| Lead | Standard Three leads | R,L,F, lead mode :Ⅰ,Ⅱ,Ⅲ |
| Standard Five leads | R,L,F,N,C,
Lead mode :Ⅰ,Ⅱ,Ⅲ,aVR,aVL,aVF,V； |
| Sensitivity | 2.5mm/mV,5mm/mV,10mm/mV,20mm/mV,40mm/mV,erro≤±3% |
| Scan speed | 12.5,25,50mm/s three level,erro ≤±10% |
| Adjustable screen aspect ratio | 0.05～3.2 |
| Lead off condition detected | U=2V I=0.04uA |
| Active noise suppression | In patients who have not applied current |
| Tall T-wave suppression | 1.4mV |
| Inner voice | <30μVP-P |
| Input impedance | ≥2.5MΩ |
| Input loop current | ≤0.1μA |
| Endure electrode polarizing voltage | ±300mV |
| ECG signal input range | ±5mV |
| Measurement mode | Diagnosis mode,monitoring mode,operation mode |
| Frequency property | diagnosis mode 0.05～130HZ
monitoring mode 0.5～40HZ
operating 1～20HZ |
| CMRR | Diagnosis mode ≥80dB
Monitoring mode ≥90dB
Operating mode ≥100dB |
| HR measurement range | Adult 30～250bpm
Neonate /pediatrics 30～300bpm |
| HR accuracy | ±2% |
| HR sensitivity | >200μV |
| Heart rate calculation | Take 4 to 12 R-wave cycle averaged |
| Refresh time heart rate | 1S |
| Heart rate response time | 80-120 BPM:range 4-7s
Average 4-7s
80-40 BPM: range 4-7s
Average 4-7s |
| Alarm range | 0～301bpm,upper and lower limit can be adjusted continuously |
| Alarm indicator | Audial and visual alarm |
| Heart rate too fast startup time of the alarm | Range :4-6s
Average :4-6S |
| Protection | Isolated immunity voltage 4000V,50/60HZImmunity of electronic surgical Anti-defibrillation |
| Protection and recovery for defibrillation effect | In the monitor and the surgical model ,ECG waveforms recovery to baseline in 5S. |
| Electrode polarization recovery time after the fibrillation | In the monitor and the surgical mode ,ECG waveforms recovered to baseline in 10S. |
| Surgical interference of electrical recovery time | In the monitor and the surgical mode ,ECG waveforms recovered to baseline in 10S. |
| No overshoot pacemaker pulse suppression: |
| Extent±2mV～±700mV,Pulse width 0.1ms～2ms | QRS wave | Display |
| a)Single pacing pulse | 60 | 60±2bpm |
| 30 | 30±2bpm |
| 0 | -- |
| b)With normal QRS-T pacing the pacing pulse | 60 | 60±2bpm |
| 30 | 30±2bpm |
| 0 | -- |
| c)QRS has an invalid pacing mode pacing pulse. In all cases, overshoot (a0) pacing rate should be less than 5% overshoot and settling time must be less than 5μs. Rise and fall time of the pulse width should be 10% but not more than 100μs, and the pacing pulse starting time should be the starting point in the QRS complex prior to or shorter than 40ms at 40ms. | 60 | 60±2bpm |
| 30 | 30±2bpm |
| 0 | -- |
| Beware of the room pacing pulses have the same ventricular pacing pulse amplitude and duration, and ventricular pacing pulses than 150ms to 250ms in advance | 60 | 60±2bpm |
| 30 | 30±2bpm |
| 0 | -- |
| Typical minimum input slew rate | 50V/s RTI |
