BT-740 Operation manual
105
P/N : 740-ENG-OPM-EUR-D03
Bistos Co., Ltd.
2018.05
18.3 Functional specifications
18.3.1 ECG/TEMP/RESP
ECG
Standard compliance
IEC 60601-2-27:2011
Lead Type
3 lead
I, II, III
5 lead
I, II, III, aVR, aVL, aVF, V
Display sensitivity
Auto, 2.5mm/mV(x0.25), 5 mm/mV(x0.5),
10mm/mV(x1.0), 20mm/mV(x2.0) , 40mm/mV(x4.0)
Wave sweep speed
12.5 mm/s, 25 mm/s, 50 mm/s
Band width
Diagnostic mode
0.05 ~ 100 Hz
Monitor mode
0.5 ~ 40 Hz
Surgery mode
1 ~ 25 Hz
CMRR
>100 dB
Notch
50/60 Hz notch filter can be set to on or off
Differential input
impedance
> 5 M
Ω
Electrode polarization
voltage range
± 400 mV
Baseline recovery time
<5s after defibrillation (in monitor and surgery mode)
Calibration signal
1 mV (peak – peak), accuracy ± 3%
Lead-off detection
current
Measuring electrode: < 0.1 uA
Drive electrode: < 1uA
Pacing pulse
Pulse identification
For PACE pulses that meet the criteria below, PACE will be
marked on the screen.
Detection range: ± 2 mV ~ ± 700 mV
Pulse width: 0.2 ms ~ 2.0 ms
Average HR
Calculate from 15s data
Interval of HR refreshing
Calculate once every second
HR change response time Time from 80 bpm to 120 bpm:
≤
10 sec
Time from 80 bpm to 40 bpm:
≤
10 sec
Tall T-wave suppression
For T-wave with 100ms QRS wave, 350ms QT period, 180ms
duration and 1.2mV amplitude, the HR calculation will not be
affected
Without overshoot
rejection of pacemaker
pulses
Amplitudes (ap) from ±2 mV to ±700 mV and pulse widths
from 0,1 ms to 2,0 ms.
Tall T-wave rejection
capability
2mV
HR
Measuring range
Adult: 15 ~ 300 bpm
Pediatric: 15 ~ 350 bpm
Resolution
1 bpm
Heart rate measurement
error
± 1 bpm or ± 1%, whichever is greater
