4.3.2 limb lead measurement
Please refer to the section 4.1 "Chest lead measurement" to connect the lead
wires; enter "
" option setup menu to select "limb lead" for signal input;
return to default menu screen, move the cursor to the " " icon, press
the ""ok key to enter into external electrodes measurement (4 lead wires)
preparing screen. After 10 seconds, it will enter into the limd lead measuring
screen, as shown in Figure 4.10.
on-screen display:
1. "00: 00: 01": Measuring time
2. "X1": "X1": ECG waveform amplitude
scale; "X2": twice size of the nominal scale;
"X4": four times size of the nominal scale.
3. "♥": Heart beat indicator. It flashes
while heart beats.
4. "Hr=65": Current HR value.
It is displayed during measurement only
when external lead wires are used, if the
ECG signal is poor, this value could become "---".
5.
: Enhanced filter mode indication.
It shows up only when the bandwidth is set to enhanced mode.
6. "
": Status of battery capacity
7. "
": ECG waveform
8. " ": Mark corresponding to 1mV amplitude
9. "
": Status bar of measurement progress.
operation:
When in the quick measurement by built-in electrodes:
• Press "" key, the measuring display screen will be made a quarter
turn counterclockwise;
• Press the "" ok key or ""return key to stop measuring and return
to the default menu screen directly, the measuring data won't be saved.
when in the external electrodes lead wire measurement:
• The device will stop measuring automatically if the measuring time is over;
• Press the "" ok key or "" return key to stop measuring and return
to the default menu screen directly, the measuring data would be saved.
Note:
• If the storage is full, the device will stop to measure and it prompts
"Fail to save this record because of full data memory", at this moment,
you should delete some records to make sure enough storage space,
then measuring again.
• If the battery is low, the battery icon "
to measure and it prompts "low battery voltage, measuring is interrupted,
ENGLISH
" flashes red, the device stop
50
Figure 4.10
Measuring (limb lead)