INTRODUCTION
Multi-function controller(Y=51-99)
Y=51:
Groundwater sampling controller
Y=52:
Soil vapor sampling controller
Y=53:
The controller of the flow velocity
Technical analysis parameters of water quality
Water level
| method: |
pressure |
| range: |
0~100m or more |
| accuracy: |
≤±0.25%full scale |
| resolution: |
≤0.01m |
NO3-N
| Method: |
lon-selective electrode or optical |
| range: |
0~10mg/L(or 0~100mg/L) |
| accuracy: |
≤±0.1mg/L(or±5) |
| resolution: |
≤0.1mg/L |
| lower limit: |
≤2mg/L |
| zero drift: |
≤±5% |
| range drift: |
≤±5% |
Nitrite
| method: |
C10H7-NH-CH2-CH2-NH2·HCI Photometry |
| range: |
0~2/10/50 mg/L(extensible) |
| lower limit of quantification: |
0.2mg/L |
| Indication error: |
±5% |
| zero drift: |
±3% |
Chloride
| method: |
lon-selective electrode |
| range: |
0~500 mg/L(extensible) |
| accuracy: |
±5% |
| repeatability: |
≤5% |
Sulfate
| method: |
spectrophotometry |
| range: |
0~1000mg/L(extensible) |
| accuracy: |
±10% |
| repeatability: |
≤5% |
ORP
| method: |
electrode |
| range: |
-999~999mV |
| accuracy: |
≤士20mV |
| resolution: |
≤1mV |
Conductivity
| method: |
electrode |
| range: |
0~200mS/cm |
| accuracy: |
≤±2% |
| resolution: |
≤0.01mS/cm |
As
| method: |
voltammetry or spectrophotometry |
| range: |
0~2mg/L(extensible) |
| accuracy: |
±10% |
| zero drift: |
±5% |
| range drift: |
±10% |
Cyanide
| method: |
C6H5N02-C4H4N203spectrophotometry |
| range: |
0~0.5mg/L(extensible) |
| repeatability: |
≤5% |
| accuracy: |
±5% |
| zero drift: |
±5% |
NO3-
| method: |
spectrophotometry |
| range: |
0~50mg/L(extensible) |
| accuracy: |
±5% |
| zero drift: |
±5% |
Temperature
| method: |
electrode |
| range: |
-5°C~50°C |
| accuracy: |
≤±0.5°C |
| resolution: |
≤0.1℃ |
Ammonia nitrogen
| method: |
lon-selective electrode |
| range: |
0~20mg/L |
| accuracy: |
≤±5% |
| resolution: |
≤0.01mg/L |
| lower limit: |
≤0.1mg/L |
Cr6+
| method: |
spectrophotometry |
| range: |
0~1.0mg/L(extensible) |
| accuracy: |
±5% |
| zero drift: |
±5% |
Fluoride
| method: |
lon-selective electrode |
| range: |
0~5 mg/L(extensible) |
| accuracy: |
±10% |
| precision: |
≤5% |
| zero drift: |
±5% |
| range drift: |
±5% |
iodide
| method: |
lon-selective electrode |
| range: |
0.0~0.5mg/L(extensible) |
| accuracy: |
±5% |
| repeatability: |
≤5% |
Turbidity
| method: |
optical |
| range: |
0~3000NTU |
| accuracy: |
≤±5% |
| resolution: |
<1.0NTU |
PH
| method: |
glass electrode |
| range: |
0~14PH |
| accuracy: |
≤±0.2pH |
| resolution: |
≤0.01PH |
Homomethylate
| method: |
KMn04oxidation-titration |
| range: |
0~20mg/L,20~200mg/L(extensible) |
| Indication error: |
±5% |
| zero drift: |
±3% F.S |
| range drift: |
±3% F.S |
Dissolved oxygen electrodes
| method: |
fluorescence |
| range: |
0~20mg/L |
| accuracy: |
≤0.15mg/L |
| zero drift: |
±0.2mg/L |
| range drift: |
±0.2mg/L |
| Indication error: |
±0.3mg/L |
Anionic surfactants
| method: |
spectrophotometry |
| range: |
0~5mg/L,adjustable |
| accuracy: |
±10% |
| repeatability: |
≤5% |
Flow velocity
| measure: |
particle image recognition measurement |
| flow rate range: |
0-30mm/s |
| flow rate precision: |
0.01um/s |
| direction precision: |
±1° |
