Defibtech DDU-120 Series User Manual
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DAC-530E-EN-BH
Defibrillation energy is delivered as an impedance compensated biphasic truncated exponential
waveform. The device delivers 150 Joules into a 50-ohm load when using adult pads or when
using attenuated child / infant pads, 50J of defibrillation energy into a 50-ohm load. Energy
delivered does not change significantly with patient impedance, although the duration of the
generated waveform will vary. The Defibtech AED is designed to deliver up to 150J of defibrillation
energy through a patient impedance range of 25 – 180 ohms or 50J of defibrillation energy when
using the child / infant pads.
Defibrillation and AED operating power is supplied by a replaceable (non-rechargeable) lithium
battery pack that provides for long standby life and low maintenance operation. Battery packs are
available in several configurations optimized for use in specific applications. Each pack is marked
with an expiration date.
The DDU-120 AED records event documentation internally and, optionally, on Defibtech Data Cards
(“DDC”). The optional DDC plugs into a slot in the AED and enables the AED to record event
documentation, and audio (audio enabled cards only) if sufficient space is available on the card.
Audio recording is available only for units with installed audio-enabled Defibtech Data Cards. Event
documentation stored internally can be downloaded onto a DDC for review.
1.2 The Defibtech DDU-120 AED
A.
Speaker. The speaker projects the voice prompts when the DDU-120 AED is on. The
speaker also emits a “beep” when the unit is in standby mode and has detected a condition
that requires operator attention.
B.
SHOCK required indicator. This indicator will flash when a shock is recommended and the
unit has charged and is to deliver a shock. Do not touch the patient while this indicator
is flashing.
C.
“analyzing” LED (Light Emitting Diode). This green LED flashes when the DDU-120 AED is
analyzing the patient’s ECG rhythm.
D.
“do not touch patient” LED. This red LED flashes when the DDU-120 AED detects motion
or other interference that prevents analysis of the signal or when the user should not be
touching or moving the patient.
E.
“check pads” LED. This red LED flashes when the DDU-120 AED detects that the pad
connection to the patient is poor or pads are not applied.
F.
ON/OFF button. Push button to turn the DDU-120 AED on. Push again to disarm and turn
the AED off.
G.
Pads connector port. Insert Patient Pads Connector (item O) into this port to connect pads
to DDU-120 AED.