Instructions for use | Atlan A300, A300 XL, A350, A350 XL SW 1.0n 279
Technical data
Accuracy ±25 % or ±50 mL/min (the larger value applies)
Resolution of displayed value 1 mL/min
Compliance of the breathing circuit
Range 0 to 9.9 mL/hPa (mL/cmH
2O), measured at
BTPS
Accuracy ±30 % or ±0.2 mL/hPa (mL/cmH
2O) (the larger
value applies)
Resolution of displayed value 0.1 mL/hPa (mL/cmH
2O)
16.14 Gas measurement
Information The device is equipped with a patient-gas mea-
surement module (PGM) for O
2, CO2, N2O, and
anesthetic agent, or with an O
2 sensor.
16.15 Gas measurement with PGM
Information This is a sidestream gas measurement, in
which the sample gas is fed back into the
breathing system.
End-tidal measured values are calculated for
each breath from the local maxima and minima
of the real-time measurements during expira-
tion.
Standardization All data are standardized to ATPS conditions.
Accuracies Due to the T
10...90 time and the sample gas
flow, the measurement accuracies for O
2, CO2,
N
2O, and anesthetic agent may deviate at
respiratory rates of 60 /min or higher and an I:E
ratio of 1:1. The influence of respiratory rate
and the I:E ratio on the accuracy has been veri-
fied in a simulated breathing system using a
rectangular waveform for the gas concentra-
tion.
Sample gas flow 200 mL/min ±10 %
standardized to STPD conditions
Maximum time until emptying of the water trap
is necessary
41 hours (sample gas under BTPS conditions
and 23 °C ambient temperature)
System response time The system response time results from the typi-
cal delay and the gas type specific T
10...90 time.
Sensor sampling rate <50 ms
Time after switch-on until the specified accu-
racy is attained
<480 s
16.13 Measuring systems and displays (continued)
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