66 Device functions
BACKUP FREQ
(only point 2 BILEVEL ST20 in BILEVEL S mode)
By activating the backup frequency ventilation will be
automatically restored if patient suffers from a persis-
tent apnea (> 15 s). Evolving mandatory ventilation is
characterized by following fi xed parameters:
• f = 10 bpm
• I:E = 35:65 %.
Selection of backup frequency the physician
1. Select the complete menu (see page 45).
2. Use the selection keys
and to select
Backup freq.
3. Press the the enter key and if necessary,
input the PIN code with the selection keys
and . Press the enter key after every digit.
4. Press the enter key and then use the selec-
tion keys and to select ON or OFF.
Confi rm your setting by pressing the enter key
.
4%/!*1
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