SD-ZW900 smart temperature and humidity controller instruction manual, introduces the basic functions, working principles, technical specifications, panel and operation of the product.
The SD‑ZW900 controller uses an advanced microcontroller and high‑performance temperature‑humidity sensor to measure and control both parameters. It features a dual‑line LCD display, programmable upper and lower limits, and alarm outputs via normally‑open contacts.
The manual covers basic functions, working principles, technical specifications, panel operation, installation, wiring diagrams, and safety precautions for use in switchgear cabinets, terminal boxes, and box‑type substations. This manual is written in Chinese.
| Power supply | AC220V ±10% |
|---|---|
| Operating temperature range | -20 °C to +50 °C |
| Relative humidity range | 0 %RH to 95 %RH |
| Temperature accuracy | ±0.5 °C |
| Humidity accuracy | ±5 %RH |
| Power consumption | 5 W |
| Output contacts | AC220V, 3 A (resistive load) – two contacts |
Each output contact is rated for AC220 V, 3 A with a resistive load.
Alarm conditions are indicated through normally‑open contacts that open or close according to temperature or humidity limits.
The controller requires an AC220 V power supply.