5.3.6 Breath cycle time
SVS-5033_XX
This is the length of the breath i.e. the total
cycle time of the mandatory breath in SIMV
(inspiration, pause plus expiration).
Note: The touchpad Breath cycle time is
not shown when an SIMV mode is selected
and inspiration time is configured. Refer to
heading I:E ratio / Inspiration times.
5.3.7 Volume setting
Depending on the ventilator configuration the
inspiratory volume can be set as:
• Minute Volume or,
• Tidal Volume
Note: The configuration is done by a service
technician with a service card.
5.3.8 Controlled / supported pressure level
PC (Pressure Control level) above PEEP is the
set inspiratory pressure level for each
mandatory breath in Pressure Control and
SIMV (PC) + PS, and also for backup
ventilation in Pressure Support.
PS (Pressure Support level) above PEEP is the
set inspiratory pressure support level for
triggered breaths in Pressure Support, SIMV
modes and Bi-Vent/APRV.
5.3.9 O
2
concentration
The setting range for the oxygen concentration
is 21% O
2
to 100% O
2
. The alarm limits are
automatically set at approximately 5% O
2
above or below the set concentration value.
The alarm is delayed 40 seconds after
changing the O
2
concentration setting. There
is also an absolute minimum alarm limit of
18% O
2
which is independent of operating
settings.
5.3.10 Respiratory rate / SIMV rate
Respiratory rate is the number of controlled
mandatory breaths per minute in controlled
modes excluding SIMV. The respiratory rate
is also used for calculation of tidal volume if
the ventilator is configured for Minute volume
setting. SIMV rate is the number of controlled
mandatory breaths in SIMV modes.
60
SERVO-s VENTILATOR SYSTEM V8.0, User's Manual
| 5
| Ventilation, modes and functions |
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