METRON QA-45, Руководство пользователя и обслуживания, Страница: 32 / 74

The Wave Amplitude Menu appears:
Select the desired amplitude by pressing UP (F2) or DOWN
(F3) . Save this under ‘Ampl” in the STATUS field by pressing
SELECT (F4) . Press CANCEL (F5) to cancel selection.
4. Set the defibrillator to synchronized cardioversion mode. Dis-
charge the defibrillator over the instrument's load resistance.
5. QA-45 measures the time delay in milliseconds (ms) between the
top of the 'R' wave and the discharging of the defibrillator
pulse. This delay will be shown in the LCD display as: 'Delay:
xxx ms'.
QA-45 also shows the energy measured, the maximum voltage
and the maximum current in the energy wave. Following the
discharge from the defibrillator, QA-45 shows a playback of the
wave from the ECG output. A new pulse can be generated when
the LCD display shows 'LOCAL'.
4.5 Maximum Energy
Charging Time Test
1. The charge time function is used to test the battery and the
charging capacitor in the defibrillator.
2. Set the defibrillator to maximum energy.
3. Securely place the defibrillator paddles on the QA-45 contact
plates, and discharge the defibrillator. The APEX (+) pad
should be connected to the right-hand plate, and the STERNUM
pad to the left plate. This ensures correct signal polarity for the
oscilloscope output. A reversal of this configuration will not
damage the QA-45, nor will it give incorrect energy readings.
However, the polarity of the oscilloscope output will simply be
reversed. The discharge from the defibrillator is transferred to
the QA-45's load resistance.
4. Select CHARGE TIME (F3) from the main menu and the
charge button on the defibrillator simultaneously.
APEX (+) pad
→
right plate
STERNUM pad
→
left plate
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