User manual for the Aier AMRL600 series radar level gauge covering principle, installation, wiring and technical specifications.
The AMRL600 series radar level gauge uses time‑of‑flight measurement to convert echo time into level signals. It supports 4‑20 mA/HART output and can measure liquids, solids and powders in tanks up to 20 m (cable) or 6 m (rod).
The manual provides detailed installation guidance for cable‑type, rod‑type and coaxial probes, wiring instructions, and a full set of technical parameters such as accuracy, range, power requirements and explosion‑proof ratings. This manual is written in Chinese.
| Measurement range (cable probe) | 0‑20 m |
|---|---|
| Measurement range (rod probe) | 0‑6 m |
| Resolution | 1 mm |
| Repeatability | ±3 mm |
| Output signal | 4‑20 mA (HART optional) |
| Power supply | 24 VDC ±10 % |
| Operating temperature | -20 °C ~ +60 °C |
| Process pressure | -1 bar ~ 60 bar |
| Frequency range | 100 MHz‑1.8 GHz |
| Protection rating | IP68, Exd II BT4 |
The cable‑type probe should be installed at least 50 cm away from the tank wall.
Supply 24 VDC to the instrument and add a 250 Ω resistor in series unless the instrument has an internal 250 Ω HART resistor.
The rod‑type probe can measure up to 6 m.