9
-
4
Alarm Function
Alarm Sound Pressure
: Maximum 80dB, Minimum 46dB
ECG
Lead Type
: Wired 3-electrode, 4-electrode, 5-electrode
Frequency Characteristic
: 40Hz/15Hz
Input Impedance
: 2.5M
or more (Diagnosis mode)
Maximum Input Voltage
: 10mVp-p or above
Polarization Voltage
: ±500mV or above
Common Mode Rejection Ratio : 90 dB or above
HR Measurement Range
: Adult
0, 12 to 300bpm
Neonate
0, 30 to 300bpm
HR Measurement Accuracy
: ±1bpm (or ± 1%, whichever is larger)
HR Averaging Method
When the heartbeat of the last 7 seconds is 15 or more:
averaged value over 7 seconds of RR interval
When the heartbeat of the last 7 seconds is less than 15:
averaged value over 10 seconds of RR interval
Waveform Size
: 1/4, 1/2, 1, 2, 4
Defibrillation Proof
: Provided
Transient Property
: 3.2 sec, 0.3 sec, 0.1 sec
(time constant can be changed)
Tall T-wave Rejection
Capability
: 1.2mV T-wave can be removed.
Heart rate meter accuracy and response to irregular rhythm
80bpm Ventricular Bigeminy : 39bpm
60bpm Slow Alternating Ventricular Bigeminy : 29bpm
120bpm Rapid Alternating Ventricular Bigeminy : 114 to 120bpm
90bpm Bidirectional Systoles : 84 to 88bpm
Response time of heart rate meter to change in heart rate
HR change from 80bpm to 120bpm : Range 4.1 to 4.9 sec.
Average
4.4
sec.
HR change from 80bpm to 40bpm : Range 5.9 to 6.4 sec.
Average
6.1
sec.
Time to ALARM for tachycardia
Ventricular Tachycardia 1mVpp, 206bpm
: Average 15.8 sec.
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