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ESU protection
Defibrillation protection
Timing accuracy
Pace Pulse
Pulse marking
Pulse rejection
HR
Measurement range
Resolution
Measurement accuracy
Alarm limit setting resolution
Alarm limit accuracy
Tall T-wave rejection capability
Minute heart rate averaging
algorithm
Response time to heart rate
changes
Accuracy of heart rate meter
and its response to irregular
rhythm
Time to alarm for tachycardia
ST Segment Analysis
ESU cutting power: 300 W
ESU coagulating power: 100 W
Recovery time: <10 s
Heart rate change under ESU interference: <±10%
Recovery time of electrode polarization <10 s
Total error within 24 hours: ≤30 s
It can mark pacing pulses with an amplitude of ±2mV - ±700mV and a pulse
width of 0.1 ms-2 ms.
When tested in accordance with the IEC 60601-2-27: 201.12.1.101.13, the
heart rate meter rejects all pulses meeting the following conditions.
Amplitude: ±2mV to ±700mV;
Width: 0.1ms to 2ms
No overshoot
Minimum input slew rate: 5.5V/s RTI
Adult: 15 bpm-300 bpm
⚫
Pediatric: 15 bpm-350 bpm
⚫
Neonate: 15 bpm-350 bpm
⚫
1 bpm
±1% or ±1 bpm, whichever is greater
1 bpm
±1 bpm
For T wave with QRS wave of 100ms, QT interval of 350ms, duration of 180ms
and amplitude lower than 1.2mV, the heart rate calculation is not affected.
The lastest 8 RR intervals are all in a certain range of average heart beats.
Display refresh rate: 1 beat/s
Meets the requirements of IEC 60601-2-27: Clause 201.7.9.2.9.101 b) 5).
From 80 bpm to 120 bpm: less than 8 s
⚫
From 80 bpm to 40 bpm: less than 9 s
⚫
In compliance with the requirements in Clause 201.7.9.2.9.101 b) 4) of IEC
60601-2-27, the heart rate after 20 seconds of stabilization is displayed as
follows:
Ventricular bigeminy (waveform A1): 80 bpm
⚫
Slow alternating ventricular bigeminy (waveform A2): 60 bpm
⚫
Rapid alternating ventricular bigeminy (waveform A3): 120 bpm
⚫
Bidirectional systoles (waveform A4): 90 bpm
⚫
<11s (applicable to all clauses of IEC 60601-2-27)
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