This document introduces the principle and characteristics of radar level meter. The radar level meter uses microwave pulses for measurement, and has the characteristics of accurate echo recognition and various process connection methods, suitable for various complex working conditions. This product is safe and harmless, and can be used to measure liquid and solid media.
The WRD60 series radar level meters use ultrasonic echo technology to measure the distance from the sensor to the surface of liquids or solids in a container. The device supports various connection materials, temperature ranges, and pressure ratings, and can output 4‑20 mA or HART signals.
The manual provides principle of operation, installation recommendations, wiring details, safety precautions, and technical specifications for models WRD61, WRD62, WRD63, WRD64 and WRD66. This manual is written in Chinese.
| Maximum range | 20 m (WRD61‑WRD63) |
|---|---|
| Measurement accuracy | ±10 mm (WRD61), ±3 mm (WRD62‑WRD63) |
| Connection material | G12A (stainless steel 316L) |
| Sensor housing material | PP/PTFE or 316L stainless steel |
| Operating temperature range | -40 °C … 120 °C (WRD61‑WRD63) |
| Pressure range | -1.0 bar … 10 bar (WRD61), up to 60 bar (WRD64‑WRD66) |
| Signal output | 4‑20 mA or HART |
| Recommended minimum distance from container wall | ≥300 mm |
The maximum range is 20 m for models WRD61, WRD62 and WRD63.
It provides a 4‑20 mA current loop and can also output HART signals.
The sensor should be installed at least 300 mm away from the container wall.
The device operates from –40 °C up to 120 °C (higher limits for some models).