Foxboro LR74 24 GHz Radar Level Transmitter

LR74 Level Transmitter

The Foxboro LR74 (now part of Schneider Electric) is a 24 GHz FMCW free-space radar transmitter specifically engineered for non-contact continuous level measurement of aggressive, corrosive, and chemically challenging liquids. It provides reliable, precise readings even in environments with vapor, condensation, or chemical fumes.

Ideal for:

• Chemical and Petrochemical
• Tanks with obstructions
• Tanks with corrosive fluids
• Water/ Wastewater
• Storage Terminals

Features:

• 24 GHz FMCW radar
• Corrosive and vapor resistant
• Optimized for agitated fluids
• ~8° beam angle
• Operating range up to 100 meters
• +/- 2mm accuracy
• Smart echo processing
• Flush-mount peek lens
• Clean-in-place suitable
• Threaded, flanged, or flush process connections
• IP66/IP67 enclosure rating
• –40 °C to +130 °C operating temperature
• ATEX/IECEx certified
• 2-wire loop powered using HART 7
• Remote configuration

Optional Features:

• Local display module
• Purge ports

Document Downloads:

• LR74-Data Sheet
• LR74-Data Sheet(2020)
• LR74-User Guide
• LR74-Instructions
• LR74-Spec Sheet