SITRANS LR400 is a radar level transmitter designed for level measurement in medium to large-sized tanks. It uses high-frequency microwave technology to provide reliable measurements even in challenging environments.
This manual covers the installation, configuration, and operation of the SITRANS LR400 level radar. It includes wiring diagrams, auto‑setup procedures, and safety information for proper use.
The document also lists technical data such as temperature ranges, power requirements, measurement range, and communication options (HART and PROFIBUS‑PA). It serves as a reference for technicians and end users to ensure accurate level measurement in tanks. This manual is written in Chinese.
| Extended temperature range | -40°C to 149°C |
|---|---|
| Power supply (AC) | 120–230 Vac, ±15 %, 6 W (12 VA) |
| Power supply (DC) | 24 Vdc, +25 %/‑20 %, 6 W |
| Maximum measurement distance | 45 m (147 ft) |
| Maximum torque | 0.5–0.6 Nm |
It supports HART and PROFIBUS‑PA communication.
The sensor can measure up to 45 m (147 ft).