Zero Gas Calibration

1. Connect the zero-gas scrubber tubing to the calibration port.
2. On the device touchscreen, select "Next".

NOTE: A progress bar shows during the zero gas calibration.

3. When zero gas calibration is complete, the "Results" screen shows. Select "Continue" to go to the next step.

4. On the "Calibration Complete" screen, do one of the following:
a. To continue with span gas calibration, select "Span Gas Calibration". Go to Step (1) in the Span Gas Calibration section below.
b.   To complete zero gas calibration without continuing to the span gas calibration, select "Done", and go to the next step.
c.   To return to the "Results" screen, select "Back".

5. On the bottom of the device, install the cup on the calibration port.
6. Remove the tubing from the calibration port.

7. Disconnect the zero-gas scrubber tubing from the calibration port.
8. On the device touchscreen, select "Next".