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Dräger Medical AG & Co. KGaA
Service Mode Savina Version 3.0
Page 81
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Test step 3 is used to display the device operating hours and the service hours. The service hours
can be reset to zero with the "Reset service hours" function. Operating hours and service hours are
not counted while the device is in standby.
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Test step 4 is used to display the operating voltages of the power pack (except for the +48 V for the
blower) and the voltage of the internal battery. Moreover, the status of the external AC supply ”ext.
AC-supply”, external DC supply ”ext. DC-supply” (on-board electrical system or external battery),
internal battery ”int. battery”, and the charge status of the internal battery ”charge state" is
displayed.
Reading
Range
Reading
Range
+5 V)
+4.85 V to +5.53 V
+24 V
+22.8 V to +25.2 V
+15 V)
+14.25 V to
+15.75 V
int. battery
20 V to 28 V
—15 V)
—14.25 V to —15.75 V
Status
Key:
”ext. AC-supply” ”OK”
External AC voltage present.
”ext. AC-supply” ”NC”
External AC voltage not present or faulty.
”ext. DC-supply” ”OK”
External DC voltage present.