Installation guide for the DS820 anti‑theft detector covering specifications, wiring, LED operation, performance settings, testing and maintenance.
The DS820 is a three‑technology passive infrared and microwave anti‑theft detector designed for indoor security. It features adjustable detection angles, selectable sensitivity modes, and a three‑color LED indicator for status monitoring.
This guide provides step‑by‑step instructions for installing the detector, wiring connections, configuring LED operation, selecting performance modes, performing walk‑test calibration, routine maintenance, and special installation considerations for environments with pets. This manual is written in Chinese.
| Input Power | 9–15 V DC, 16 mA typical (up to 48 mA in test/fault) |
|---|---|
| Standby Power | 16 mA per hour |
| Anti‑Tamper Switch Rating | 28 V DC, 125 mA |
| Operating Temperature | -40 °C to 49 °C (UL condition 0 °C to +49 °C) |
| Microwave Frequency | DS820 = 10.525 GHz, DS820A = 10.687 GHz, DS820B = 9.9 GHz |
| Detection Range | 10.7 m × 10.7 m |
| Internal Deflection | Vertical +2° to –10°, Horizontal ±10° |
| Optional Accessories | B328 full‑angle bracket, B335 rotating bracket, B338 ceiling mount |
Mount the detector at a height of 1.8 – 2.4 m, with 2 m being the recommended height.
The detector requires a 9–15 V DC supply, drawing about 16 mA normally and up to 48 mA during walk‑test or fault conditions.