA or 0 V to 10 V analog signals. Output current is limited to less than 100 mA. The supply voltage range is 12 V DC to 30 V DC. All connections are polarity protected, and the sensor housing is made of plastic PBT. The process connection uses G ¾ A thread, while the connection type is a round M12 x 1.5 pin connector. The deactivated area at the process connection is 25 mm under reference conditions (with water), otherwise 40 mm.

Configuration and Integration

The LFP Cubic integrates seamlessly into industrial automation systems via IO-Link, enabling bidirectional communication for parameterization, diagnostics, and real-time data exchange. The sensor supports multiple output types—PNP, PNP/NPN, and analog signals (4 mA to 20 mA or 0 V to 10 V)—allowing flexibility in system design. Output load specifications are defined as 4 mA to 20 mA with a maximum resistance of 500 Ω at supply voltage greater than 13.5 V, and 400 Ω at supply voltage greater than 12 V; for the 0 V to 10 V signal, the load must exceed 750 Ω when supply voltage is ≥14 V. All outputs are protected against overloads and short circuits. The sensor’s polarity-protected connections ensure safe operation in high-voltage environments, reducing installation risks.

Operating Environment

The LFP Cubic is designed for operation in demanding industrial conditions with an ambient temperature range of –20 °C to +60 °C. It can withstand process temperatures from –20 °C to +100 °C and operates under process pressures ranging from –1 bar to 10 bar. The sensor’s IP67 enclosure rating ensures complete dust protection and submersion resistance up to 1 meter for 30 minutes, making it suitable for wet or dirty environments. The housing is constructed from plastic PBT, providing durability while maintaining lightweight design. The device complies with protection class III standards and is engineered to maintain performance under varying environmental conditions, including temperature fluctuations and exposure to moisture.

Industrial Applications

The SICK LFP Cubic level sensor is ideal for use in tanks, silos, and vessels where precise liquid or material level monitoring is required. It is commonly applied in chemical processing, food & beverage, pharmaceuticals, and water treatment industries. Its ability to operate under high pressure and temperature conditions makes it suitable for both static and dynamic process environments. The sensor’s IO-Link interface supports integration with PLCs and SCADA systems, enabling remote diagnostics and real-time monitoring. With a response time of up to 400 ms in high-speed mode, it is well-suited for applications requiring rapid level detection. Its robust construction and environmental protection ensure long-term reliability in challenging industrial settings.