11.4 Oxygen sensor
Increase in sound pressure level at a distance of 1 m from the device
in patient position as per EN ISO 17510
Max. 0.5 dB(A)
VT 1.5 l
max. permitted flow (flowing off freely) 300 l/min
Internal volume of bacteria filter 85 ml
Therapy pressure range 3 to 35 hPa
Effectiveness of filtration tested to EN 13328-1
Usage time for particulate filter
24 h
Material of housing PC
Housing can be autoclaved in devices to EN 285 134 °C
Oxygen sensor
Measuring range 0-100 % oxygen
Linear fault < 3 % of measuring
range limit value
Response time T
90
< 12 s
Drift (at constant temperature and constant pressure over 6 h)
– 21 % oxygen:
– 60 % oxygen:
< 3 % of
final measured range
value
< 4 % of final
measured range value
Temperature range
– operation
– storage
0 °C to +50 °C
-20 °C to +50 °C
(recommended:
+5 °C to +15 °C)
Permitted humidity in operation and storage 95 % rh
Bacteria filter WM 24148 for leakage ventilation
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