GE B20, User Manual

Page: 117 / 160

113
During monitoring
• Empty the water trap container when half full. Follow local
hospital’s regulations to dispose the accumulated fluids.
• Disconnect the airway adapter during nebulization of
medications.
NOTE: When the measured CO
2
value is outside the specified
measurement range, the numeric value is gray.
Points to note
• Make sure that you are using a water trap that is compatible
with the module:
−
E-sCO, E-sCAiO and N-CAiO modules: D-fend Pro or D-fend
Pro+
−
E-miniC: Mini D-fend
• Empty the water trap container as soon as it is more than half
full. With a sample gas temperature of 37°C, a room temperature
of 23°C, and sample gas relative humidity of 100 %RH, the water
trap should be emptied every 24 hours (applies when the sample
gas flow is within 120 ± 20 ml/min for E-sCO, E-sCAiO and N-
CAiO, 150 ± 25 ml/min for E-miniC).
• Place the airway adapter between the HME and Y-piece.
• Place the airway adapter with all sampling ports upwards.
• Always check the tightness of all connections.
• Make sure that the gas sampling line is properly connected to
the water trap and the water trap is properly connected to the
airway gas module. Gas leaks in these connections may dilute
the gas sample from the patient circuit, thus resulting in
erroneous gas readings. During normal operation, all sampled
gas flows out of the sample gas outlet. Room air is used as
reference gas for the oxygen measurement and it is mixed with
the sampled gas. The sampled gas is diluted by room air so that
the fraction of room air in the exhaust gas is about 20%.
• Calibrate the airway gas module every six months in normal use
and every two months in continuous use, see " Cleaning and
care ."