Discharge Circuit; Defibrillation Pulse Output; Safety Discharge; Test Features - GE Dash Responder Servicing Instructions

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Discharge Circuit

Figure 11-1. Current discharge curve (360 J)
serial oscillating circuit in series with external resistance (patient):
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capacitance 34 µF
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inductance 26 mH
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equivalent resistance 11 Ohms

Defibrillation Pulse Output

isolated, no conductive connection with enclosure, open-circuit and short-circuit-proof as required by
AAMI DF-2:
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insulation test voltage 8 kV DC, type CF according to IEC 60601-2-4

Safety Discharge

capacitor discharge via internal load resistance:
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when the defibrillation shock is not triggered within 30 s of charging
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when the shock is triggered but the discharge circuit is interrupted, after approx. 0.2 s (e.g. when
the shock is triggered into open air)
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when the battery is full and the selected energy cannot be reached within 20 seconds
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in the presence of technical malfunctions
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when the battery is removed
•
when the device is switched off
•
when the electrode connector is removed

Test Features

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5 indicators (on battery) indicating the battery charge level
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defibrillator test by discharging the stored energy into the integrated 50-ohm load resistance (max.
twice within 15 minutes)
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3-digit display of the delivered energy
•
warning on LCD when discharge circuit is interrupted (e.g. pacer electrode not applied)
Revision F
2004768-001
Servicing Manual Dash Responder V1.0
Page 51 of 72