Dräger Carina

Instructions for use Carina SW 3.2n 79
Operation
Improving the display accuracy of the charge state of the internal battery
Inaccuracy is indicated when the message
Battery indication not reliable ! is displayed on
the screen.
Improving the display accuracy
1 Connect the power cable. The internal battery is
charged, the LED flashes.
2 Charge the internal battery completely until the
LED remains steady.
3 Disconnect the power cable and, if applicable,
the cable from the external battery, from the de-
vice. The LED is off. Connect the test lung
and operate the device in a mandatory ventila-
tion mode (VC-SIMV, PC-AC, or PC-BIPAP) un-
til it switches automatically to standby mode.
Do not interrupt the battery discharging proce-
dure.
4 Leave the device in standby mode until it shuts
down and the power supply failure alarm is gen-
erated.
5 Set the power switch to .
6 Connect the power cable again. The internal
battery is charged, the LED flashes. Charge
the internal battery completely until the LED
remains steady. Do not interrupt the charging
process.
If there is no improvement, inform DrägerService.
NOTE
Incomplete charging and discharging cycles may
lead to an incorrect display of the charge state of
the internal battery.