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4.
Calibration
•
Calibration is required when a known content of CO
2
is measured and value deviates by more than
0.1 - 0.2 g/L
5.
Battery charging
•
When the display shows
LoBAT
; charge the battery
•
Connect the battery charger into the device and into the
power supply
6.
Replace needles, filters and valves
•
Change needle, filter and valve in case of aberrantly values or if particles or liquid has been sucked