11-6
2. Set [BTPS Compensation] to [On] or [Off].
11.7.7 Setting Gas Compensation
The presence of interfering gas affects the CO
2
measurement. To get the best possible
measuring result, it is needed to set the gas compensation. The configured concentration
of the interfering gas should be in accordance with its actual proportion.
WARNING
Make sure to use the appropriate compensations. Inappropriate compensations
may cause inaccurate measurement values and result in misdiagnosis.
To set the gas compensation, follow this procedure:
1. Select the CO
2
numeric area or waveform area to enter the [CO2 Setup] menu.
2. Set the O
2
, N
2
O and AA compensation according to the actual amount of the
respective gas in the ventilation gas mixture.
11.7.8 Automatic Barometric Pressure
The CO
2
module has the function of automatic barometric pressure compensation.
11.7.9 Calibrating the CO
2
Module
A calibration should be performed once a year or when the readings go far beyond the
range. For details, refer to 16.6.3 Calibrating CO2.
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