1. Power supply: 380V/50Hz, three-phase five-wire system, reliable grounding;
2. Ambient temperature: 5～35℃;
3. Environmental humidity: ≤80%RH;
4. Pure water equipment installation site: the ground is flat and waterproof, with unblocked drainage floor drains or drainage ditches, and no direct sunlight;
5. Avoid running in strong magnetic or magnetic interference environment.
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