Patient monitor User’s manual
8
A.6 Measurement Specifications
A.6.1 ECG
Standard
EN 60601-2-27 / IEC 60601-2-27, ANSI/AAMI EC 13:
2002
Lead type
3 lead: I, II, III
5 lead: I, II, III, aVR, aVL, aVF, Vx
12 lead: I, II, III, aVR, aVL, aVF, V1-V6
Lead standard AHA, IEC
Gain
2.5 mm/mV（×0.25）, 5 mm/mV（×0.5）, 10 mm/mV（×1）,
20 mm/mV（×2）, 40 mm/mV（×4）, Auto
CMRR
Diagnostic mode ≥ 89 dB
Monitor mode ≥ 105 dB
Surgery mode ≥ 105 dB
Bandwidth (-3d B)
Diagnostic mode: 0.05 Hz to 150 Hz
Monitor mode: 0.5 Hz to 40 Hz
Surgery mode: 1 Hz to 25Hz
Input impedance ≥ 5.0 MΩ
ECG signal range ± 10.0 mV
Electrode offset
potential
± 500 mV
Patient leakage current < 10 uA
System noise ≤ 30 μVpp (RTI)
AC filter (50/60 Hz
line frequency)
Monitor, Surgery mode: AC filter turns on.
Diagnostic, User mode: AC filter turns on or off.
Standardizing signal 1 mV ± 5%
Baseline recovery Monitor mode: ≤ 3 s; Surgery mode: ≤ 1 s
Indication of electrode
separation
Every electrode (exclusive of RL)
Sweep speed 12.5 mm/s, 25 mm/s, 50 mm/s
Protection
Breakdown Voltage 4000VAC 50Hz/60Hz. 60S
Anti-interference of electrocautery uint
Anti-protectior of defibrillation
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