GE Marquette Responder 3000

Technical Specifications
227 490 02-C Marquette Responder® 3000 79
Pulse Output
isolated, no conductive connection with enclosure,
open-circuit and short-circuit-proof as required by
AAMI DF-2:
•
insulation test voltage 8 kV DC, type CF
according to IEC 60601-2-4
Safety Discharge
capacitor discharge via internal load resistance:
•
when the defibrillation shock is not triggered
within 30 s of charging
•
when the defibrillation shock is triggered, but
the discharge circuit is interrupted, after 0.2 s
•
when the selected energy is not reached, after
32 s
•
in the presence of technical malfunctions
•
when the energy selector is set to or "Off"
after charging was initiated
•
when a shock is delivered into open air,
•
when the battery voltage is insufficient,
Test Features
•
indicator for battery charging
•
defibrillator test by discharging the stored
energy into the integrated 50-ohm load resis-
tance (max. twice within 15 minutes)
•
3-digit display of the delivered energy
•
warning on LCD when discharge circuit is
interrupted (e.g. defibrillation electrode not
applied)
•
automatic power-on self-test with error
message
Synchronization
with ECG signal of either polarity:
•
minimum ECG amplitude for reliable triggering
approx. 0.50 mV and QRS width of 80 ms
•
indicated by yellow LED
•
SYNC marker on display
ECG Signal Input Via Defibrillation
Electrodes
automatic switching to defibrillation electrodes
when there is no patient cable or lead is open;
differential input, isolated, IEC class CF, with
overvoltage protection:
•
input voltage range ± 10 mV
•
input impedance > 1 MOhms
•
differential DC voltage tolerance ± 1 V
•
frequency response 1.2 Hz to 35 Hz (-3 dB)
•
common-mode rejection > 80 dB
•
patient leakage current: in normal condition <
10 µA, in single-fault condition < 100 µA
•
detection of pacing pulses
−
pulse duration d
p
> approx. 0.1 ms < 2.0 ms
−
pace marker independent of polarity
−
pulse amplitude a
p
± 10 to ± 700 mV
−
reverse current pulse a
0
± 1 mV
−
time constant t
0
= 25 to 100 ms