Oxygen measuring device MySign
®
O
28 Doc no.: 065-07-1001825_MySignO_GB-0.pdf / 12.11
4.9 Calibration
The system must be calibrated in accordance with its use, in clean ambient air and at an
oxygen concentration of 21% or using pure oxygen (oxygen cylinder, oxygen supply system) at
an oxygen concentration of 100%.
x Ambient air Æ 21%
x Pure oxygen Æ 100%
Press the relevant function key depending on
the application.
We advise calibrating the system in air or 100% oxygen before every new
measurement or once per day to ensure that the measurements are correct in the
event ambient conditions have changed.
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