| Water supply type | Direct supply type | Direct supply type |
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| Size (H x W x D) | 370 x 295 x 150 mm | 370 x 295 x 150 mm |
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| Weight | 5 kg | 5 kg |
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| Rated power | AC 220 V / 60 Hz | AC 220 V / 60 Hz |
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| Power supply | 420 W, SMPS type PCB | 420 W, SMPS type PCB |
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| Electrolysis current | DC 0 - 30 V / 420 W, maintained up to 15 A | DC 0 - 30 V / 420 W, maintained up to 15 A |
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| Water pressure / temperature | 3.0 - 3.5 kgf/cm², 4 - 30 °C | 3.0 - 3.5 kgf/cm², 4 - 30 °C |
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| Display | FND display | LCD display |
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| Buttons | Touch type | Touch type |
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| Step 1 water | Hydrogen water | Purified water |
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| Alkaline water | 4 steps (pH 10.5, 9.5, 9.0, 8.5), range pH 8.5 - 11.0 | 4 steps (pH 10.5, 9.5, 9.0, 8.5), range pH 8.5 - 10.5 |
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| Acidic water | 3 steps (pH 6.5, 5.0, 3.5), range pH 6.5 - 3.5 | 3 steps (pH 6.5, 5.0, 3.5), range pH 6.5 - 5.0 |
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| Hydrogen (PPB) | 1,200 - 1,600 | 1,200 - 1,600 |
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| Capacity | 3.5 L/min (alkaline + acidic water) | 3.5 L/min (alkaline + acidic water) |
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| Water supply control | Automatic solenoid type | Automatic solenoid type |
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| Flow detection | Flow meter pulse signal (more than 16 pulses) | Flow meter pulse signal (more than 16 pulses) |
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| Protection | Prevents PCB errors caused by overcurrent | Prevents PCB errors caused by overcurrent |
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| Electrolysis method | Continuous electrolysis | Continuous electrolysis |
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| Electrode plates | 7, 9 or 11 plates (alkaline + acidic + purified); 7+2 or 9+2 plates (alkaline + acidic + hydrogen) | 7, 9 or 11 plates (alkaline + acidic + purified); 7+2 or 9+2 plates (alkaline + acidic + hydrogen) |
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| Septum (membrane) | SUMITOMO | SUMITOMO |
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| Electrode cleaning | Automatic washing after water outgoing (about 10 seconds) | Automatic washing after water outgoing (about 10 seconds) |
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| Water outlet | Dedicated outlets | Dedicated outlets |
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| Filters | 1st: sediment + pre-carbon + post-carbon. 2nd: calcium sulfite, or tourmaline + biostone (choose one) | 1st: sediment + pre-carbon + post-carbon. 2nd: calcium sulfite, or tourmaline + biostone (choose one) |
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| Filter life | Cartridge type, built-in. 6 months (3,600 L) and 12 months (7,200 L) | Cartridge type, built-in. 6 months (3,600 L) and 12 months (7,200 L) |
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| Filter exchange | Icon lights up when the filter must be exchanged. Reset by holding the filter button for 5 seconds. Usage is accumulated by the flow sensor and shown on the display. | Icon lights up when the filter must be exchanged. Reset by holding the filter button for 5 seconds. Usage is accumulated by the flow sensor and shown on the display. |