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
2
O), measured at
BTPS
Accuracy
±30 % or ±0.2 mL/hPa (mL/cmH
2
O) (the larger
value applies)
Resolution of displayed value
0.1 mL/hPa (mL/cmH
2
O)
16.14 Gas
measurement
Information
The device is equipped with a patient-gas mea-
surement module (PGM) for O
2
, CO
2
, N
2
O, 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
, CO
2
,
N
2
O, 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)
