B40/B20 Patient Monitor2-18Parameters specificationsECG specificationsLeads available 3-lead configuration: I, II, III5-lead configuration: I, II, III, aVR, aVL, aVF and VAQRS detection range 0.5 to 5mVQRS detection width (Q toS)40 to 120 msDefibrillation protection 5000 V, 360 JRecovery time <5 sInput impedance Common mode > 10 MΩ @ 50/60 HzDifferential > 2.5 MΩ from 0.67 to 40 HzCommon mode rejection 90 dB minimum at 50 HzTall T wave rejection >1.4 mVECG leads off detection Active patient electrode: <30 nAReference electrode: <300 nAFilter modes50/60 HzMonitoring filter 0.5 to 40 HzST filter 0.05 to 40 HzDagnostic filter 0.05 to 150 HzHeart rateMeasurement range 30 to 300 bpmMeasurement accuracy ±5 % or ±5 bpm, whichever is greaterresolution 1 bpmHeart rate response time (IEC 60601-2-27 201.7.9.2.9.101 b) 5))Step increase from 80 to120 bpmaverage 6.9 s (6.5 to 7.5 s)Step decrease from 80 to40 bpmaverage 8.2 s, (7.6 to 10.0 s)The heart rate calculation operates with irregular rhythms of IEC 60601-2-27201.7.9.2.9.101 b) 4), the heart rate after a 20 second stabilization period is:Figure 3a 80 bpmFigure 3b 59 bpmFigure 3c 122 bpmFigure 3d 117 bpmHeart rate averaging computation (IEC 60601-2-27 201.7.9.2.9.101 b) 3)): Averageof 10 second median valuesThe average time and time range ( ) to alarm (VFib or VTachy) for tachycardiawaveform are as follows (IEC 60601-2-27 201.7.9.2.9.101 b) 6))
