CheckPoint 3 EN User Guide 67
P/N 340486-B
09/2017
Calibrate: 0% CO2
1. Select Calibrate: 0% CO2.
The following warning appears:
Tap Ye s .
2. When the next warning appears...
...make sure that the needle is exposed to the appropriate calibration gas, and then tap
Ye s .
3. The pump starts to suck gas through the device and the current readout is displayed.
NOTE! The pump will run for approx. 40 s. and if you do not tap “Perform
calibration” within this time, the pump stops and the device returns to the
“Calibration” start screen without performing any calibration. The same
happens if you press the button or tap the button in the upper right
corner.
When readout has stabilized, tap Perform calibration.
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