3-7
Precision ±1 bpm or ±1%, whichever is greater.
Trigger threshold level 200 μV (lead II)
Trigger indication There will be an audible beep on every beat captured.
Heart Rate Averaging The average Heart Rate is computed in line with the ANSI/AAMI
EC13 Section 4.1.2.1 d) as follows:
When the last 3 R-to-R intervals > 1200 ms, compute the average
of the last 4 R-to-R intervals; otherwise, compute the average of
the last 12 R-to-R intervals minus the longest and shortest
intervals.
The displayed Heart Rate is updated once per second.
Heart Rate Meter Accuracy
and Response to Irregular
Rhythm
When tested in accordance with the ANSI/AAMI EC13 Section
4.1.2.1 e), the indicated heart rate after a 20 second stabilization
period is:
Figure 3a (Ventricular Bigeminy) -80±1 bpm
Figure 3b (Slow Alternating Ventricular Bigeminy) -60±1 bpm
Figure 3c (Rapid Alternating Ventricular Bigeminy) -120±1bpm
Figure 3d (Bi-directional Systoles) -90±2 bpm
Response time to heart rate
changes
Meets the requirement of ANSI/AAMI EC13 Section 4.1.2.1 f).
Less than 11 sec for a step increase from 80 to 120 BPM
Less than 11 sec for a step decrease from 80 to 40 BPM
Response time of
tachycardia alarm
When tested in accordance with ANSI/AAMI EC13 Section
4.1.2.1 g, the response time is as follows:
Figure 4ah – range: 15.7 to 19.2s, average: 17.4s
4a – range: 5.7 to 8.5s, average: 7.5s
4ad – range: 3.6 to 5.1s, average: 4.2s
Figure 4bh – range: 11.5 to 14.7s, average: 12.9s
4b – range: 4 to 14s, average: 7.2s
4bd – range: 6.6 to 14.5s, average: 10.5s
Tall T-Wave Rejection When tested in accordance with the ANSI/AAMI EC13 Section
4.1.2.1 c), the heart rate meter will reject all T-waves with
amplitudes less than 1.2 mV, 100 ms QRS, a T wave duration of
180ms and a Q-T interval of 350 ms.
To Next Page
Loading...
Need help?
General
