EQUIPMENT FOR MONITORING WATER QUALITY

YODA PROFILER

The device monitors marine environmental factors in a cross-section with drag-and-drop method to obtain data on the rectum with high resolution. The device can be deployed on small boats without requiring too much space to deploy. Factors observed from YODA equipment include: depth, temperature, conductivity, salinity, DO, Turbidity, chlorophyll. The unit comes with a device that ensures the balance of the device when free-falling, with a maximum drop rate of 0.2m / s. All data are stored and downloaded to the computer after the monitoring.

• Depth
  • Method: semiconductor
  • Range: 0 – 600 m
  • Accuracy: ± 0.3% FS   
  • Solution: 0.01m
  • Response time: 0.2s
• Temperature
  • Method: Thermistor
  • Range : -3 – 45°C     
  • Accuracy: ± 0.010 C     
  • Solution: 0.001°C
  • Response time: 0.2s
• Conductivity
  • Method: 7 electrodes
  • Range : 0.5 - 70mS/cm-1
  • Accuracy:± 0.01mS/cm-1
  • Solution: 0.001mScm-1
  • Response time: 0.2s
• DO:
  • Method: phosphorescence
  • Range: 0-20 mg L-1
  • Accuracy: ± 2%     
  • Solution: 0.001 to 0.004 mg L-1  (0.01 to 0.04%)
  • Response time: 0.4s
• Turbidity:
  • Method: Backscatter
  • Range: 0-1000FTU  
  • Accuracy: ± 0.3 FTU hoặc ± 2%
  • Solution: 0.03 FTU
  • Response time: 0.2s
• Chlorophyll:
  • Methos: fluorescence
  • Range: 0-400ppb  
  • Accuracy: ±1% FS (0 drift ± 0.1ppb)
  • Solution: 0.01ppb
  • Response time: 0.2s
• Salinity
  • Method: PSS-78
  • Range : 2-42
  • Solution: 0.001
  • Response time: 0.2s