Philips Expression MR400 - Zero Cal

ExpressionMR400InstructionsforUse MonitoringCO2(LoFloOption)7‐15
TocontrolthedisplayfunctionfortheCO2grid
Zero Cal
Initiatesazerocalibration(anautomaticfunctionduringnormaluse)oftheCO2systemtoallow
forthedifferentcharacteristicsofeachaccessorytype.ZeroCalisnotrequiredwhenswitching
samplinglines.
Undercertainconditions,ZeroCalwi llnot beallowed:
•Iflessthan20secondshavepassedsincedetection
ofthelastbreath;
•IftheCO2temperatureisunstable;or
•IfthesamplinglineisdisconnectedfromtheCO2port.
Toperformazerocalibration
Seepage7‐2.
Step Action
1 SelecttheCO2VSbox.
TheCO2menuappears.Currentsettingsaredisplayed.
2LocateGridsandselectthedesiredsetting:
Off
On
Thesettingis
entered.