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- Compact, pocket-size
- Auto power-off
- Auto temperature compensation (* Not applicable for the model SK-630PH)
- Waterproof (IPX4 grade of the Japanese waterproof standard JIS C 0920)
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| Cat. No. | 6416-00 | 6418-00 | 6420-00 | |
| Model | SK-630PH | SK-631PH | SK-632PH | |
| Measuring range | pH | 2.0 to 12.0pH | 2.0 to 12.0pH | 2.0 to 12.0pH |
| °C | - | 0.0 to 50.0°C | 0.0 to 50.0°C | |
| Accuracy | pH | ±0.6pH | ±0.5pH | ±0.4pH |
| °C | - | ±0.1°C | ±05°C | |
| Resolution | pH | 0.1pH | 0.1pH | 0.01pH |
| °C | - | 0.5°C | 0.1°C | |
| Elements | pH | Glass electrode | Glass electrode | Glass electrode |
| °C | - | Thermistor | Thermistor | |
| Measuring ambient | 0 to 50°C | |||
| Power requirement | Alkaline Batteries LR44(GPS76E) x 4 pcs. | |||
| Battery life | About 20 hours continuous | |||
| Materials | Case : ABS resin Sensor : Glass | |||
| Dimensions | (W)36 x (H)150 x (D)25mm | |||
| Weight | About 65g (inclusive of batteries) | |||
| Functions | Calibration function, Auto temperature compensation(*1) HOLD. Auto power-Off, (possible to cancel the auto power-off) |
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| Waterproof property | JIS C 0920 IPX4 | |||
| Standard accessories | Instruction manual, Alkaline battery LR44(GPS76E) x 4 pcs: Factory set- Alkaline battery LR44(GPS76E) x 4 pcs |
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*1. Not applicable for the model SK-630PH
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| Cat. No. | Remarks |
| 6400-30 | PHP-31 Glass Electrode Probe for SK-620PH |
| 6414-00 | 610S-II Glass Electrode for SK-610PH-II |
| 6424-00 | 640S-1 Glass Electrode Probe for SK-640PH-II |
| 6425-00 | 640S-2 Glass Electrode Probe for SK-640PH-II |
| 6400-52 | AC adaptor (100VAC) for SK-620PH and SK-640PH |
| 7687-90 | Cable for RS-232C output for SK-620PH and SK-640PH |
| 6401-10 | Phthalate solution (pH4.01): 500ml |
| 6402-10 | Neutral phosphate solution (pH6.86): 500ml |
| 6403-10 | Carbonate solution (pH10.01): 500ml |