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6
Resting ECG
6.4
Changing the ECG display
Leads
Lead sequence
Standard
Cabrera
25 mm/s 10 mm/mV
LP 150Hz AC 50 Hz
Page 34
6.4
Changing the ECG display
The ECG display is optimised for one column of 3 channels and cannot be changed.
The amplitude and speed can be changed at any time with the direct keys. The
standard values for the display and thermal printer are 25 mm/s and 10 mm/mV.
6.4.1
Display
The following presentation can be selected in Menu > Settings > ECG > Leads
& cable:
The Standard and Cabrera lead sequences are as follows:
Lead group 1
I, II, III
aVL, I, -aVR
6.4.2
Myogram filter
The myogram filter suppresses disturbances caused by strong muscle tremor. In
Menu > Settings > ECG > Filters & formulas, the myogram filter is defined.
In the information field, LP 25 Hz, LP 40 Hz , LP 150 Hz or OFF is displayed.
The cut-off frequency is user-defined at LP 25 Hz, LP 40 Hz or LP 150 Hz or LP Off
(250 Hz)
(see chapter
6.4.3
Other filters
The following additional filters are available:
Baseline filter
The cut-off frequency for the baseline filter is based on IEC 60601-2-25 and cannot
be changed.
Notch filter
This filter prevents recording interference due to mains frequency oscillation. If the
filter is active, "AC 50 Hz" or "AC 60 Hz" is displayed.
• The filters are activated/deactivated or changed in the ECG settings
description).
Lead group 2
Lead group 3
aVL, aVF, -aVR
V1, V2, V3,
II, aVF, III
V1, V2, V3,
9.2.2, page 41).
CARDIOVIT AT-1 G2
Lead group 4
V4, V5, V6,
V4, V5, V6
(see following
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