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Calibration
6.
Keeping the unit still, pump 3 to 6 liters of air through the Mouthpiece.
While pumping, the unit records the volume being pumped through the
Mouthpiece and indicates it on the display.
7.
Press the START/STOP key when finished pumping.
8.
Enter the reference volume of air (depending on the size of the calibration
pump and times of pumping; e.g. a 2 litre pump pumped 3 times = 6
liters). Confirm with ENTER.
9.
The message `Calibration OK` appears on the display.
If the message `EXCESSIVE DEVIATION! exchange screen` appears on
the screen after a calibration, it indicates that the difference between the
measured volume and the entered volume is too great. Check the
temperature setting, the syringe volume and the entered syringe volume
and recalibrate.
