The AL808 series intelligent controller adopts a variety of advanced technologies at the international level, and has the characteristics of high measurement accuracy, strong anti-interference performance, complete functions, and simple operation. It is widely used in temperature, humidity, pressure, weighing, flow, liquid level, acidity and other industrial measurement and control fields.
This manual describes the AL808 series smart digital controller, covering its features, hardware modules, and wide range of industrial measurement applications such as temperature, humidity, pressure, flow and level. It explains how to install the controller, connect power and signal wiring, and configure the panel and software parameters.
Detailed sections include panel display and operation, PID tuning, fault indication, linear input calibration, curve‑program control, serial communication interfaces, optional functions and technical data. The document is intended for end‑users and technicians who need to set up and maintain the controller in harsh industrial environments. This manual is written in Chinese.
| Measurement accuracy | ±0.2% of full scale |
|---|---|
| Input signal range | -10 mV to +50 mV |
| Power supply | 85 V‑264 V AC, 45/60 Hz |
| Operating temperature | 0 °C to 50 °C, humidity ≤85 % |
| Output types | Relay (250 V AC, 3 A), Logic level 20 V/10 mA, SSR, SCR |
Press the ▲ or ▼ keys to change the setpoint value.
Press the A/M key to toggle between automatic and manual control without disturbance.
The controller can use RS232, RS485, or RS422 digital communication.
Follow the linear process calibration steps in the manual to calibrate non‑linear inputs.