BI-680 Industrial Dissolved Oxygen Controller

Economical industrial online dissolved oxygen meter, 1 or 2 point calibration, 4-20mA signal output, the meter is suitable for water treatment or aquaculture industry to monitor the oxygen concentration or saturation of water quality.

• Economical industrial online dissolved oxygen meter, equipped with a polarographic sensor.
• 1 or 2 point calibration, using air-saturated water or zero oxygen liquid.
• Salinity and atmospheric pressure compensation to eliminate measurement errors.
• Automatic temperature compensation to ensure accurate measurement of the full range.
• Manual temperature calibration to improve the measurement accuracy of the meter.
• RS485 communication output, in line with industrial instrument communication specifications.
• High or low alarm limit, you can customize the hysteresis.
• Setting menu can customize the number of calibration points, temperature unit, etc.
• Reset function, automatically restore the meter to the factory default settings.


 Model BI-680
   Dissolved Oxygen
   Range 0.0 to 20.0mg/L
   Resolution 0.1mg/L
   Accuracy ±0.5mg/L
   % Saturation of Oxygen
   Range 0.0 to 200.0%
   Resolution 0.10%
   Accuracy ±2.0%
   Signal Output 4 to 20mA
   Load Max. 500Ω
   Low or High Alarm 0.00 to 20.00mg/L, selectable
   Communication Interface RS485
   Connection Terminals Detachable screw terminals
   General Specifications
   Calibration Points 1 or 2 points
   Temperature Compensation 0 to 40°C/32 to 104°F, automatic
   Pressure Correction 60.0 to 112.5kPa/450 to 850mmHg
   Salinity Correction 0.0 to 35.0g/L
   Environmental Conditions Ambient temperature <60°C, relative humidity <80%
   Power DC24V
   Dimensions 96(L)×96(W)×75(H)mm
   Weight 350g


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