Page 1.16
SCHILLER AT-2plus 6-Channel ECG Unit
SERVICE HANDBOOK Issue 1 June 1998
Chapter 1
Operating Elements
Settings (cont.)
Filters
There are three different filters which can be set individually as follows:
Baseline filter
Mains filter
Myogram filter
Baseline Filter
The digital Baseline filter suppresses excessive baseline drifts. The setting options are as follows:
Confirm the selection by pressing
STOP
Note: The set value is the lower limit of the frequency range and is normally set to 0.05 Hz.
The settings 0.15 and 0.30 Hz should only be used when absolutely necessary, as the
possibility exists that they could affect the original ECG signal, especially the ST
segments.
Mains Filter
The Mains filter is an adaptive digital interference filter designed to suppress AC interference
without attenuating or distorting the ECG.
Set the mains filter in accordance with the frequency of your local mains supply as follows:
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