METRON QA-45, Руководство пользователя и обслуживания, Страница: 8 / 74

2. ECG Wave
ECG General
Lead configuration 12-lead simulation. RL, RA, LA, LL, V1-6
Output impedance Limb leads 1000 ohms to RL
V Leads 1000 ohms to RL
All other signals are in relative proportion to Lead amplitude as follows:
The amplitudes are shown for a Lead I amplitude by 1 mV:
Lead I 1.0 mV (LA - RA)
Lead II 1.5 mV (LL - RA)
Lead III 0.5 mV (LL - LA)
V Lead 1.5 mV (V - 1/3 (LL+LA+RA))
High Level Output (ECG Jack)
1/4" standard phone-jack with an amplitude of 1V/mV of low level Lead
II signal
Defibrillator Contact Plates
Same amplitude as Lead I low level ECG.
1 mV between contact surfaces.
Playback
200 to 1 time-base expansion of defibrillator pulse by playback to
ECG Leads
Manual ECG Performance Test
DC Pulse 4 seconds 1.0 mV
Square wave 2 Hz 1.0 mV p-p biphasic
Triangular wave 2 Hz 1.0 mV
Sine 0.1, 0.2, 0.5, 10, 40, 50, 60, and 100 Hz
Amplitude 0.5, 1.0, 1.5, 2.0 mV (Lead II)
Accuracy
±
5 % (Lead II 1.0 mV)
ECG Performance Test
Gain/Damping 2 Hz square wave
Frequency Response
Low Frequency 4 second DC pulse
Band Pass 10 Hz sine
Monitor -3dB point: 40 Hz sine
Power Line Notch
Filter
50 Hz sine
Linearity 2 Hz triangle wave
Normal Sinus
Rates 30, 60, 80, 120, 180, 240 and 300 BPM.
Accuracy ±
1% of selection
Amplitudes 0.5, 1.0, 1.5 and 2.0 mV (Lead II)
Accuracy ±
5 % (Lead II 1.0 mV)
Automatic ECG Rate Test
Arrhythmia Selections
vfib Ventricular Fibrillation
afib Atrial Fibrillation
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