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24 Specifications
ECG/Arrhythmia/ST Supplemental Information as required by AAMI EC11/13, IEC 60601-2-27
Respiration Excitation Waveform
Noise Suppression
Time to Alarm for Tachycardia Vent Tachycardia
Tall T-Wave Rejection Capability
Heart Rate Averaging Method
Response Time of Heart Rate Meter to Change in Heart Rate
Heart Rate Meter Accuracy and Response to Irregular Rhythm
Accuracy of Input Signal Reproduction
Pacemaker Pulse Rejection Performance
Pacemaker Pulse Rejection of fast ECG signals
Minimum input slew rate
Respiration
Respiration Performance Specifications
Respiration Rate
Bandwidth
Noise
300
1 mV
,206 bpm
pp
Vent Tachycardia
2 mV
,195 bpm
pp
Range
Accuracy
Resolution
Sinusoidal signal, 260 μA, 40.5 kHz
RL drive gain 44 dB max., max. voltage 1.8 Vrms
Gain 0.5, Range 6.5 to 8.4 seconds, Average 7.2 seconds
Gain 1.0 Range 6.1 to 6.9 seconds, Average 6.5 seconds
Gain 2.0, Range 5.9 to 6.7 seconds, Average 6.3 seconds
Gain 0.5, Range 5.4 to 6.2 seconds, Average 5.8 seconds
Gain 1.0, Range 5.7 to 6.5 seconds, Average 6.1 seconds
Gain 2.0, Range 5.3 to 6.1 seconds, Average 5.7 seconds
Exceeds ANSI/AAMI EC 13 Sect. 3.1.2.1(c) minimum
recommended 1.2 mV T-Wave amplitude
Three different methods are used:
Normally, heart rate is computed by averaging the 12 most
recent R-R intervals.
For runs of PVCs, up to 8 R-R intervals are averaged to compute
the HR.
If each of 3 consecutive R-R intervals is greater than 1200 ms
(that is, rate less than 50 bpm), then the 4 most recent R-R
intervals are averaged to compute the HR.
HR change from 80 to 120 bpm:
Range: [6.4 to 7.2 seconds] Average: 6.8 seconds
HR change from 80 to 40 bpm:
Range: [5.6 to 6.4 sec] Average: 6.0 seconds
Ventricular bigeminy: 80 bpm
Slow alternating ventricular bigeminy: 60 bpm
Rapid alternating ventricular bigeminy: 120 bpm
Bidirectional systoles: 90 bpm
Methods A and D were used to establish overall system error
and frequency response.
Rejection of pacemaker pulses with amplitudes from ±2 mV to
±700 mV and widths from 0.1 ms to 2.0 ms (Method A)
2.2 V/s RTI (Paced Mode)
2.2 V/s RTI
Adult/pedi: 0 to 120 rpm
Neo: 0 to 170 rpm
at 0 to 120 rpm ±1 rpm
at 120 to 170 rpm ±2 rpm
1 rpm
0.3 to 2.5 Hz (-6 dB)
Less than 25 mΩ (rms) referred to the input

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