Monitor Module Product Specifications
9 - 16 046-003777-00 A5/A3â„¢ Operating Instructions
NOTE: Inaccuracy specifications are affected by the breath rate and I:E change.
The end-tidal gas reading is within specification for breath rate below
15BPM and I:E ratio smaller than 1:1 relative to the gas readings
without breath; Add ±6%REL to inaccuracy for HAL and O2 for breath
rate larger than 15 BPM; Add ±6%REL to inaccuracy for all gases for
breath rate larger than 30 BPM (inaccuracy for HAL and O2 are
unspecified in this case); inaccuracy is unspecified for breath rate larger
than 60 BPM.
NOTE: The ability to properly resolve end-tidal values can be measured by
using the set-up described in ISO 80601-2-55:2011 figure 201.101. In
short, the method consists of sampling gas from two different sources
connected to an electrically controlled pneumatic valve to permit rapid
switching between the two sources. During the test, the valve is set to
switch gas source at a number of frequencies (simulating the range of
specified breath rates) and for each frequency the end-tidal value
presented by the gas analyzer is noted. From a diagram of end-tidal
value over frequency, the frequency at which the gas analyzer is no
longer able to resolve end-tidal values according to specification is
identified. This ability to properly resolve end-tidal values is listed in
the corresponding AION
TM
Multigas Analyzer technical specification.
NOTE: Data sample rate 25 Hz. Data presentation is 50 Hz, every second data
point is interpolated.
NOTE: Inspiratory and end tidal CO2 concentration readings are identified by
AION
TM
Platinum Multigas Analyzers using the lowest and highest
values respectively of the temporal CO2-curve. Corresponding
readings of N2O and anesthetic agents are taken at the same point in
time. Inspiratory and end-tidal O2 concentration readings are
identified by the O2 mean value during the respiratory phase as
identified by the temporal CO2 curve. Once correctly identified, the
highest and lowest O2 concentration readings during each part of the
phase will be presented as inspiratory and end-tidal O2 respectively.
NOTE: The rated respiration rate measurement range for AG module is 2 to
100 bpm. The data sample rate is 25 Hz. The EtCO
2
concentration
reading uses the highest value of the CO
2
waveform within the
breathing cycle. The EtN
2
O and EtAA concentration readings use the
value measured at the moment when the EtCO
2
concentration is
recorded. The FiO
2
concentration reading uses the highest value of the
O
2
waveform within the breathing cycle.
NOTE: The rated respiration rate measurement range for AG module is
calculated based on the CO
2
waveform. The test method used to
determine the rated respiration rate range: Utilize the valves to switch
the two sampling gases at different frequencies (simulating specified
breath rates). Record the EtCO
2
value at each frequency. By drawing the
coordinate diagram which indicates the corresponding relationship
between end-tidal value and breathing frequency, the range of
breathing frequency can be obtained.
Measurement accuracy drift Meets accuracy requirements within 6 hours
Rate measurement Measurement range: 2 rpm to 100 rpm
Resolution: 1 rpm
Measurement accuracy:
2 rpm to 60 rpm: ± 1 rpm
60 rpm to 100 rpm: ± 2 rpm
1):
10 % to 90 %. Sample gas flow: 200 ml/min. DRYLINE
TM
watertrap. Adult DRYLINE
TM
sampling line (2.5 m).
2):
10 % to 90 %. Sample gas flow: 120 ml/min. DRYLINE
TM
watertrap. Pediatric DRYLINE
TM
sampling line (2.5 m).
TABLE 9-21
AG Module
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