Host | Determination project | COD hight range | COD low range | Ammonia nitrogen |
Detection wavelength | 610±20nm | 420±20nm | 420±20nm | |
Measuring range | 10-5000mg/L(Section) | 2-150mg/L(Section) | 0.02-30mg/L(Section) | |
measurement precision | COD<50mg/L,≤±10% COD>50mg/L,≤± 5% |
≤ ±10% | ≤ ±10% | |
minimum detection limit | 0.1mg/L | 0.1mg/L | 0.01mg/L | |
Determination time | 20Minute | 20Minute | 10~15Minute | |
Batch processing | 15/30 (optional) water | 15/30 (optional) water | 20 water samples (Extended) | |
Repetition | ≤±5% | ≤±5% | ≤±5% | |
Light source life | 100000 hours | |||
Optical stability | ≤0.001A/20Minute | |||
Resistance to chloride interference | [Cl-]<1000mg/LNo effect [Cl-]<4000mg/L(Optional) |
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Colorimetric method | Colorimetric tube, colorimetric container | |||
Data storage | 1.2Million | |||
number of curves | 180Article | |||
Display mode | Color LCD (Resolution 320x240) | |||
Communication interface | USB/Infra-red (Matching) | |||
Power supply mode | 220V |