16-6 Passport 12/Passport 8 Operator’s Manual
For the sidestream and microstream CO
2
module, you can set the humidity compensation on or off according to the
actual condition. To set the humidity compensation:
1. Select the CO
2
parameter window to access the [CO2 Setup] menu, and then select [BTPS Compen].
2. Select either [On] for BTPS or [Off] for ATPD, depending on which compensation applies.
16.4.6 Setting the Apnea Alarm Delay
To set the apnea alarm delay:
1. Select the CO
2
parameter window to access the [CO2 Setup] menu.
2. Select [Apnea Delay] and then select the appropriate setting.
The monitor will alarm if the patient has stopped breathing for longer than the selected apnea time. The setting of
[Apnea Delay] takes effect simultaneously to the Resp, CO
2
, and AG modules.
WARNING
The respiration measurement does not recognize the cause of apneas. It only indicates an alarm if no breath
is detected when a pre-adjusted time has elapsed since the last detected breath. Therefore, it cannot be
used for diagnostic purpose.
16.4.7 Choosing a Time Interval for Peak-Picking
For microstream modules, you can select a time interval for picking the highest CO
2
as the EtCO
2
and the lowest as the
FiCO
2
.
To set the time interval:
1. Select the CO
2
parameter window to access the [CO2 Setup] menu.
2. Select [Max Hold]
3. Select [Single Breath], [10 s], [20 s] or [30 s]
[Single Breath]: EtCO
2
and FiCO
2
are calculated for every breath.
[10 s], [20 s] or [30 s]: EtCO
2
and FiCO
2
are calculated using 10, 20 or 30 seconds of data.
16.4.8 Setting the Flow Rate
For the sidestream CO
2
module, you can change the sampling rate of respiratory gas in the patient’s airway by setting
the flow rate.
To set the flow rate:
1. Select the CO
2
parameter window to access the [CO2 Setup] menu.
2. Select an appropriate setting from [Flow Rate].