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Chapter 14: GAS Monitoring (Sidestream)
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SIGNAL SWEEP
Select it to adjust Multi-gas signals sweep. Available options for SIGNAL SWEEP
are 3, 6, 12/5 and 25mm/s.
■
SIGNAL SCALE
Depending on selected signal chosen by user different scale options are available as
following table:
CO2 Waveform Scale
0-50 mmHg, 0-6%
0-100 mmHg, 0-10%
0-200 mmHg, 0-20%V
<AUTOSCALE>
AUTOSCALE is an option to adjust the scale automatically to display waveform in the best
way.
■
WAVEFORM
Pick this item to select which gas waveform is displayed on the screen. Available
Options are CO2, N2O, O2, and AA.
■
O2 COMPENSATE
The presence of oxygen can cause some interference in CO2 measurement. This is
known as spectral broadening, and must be compensated.
The O2 compensation is performed automatically for all ISA sensors with the oxygen
sensor available on it. When using an ISA without an oxygen sensor, i.e. when
oxygen measurement is performed by the other device like anesthesia machines and
ventilators, the current oxygen concentration should be transmitted to the sensor.
When there is not O2 sensor, available options for COMPENSATE are OFF and 1-
100% O2. If there is O2 sensor, only "AUTO" will be available and it cannot be
changed.
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N2O COMPENSATE
The presence of N2O can cause some interference in CO2 measurement. This is
known as spectral broadening and must be compensated.
N2O is measured and automatically compensated for in ISA sensors (AX+/OR+).
Therefore N2O concentration should be transmitted to ISA sensor (CO2).
Available options are 0-100% N2O.
NOTE:
You can see this option only when ISA (CO2) sensor is connected to the system.
In other modes (ISA AX+/OR+), this option is eliminated from the respective
O2 Waveform Scale
0-50%
0-100%
<AUTOSCALE>
14-14
N2O Waveform Scale
0-50%
0-100%
<AUTOSCALE>
User Manual
AA Waveform Scale
1,2,3,5,10,20%
<AUTOSCALE>
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