Defibtech DDU-120 Series - Manual (Page 37)

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DAC-530E-EN-BH
5 Maintaining and Troubleshooting the
DDU-120 AED
This chapter describes the maintenance and troubleshooting procedures for the DDU-120 AED.
The Self-Tests that are performed by the device are described along with the frequency and nature
of periodic maintenance for which the owner/operator is responsible. A troubleshooting guide is
provided to help diagnose user serviceable problems.
The DDU-120 AED contains no user serviceable parts except for the ASI 9V battery.
5.1 Self-Tests
In order to test the basic operation of the unit, a power-on Self-Test is performed every time the unit
is powered-on. The unit also automatically performs daily, weekly, monthly and quarterly Self-Tests
as long as a non-depleted 9V battery is present (without any intervention from the operator) to check
the integrity of the unit’s hardware and software. A manual Self-Test may be run to comprehensively
test the units systems, including charging and shocking. Refer to section 3.6 for instructions on how
to perform a manual Self-Test.
Note that Self-Test shocks are internally dissipated so that no voltage is ever present at the pads.
5.2 Routine Maintenance
The DDU-120 AED is designed to be very low maintenance. Simple maintenance tasks are
recommended to be performed regularly by the owner/operator to ensure its dependability (see
sample maintenance table below). Different maintenance intervals may be appropriate depending
on the environment where the AED is deployed, and ultimately the maintenance program is at the
discretion of the emergency response program’s medical director.
Daily Monthly After Each Use Action
• • •
Check that Active Status Indicator (ASI) is flashing green
• •
Check the condition of the unit and accessories
•
Run manually initiated self-test
•
Replace pads
•
Check pads and battery pack expiration dates
•
Check the DDC, if one was installed
Note: If the unit has been dropped, mishandled, or abused, a manually initiated self-test should
be performed.
SAMPLE