337 Highlandia Drive Baton Rouge, LA 70810 1.800.299.4142 [email protected]




The DO402G is a dissolved oxygen converter that is designed to meet the exacting requirements of measuring dissolved oxygen in the modern industrial environment. It accepts inputs from both galvanic and polarographic sensors and can display/transmit numerous signals including percent saturation, mg oxygen/l water and ppm.

The DO402G supplements conventional temperature compensation with barometric pressure and salinity compensation functions for

higher measurement accuracy. Measurement range is a wide 0 to 50 mg/L for both aerobic and anaerobic water treatment applications. The DO402G converter makes human interface simple. Yes / No dialogues guide operators through programming menus. Automatically compensated values appear in parts per million, mg / liter or percent saturation. Simply select outputs for alarm, control, washtimer and fault to program the system to any level of sophistication. In addition, the DO402G converter features easy operation and self-diagnostic functions which detect stability problems and zero-point errors during calibration, as well as temperature and measurement problems during operation.

  • Versatile sensor inputs
  • On-line sensor checking monitors integrity of membrane
  • Event logbook in software
  • Four fully configurable SPDT contact outputs
  • Two fully configurable mA outputs
  • Built-in PI controller
  • Easy to use EXA control panel

Learn about other Dissolved Oxygen Analyzers available at BBP.

Learn more about this product from Yokogawa here.

Additional information


Chemical, Engineering, Food & Beverage, Oil & Gas, Pharmaceutical, Power Generation, Pulp & Paper, Refining, Water & Wastewater