Operating instructions

LIFEPAK 500 Automated External Defibrillator Operating Instructions 5-5
©1996–2003 Medtronic Physio-Control Corp.
Maintenance
5 Maintenance
Note: If the battery has been adequately charged to deliver therapy, you will see OK on the
Readiness Display and the
BATTERY OK message on the LCD during the self-test. If the battery is
low, you will see a battery indicator on the Readiness Display, an illuminated battery indicator on the
device key panel, and the
LOW BATTERY message on the LCD. When the LOW BATTERY message first
appears, the device will provide eleven or more shocks for a nonrechargeable battery and six or
more shocks for a rechargeable battery. If the battery is very low, the
REPLACE BATTERY message
displays and the battery indicator on the key panel flashes. When the
REPLACE BATTERY message
first appears, the device will provide three or more shocks.
Auto Tests
The AED periodically performs auto tests. During an auto test, the AED displays the following message:
If the AED detects a problem during an auto test that requires service but does not prevent AED use, it
displays the service indicator the next time you turn on the AED.
If the AED (monophasic AEDs only) detects a problem during an auto test that requires immediate
service, it activates an intermittent, audible alarm.
Note: It is important that when the AED is stored with the battery installed, temperature exposure
should not fall below 0°C (32°F) or exceed 50°C (122°F). If the AED is stored outside this
temperature range, the auto tests may erroneously detect a problem and the AED may not operate
properly.
Daily Auto Test
Every day at 0300 (3:00 am) the AED automatically performs the following tasks:
Turns itself on (the
ON/OFF LED illuminates briefly).
Performs self-test (
SELF-TEST message displays).
Stores the results in the Test Log.
Turns itself off.
On a regular basis, the Daily Auto Test will test for low or replace battery conditions.
The Daily Auto Test is not performed if the AED is already turned on at 0300 or if the battery is not
installed. If the AED is turned on while the Daily Auto Test is in progress, the test is halted; the AED will
turn on normally.
Extended Auto Test
The AED automatically turns on and performs the Extended Auto Test on a regular basis at 0300. In the
Extended Auto Test, the AED performs the following tasks:
Turns itself on (the
ON/OFF LED illuminates briefly).
Performs Extended Self-test (
SELF-TEST message displays).
Stores the results in the Test Log.
Turns itself off.
To use the AED when the Extended Auto Test is in progress, push
ON or connect the electrodes to the
patient. The test will be halted and the AED will operate normally. The Extended Auto Test is not
performed if the AED is already turned on at 0300 or if the battery is not installed.
BATTERY OK
SELF-TEST xx.xx