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ENGLISH
HR:
High
: High limit for heart rate alarm.
Low:
lower limit for heart rate alarm.
S-T:
the switch of S-T over-limits alarm, the default is unselect, that’s, turn off the over-limits alarm.
If you want to turn on the over-limits alarm, the password is required.
High:
High limit for S-T alarm.
Low:
Low limit for S-T alarm.
Manual S-T segment measurement operation:
The operator can use the Navigation Knob to do the S-T segment measurement manually, the value is displayed with “S-T
+0.xxx mV”. There are 2 cross cursors on screen. The red cross is the activated one. The arrows (
and ) on the red
cross indicate the directions that the cross cursor moves when rotating the Navigation Knob. Press the Navigation Knob
can change directions of the cross cursor or change the activating status of the cross cursor.
The measured S-T value will be accurate only in “Diagnosis” mode, while the S-T value is less meaningful in other modes.
In “Diagnosis” mode, when ARR event is detected, the S-T value is only for reference.
The S-T segment measuring algorithm has been tested for accuracy of the ST segment data. The significance of the
ST segment changes need to be determined by a clinician.
7.8 Freezing Waveform
When there are waveforms displayed on screen, press the Freeze key to enter into waveform freezing screen. During
freezing, the frozen symbol “
” and frozen time will be displayed on the upper right corner of the waveform area.
At the moment, the operator can do S-T measurement, and get the real-time value of S-T segment
There are 2 Freeze types: “ECG waves”, “EEG” (if optioned) and “All waves”, which can be set in System Settings window.
7.9 Factors Affecting ECG signal
Interference from Electro-surgical Unit;
Doesn’t set the filter mode properly;
Poor grounding;
Electrodes are not placed properly;
Use expired electrode or use disposable electrode repeatedly;
The skin placed electrode is unclean or poor contract caused by scurf and hair;