OXYGEN CONTROLLER CO-421


CO-421 is a stationary device used for continuous measurements of oxygen concentration in clean water, sewage or in the air and temperature. Measurement may be made in % or in mg/l in water and in % in the air.

  • The controller is available in three versions:

  • Characteristic features:



    When ordering, the kind and unit of measurement should be specified – water or air and % or mg/l.
    COG-2 oxygen sensor

    Depending on usage, we recommend galvanic oxygen sensors: COG-1, COG-1t with built-in temperature sensor or COG-2 sensor with weight. The sensors may be mounted in immersible or flow heads, chosen depending on the measurement conditions. COG-2 may be used for measurements in water or sewage without the head.



    TECHNICAL DATA
    Function Oxygen % Oxygen % Oxygen mg/l Temperature
    Environment air water water water or air
    Range 0 ÷ 100% 0 ÷ 199.9 % 0 ÷ 19.99 mg/l -50.0 ÷ 199.9 °C
    Accuracy (± 1digit) ±2 %* ±2 %* ±0.2 mg/l* ±1 °C with Pt-1000B probe
    Temperature compensation - 0 ÷ 40°C 0 ÷ 40°C -
    Constant values for measurement in mg/l Air pressure 1013 hPa, salinity 0%
    Dimmensions (mm) / weight L = 149, W = 82, H = 22 / 210g
    Power supply 12 V / 100 mA power adapter
    Relays' parameters 2A/250VAC/30VDC
    Isolation class according to PN-83/T-06500
    Radioelectric interference N level
    * With oxygen sensor, at calibration temperature.