On‑site Installation of Radar Level Gauge in Underground Manhole

This picture shows the practical installation of radar level gauge inside municipal underground manhole. The instrument is fixed on the pipe base inside the well via flange bracket, equipped with local digital display and signal cable for data transmission. Sewage process pipelines are arranged inside the well with humid and vapor‑rich environment. Adopting non‑contact microwave measurement, the radar level gauge stably monitors sewage level, free from interference of sewage turbidity, foam and water vapor. With high protection grade, it adapts to humid and corrosive underground conditions. Standard signal output connects to pipe‑network monitoring platform for remote data upload. Frequent manhole entry is avoided during installation and maintenance to reduce operation risks. It is widely used in urban drainage pipe networks, sewage and rainwater manholes for real‑time online liquid‑level monitoring, supporting pipe network scheduling and waterlogging early warning.