Defibrillator Specifications
9650-0904-01 Rev. N ZOLL R Series Operator’s Guide A–5
Lead selection I, II, III, aVR, aVL, aVF, V, PADS, PADDLES, INTL PADDLES
P1, P2, P3 with OneStep Pacing electrodes
ECG size relative
scale factor
x0.5, x1, x1.5, x2 or x3
Current value shown on display.
Heart rate range 30 to 300 beats per minute
Heart rate
accuracy
±5%
Heart rate alarm Screen icon indicates activated/deactivated status. User selectable.
Tachycardia: 60 to 280 beats per minute
Bradycardia: 20 to 100 beats per minute
Tall T-wave
Rejection
<
0.8 mV
Heart Rate
Averaging
The R Series averages the interval between the last 6 detected beats. On
startup, the R Series averages the rate between detected beats once two
beats are detected, until a full 6 beats have been received. The rate is
updated every beat. After this condition is met, the meter is updated every
beat with an average of the last 6 beats.
If a period of time greater than 5 seconds elapses without a beat detected,
the heart rate meter reports a rate of 0 bpm, which is repeated every 5
seconds.
Accuracy and
Response Time to
Irregular Rhythm
Averaging over 5 R -R intervals, per AAMI EC 13:2002:
• Ventricular bigeminy (Figure 3a) - 80.5 bpm
• Slow alternating ventricular bigeminy (Figure 3b) - 60.5 bpm
• Slow alternating ventricular bigeminy (Figure 3c) - 120.5 bpm
• Bidirectional systoles (Figure 3d) - 93.3 bpm
Response Time to
Change in Heart
Rate
• 3 seconds maximum for a step increase from 80 bpm to 120 bpm
• 6 seconds maximum for a step decrease from 80 bpm to 40 bpm
Time to Alarm for
Tachycardia
from NSR 80 to VT 195 at 1 mV: 4 seconds
from NSR 80 to VT 195 at 2 mV: 4 seconds
from NSR 80 to VT 195 at 4 mV: 4 seconds
from NSR 80 to VT 206 at 0.5 mV: 4 seconds
from NSR 80 to VT 206 at 1 mV: 4 seconds
from NSR 80 to VT 206 at 2 mV: 4 seconds
Leads Off Sensing A dc current of 0.04 uA per lead wire is supplied to the patient.
Active Noise
Suppression
The sum of all leadwire currents is returned via the active noise suppression
leadwire:
• 0.08 uA DC in 3 lead mode
• 0.16 uA DC in 5 lead mode
Pacemaker option
Type VVI demand; asynchronous (fixed rate) when used without ECG leads or in
asynchronous (Async) pacing mode
Pulse type Rectilinear, constant current
Pulse duration 40 ms ±2 ms
Pulse amplitude
(output)
Variable 0 mA to 140 mA ±5% or 5 mA, whichever is greater
Increments/decrements by a value of 2 mA
Pacing rate 30 to 180 pulses per minute (ppm) ±1.5%
Increments/decrements by a value of 2 ppm
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