| Range |
ppm |
ﾛｰﾚﾝｼﾞ/ 0 to 250 mg/
ミドルレンジ / 200 to 500 mg/L
ハイレンジ/ 400 to 750 mg/L |
| °f |
0 to 25; 20 to 50; 40 to 75 |
| °D |
0.0 to 13.9; 11.1 to 27.8; 22.2 to 41.7 |
| °E |
0.0 to 17.5; 14.0 to 35.0; 28.0 to 52.5 |
| Resolution |
1 mg/L (0 to 100 mg/L); 5 mg/L (100 to 750 mg/L) |
Accuracy
(@20°C/68°F) |
±5 mg/L or ±4% of reading (0 to 250 mg/L);
±7 mg/L or ±3% (200 to 500 mg/L); ±10 mg/L or ±2% (400 to 750 mg/L) |
| Light Source |
LED (Light Emitting Diode) 470 nm |
| Light Life |
Life of the instrument |
| Light Detector |
Silicon Photocell |
| Battery Type/Life |
1 x 9V / approx. 40 hours of continuous use;
Auto-off after 10 minutes of non-use |
| Environment |
0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Dimensions |
180 x 83 x 46 mm (7.1 x 3.3 x 1.8”) |
| Weight |
290 g (10 oz.) |
| Method |
Adaptation of the EPA 130.1 method.
The reaction between Ca or Mg and the reagents causes a red-violet tint in the sample. |
