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Adjust the CO2 concentration in the same way as you set the temperature, by pressing the CO2 display and changing the set point (below, C)
GFP4 only
In addition, for GFP4, you must also specify the air source that the gas mixer uses to achieve the desired gas mix, otherwise the CO2 set point will not be reached. To specify the air source, press the cog button on the left of the Oko-Touch screen (below, D). Press Gas (E), then press Air Source (F). Press Air Pump to start supplying air (G). Press the Home button to return to the main display.
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Turn off the CO2 supply by reducing the CO2 set point to 0.0%. You On GFP4 you must also turn off the Air Pump by setting the Air Source to Compressed Air (see G above). If no-one will be using the chamber after you or if the next user wants to use the microscope at room temperature you should turn off the system using the switch on the Oko-Touch controller.