User manual for Dahua DH1718E(G) series DC regulated power supply covering safety, installation, operation, specifications and maintenance.
The DH1718E(G) series is a dual‑channel DC regulated power supply with automatic CV/CC conversion, high‑precision voltage and current display, and optional fixed 5 V/3 A output. It features low ripple, high‑brightness digital panels, smart temperature‑controlled fan and over‑temperature protection.
The manual provides safety guidelines, inspection steps, detailed panel descriptions, basic operation procedures, storage recommendations and warranty information for laboratory, production and teaching environments. This manual is written in Chinese.
| Output voltage range | 0–35 V (channel 1), 0–70 V (channel 2) |
|---|---|
| Output current range | 0–2 A (channel 1), 0–1.5 A (channel 2), up to 5 A on some models |
| Fixed 5 V output (DH1718G) | 5 V ± 0.1 V, ≥3 A |
| Ripple | 2 mV rms |
| Input voltage | 220 V ± 10 % 50 Hz ± 5 % |
| Dimensions (D×W×H) | 360 mm × 224 mm × 148 mm |
| Weight | ≈9 kg |
| Operating temperature | 0 °C to +40 °C, 20 %–90 % RH |
It requires an AC input of 220 V ± 10 % at 50 Hz ± 5 %.
Turn off the unit, disconnect the power line, use a flat‑head screwdriver to pry out the fuse holder and replace the fuse with the rating shown on the rear panel (e.g., 3 A, 4 A, 7 A).
Yes, channel 1 and channel 2 can be short‑circuited as described to obtain double the voltage in series tracking mode.