Siemens SITRANS LG270 Guided Radar

Key Features of the SITRANS LG270

The LG270 series has several benefits, some of which we have listed for you below:

• High temperature/pressure tolerance: Operates from -196°C to +450°C and up to 400 bar
• Guided radar technology: Measures up to 60 meters with precision
• Handles extreme conditions: Suitable for aggressive media, foam, steam, and condensation
• High accuracy: ±2 mm level and interface measurement
• Adaptable design: Versions for tanks with agitators, vapors, and low dielectric constant liquids
• Advanced diagnostics: Ensures safety and reliability across challenging environments
• Modular setup: Easy maintenance with field-replaceable and adjustable probes.

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Diverse Applications of the SITRANS LG270

The SITRANS LG270 is designed for extreme conditions, making it the ideal solution for challenging level and interface measurement tasks in aggressive environments. Its robust construction and guided radar technology ensure precise measurements even in the presence of foam, steam, condensation, and turbulent media surfaces. The LG270 is particularly well-suited for industries that require high-performance measurement in difficult conditions, such as chemical processing, petrochemicals, power generation, and maritime applications. Whether it's high temperature, high pressure, or low dielectric constants, the LG270 delivers reliable and accurate performance.

Key Applications:

• Maritime industry
• Chemical and petrochemical industries
• Power generation plants
• Storage tanks with aggressive media
• Tanks with agitators, vapors, and challenging liquid properties
• High-temperature and high-pressure environments.

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Effortless Operation and Configuration of the SITRANS LG270

The SITRANS LG270 is designed for seamless operation and straightforward configuration, ensuring optimal performance for continuous level and interface measurement. The delivery includes the sensor itself, optional accessories, and comprehensive documentation such as operating instructions, safety guidelines, and specific feature instructions. This ensures that customers have all the necessary information to set up the instrument effectively. The operating manual is applicable to various instrument versions and includes critical details for identification and usage.

In terms of operation, the LG270 utilizes high-frequency microwave pulses transmitted along a steel cable or rod. When these pulses encounter the product surface, they reflect back, and the instrument calculates the running time to determine the level. For interface measurement, the sensor effectively distinguishes between two product layers based on their dielectric constants. Users are guided to input key parameters, such as the dielectric constant of the upper medium, to facilitate accurate readings. The instrument is preconfigured for level measurement, but users can easily adjust the settings for specific applications, ensuring versatile use in challenging environments.

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Seamless Mounting and Installation of the SITRANS LG270

Installing the SITRANS LG270 is designed to be straightforward, ensuring optimal performance for level and interface measurement. When mounting the sensor, it's essential to maintain a minimum distance of 300 mm (12 in) from vessel installations or walls, and 500 mm (19.7 in) for non-metallic vessels. This ensures that the probe does not touch any installations during operation, which could affect measurement accuracy. In vessels with conical bottoms, centering the sensor allows for nearly complete measurement down to the lowest point.

For installations in plastic or glass vessels, a metallic surface is required, either through a flange or a metal sheet under the process fitting. The sensor should be flush-mounted with the vessel top whenever possible, avoiding higher or larger diameter sockets that can increase the upper dead zone. Precautions such as removing the electronics module before welding, ensuring the cable is straight without kinks, and using spacers when necessary, all contribute to accurate and reliable measurements. If installing in bypass tubes or standpipes, specific guidelines ensure effective measurement while avoiding contact with the walls. Overall, careful consideration of mounting conditions and requirements facilitates efficient installation and enhances the reliability of the LG270's performance.

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