Introduction
Multifunctional Controller (Y=51-99)
Y=1:
Groundwater Sampling Controller
Y=2:
Soil Gas Sampling Controller
Y=3:
Flow Rate and Direction Controller
Water Quality Technical Analysis Parameters
Water Level Technical Parameters
| Testing Method |
Pressure Method |
| Measurement Range |
Over 0～100m |
| Accuracy |
≤±0.25% Full Scale |
| Resolution |
≤0.01m |
Nitrate Nitrogen Technical Parameters
| Testing Method |
Ion Selective Electrode Method or Optical Method |
| Measurement Range |
0~10mg/L (or 0~100mg/L) |
| Accuracy |
≤±0.1mg/L (or ±5) |
| Resolution |
≤0.1mg/L |
| Lower Limit of Determination |
≤2mg/L |
| Zero Drift |
≤±5% |
| Span Drift |
≤±5% |
Nitrite Technical Parameters
| Determination Method |
N-(1-Naphthyl)-ethylenediamine Spectrophotometry |
| Measurement Range |
0～2/10/50 mg/L (expandable) |
| Lower Limit of Quantification |
0.2mg/L |
| Indicated Error |
±5% |
| Zero Drift |
±3% |
Chloride Technical Parameters
| Measurement Method |
Ion Selective Electrode Method |
| Measurement Range |
0~500 mg/L (expandable) |
| Accuracy |
±5% |
| Repeatability |
≤5% |
Sulfate Technical Parameters
| Measurement Method |
Spectrophotometry |
| Measurement Range |
0~1000mg/L (expandable) |
| Accuracy |
±10% |
| Repeatability |
≤5% |
Redox Potential Technical Parameters
| Testing Method |
Electrode Method |
| Measurement Range |
-999~999mV |
| Accuracy |
≤±20mv |
| Resolution |
≤1mV |
Water Temperature Technical Parameters
| Testing Method |
Electrode Method |
| Measurement Range |
-5°C～50℃ |
| Accuracy |
≤±0.5℃ |
| Resolution |
≤0.1℃ |
Conductivity Technical Parameters
| Testing Method |
Electrode Method |
| Measurement Range |
0～200mS/cm |
| Accuracy |
≤±2% of Reading |
| Resolution |
≤0.01mS/cm |
Heavy Metal - Arsenic Technical Parameters
| Measurement Method |
Voltammetry or Spectrophotometry |
| Measurement Range |
0～2mg/L (expandable) |
| Accuracy (Indicated Error) |
±10% |
| Zero Drift |
±5% |
| Span Drift |
±10% |
Cyanide Technical Parameters
| Measurement Method |
Isonicotinic Acid-Barbituric Acid Spectrophotometry |
| Measurement Range |
0～0.5mg/L (more ranges can be expanded) |
| Repeatability |
≤5% |
| Accuracy |
±5% |
| Zero Drift |
±5% |
Nitrate Nitrogen Technical Parameters
| Measurement Method |
Spectrophotometry |
| Measurement Range |
0~50mg/L (expandable) |
| Accuracy |
±5% |
| Zero Drift |
±5% |
Turbidity Technical Parameters
| Testing Method |
Optical Method |
| Measurement Range |
0~3000NTU |
| Accuracy |
≤±5% |
| Resolution |
<1.0NTU |
Ammonia Nitrogen Technical Parameters
| Testing Method |
Ion Selective Electrode Method |
| Measurement Range |
0~20mg/L |
| Accuracy |
≤±5% |
| Resolution |
≤0.01mg/L |
| Lower Limit of Determination |
≤0.1mg/L |
Heavy Metal - Hexavalent Chromium Technical Parameters
| Measurement Method |
Spectrophotometry |
| Measurement Range |
0～1.0mg/L (expandable) |
| Accuracy |
±5% |
| Zero Drift |
±5% |
Fluoride Technical Parameters
| Analysis Method |
Ion Selective Electrode Method |
| Measurement Range |
0～5 mg/L (expandable) |
| Accuracy |
±10% |
| Precision |
≤5% |
| Zero Drift |
±5% |
| Span Drift |
±5% |
Iodide Technical Parameters
| Measurement Method |
Ion Selective Electrode Method |
| Measurement Range |
0.0～0.5mg/L (expandable) |
| Accuracy |
±5% |
| Repeatability |
≤5% |
PH Technical Parameters
| Testing Method |
Glass Electrode Method |
| Measurement Range |
0~14PH |
| Accuracy |
≤±0.2pH |
| Resolution |
≤0.01PH |
Permanganate Technical Parameters
| Measurement Method |
Potassium Permanganate Oxidation-Titration Method |
| Measurement Range |
0～20mg/L, 20～200mg/L (range expandable) |
| Indicated Error |
±5% |
| Zero Drift |
±3%F.S |
| Span Drift |
±3% F.S |
Dissolved oxygen electrode technical parameters
| Determination Method |
Fluorometric method; |
| Measurement Range |
0～20 mg/L |
| Accuracy |
≤0.15mg/L |
| Zero Drift |
±0.2mg/L |
| Span Drift |
±0.2mg/L |
| Indicated Error |
±0.3mg/L |
Anionic surfactant technical parameters
| Measurement Method |
Spectrophotometry; |
| Measurement Range |
0～5mg/L, adjustable; |
| Accuracy |
±10% |
| Repeatability |
≤5% |
Groundwater flow velocity and direction instrument technical parameters
| Measurement Method |
Example image recognition measurement technology |
| Flow velocity measurement range |
0~30mm/s |
| Flow velocity measurement accuracy: |
0.01um/s |
| Azimuth measurement accuracy: |
±1° |
