Maquet SERVO-i V3.1, User Manual, Page: 110 / 283

108
Servo
…
User´s manual
US edition
Order No: 66 00 261
4
Infant Adult Universal Options
General
Battery modules are used as a power backup
in the Intensive Care Unit (ICU) and during
transportation. The batteries used are
“smart” NiMH 12V re-chargeable batteries.
On delivery, more recent ventilators have two
fixed Battery modules installed, with dummy
modules covering the other four slots. Extra
Battery modules are ordered and delivered
separately.
WARNING! To guarantee safe battery
backup, always use at least two batteries.
Replace the batteries, due to old age, after
two and a half years from their manufacturing
date. The ventilator software will notify when
batteries need to be replaced.
Basic principles
In case of mains power failure, the ventilator
performs an automatic switch to external
+12V (if connected) or to the Battery
modules. In both cases, the ventilatory
settings and stored data remain intact.
The ventilator chooses the Battery module
powered with the highest voltage to be the
prime module for powering the ventilator,
where the other modules adopt an
assistance role. This automatic changeover
enhances system safety in case of a
malfunctioning Battery module.
Important:
• When delivered, the Battery modules may
not be fully charged. Check the status of
the batteries via the User Interface and, if
required, charge the battery before clinical
use. See “Checking battery status” on
page 111.
• Charge new batteries by connecting the
ventilator to the mains power supply.
• Always recharge discharged batteries.
• When not in use, the ventilator should
always be connected to the mains power
supply to ensure fully charged batteries.
• If necessary, batteries can be added
during operation (where free slots are
available).
Caution: When the ventilator is running on
batteries, the Servo Ultra Nebulizer is
disabled to reduce power consumption.
Battery module Servo
-i