Zoncare U30 - Page 54

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AC Filter
（Hz）
OFF、50、60
50
Select whether to turn on the AC filter to
filter out AC power interference. AC Filter
should always be turned on, unless it is
necessary to turn it off.
EMG（Hz）
OFF 、 25 、
35、45、75、
100、150、
250、350
35
Set the frequency of EMG. Turning on the
EMG filter can filter out EMG interference,
but it may reduce the bandwidth and cause
the ECG waveform shape to change. The
EMG filter is low-pass filtering. Signals with
a frequency higher than the set value will be
filtered out. When set to 35 Hz, the system
only displays signals below 35 Hz and
below 35 Hz, and signals beyond 35 Hz will
be filtered out.
CAUTION
 The settings of the baseline drift filter and the EMG filter affect the frequency
response range of the electrocardiograph. If the baseline drift filter setting
value is too high and the EMG filter setting value is too low, it will affect the
accuracy of the ECG machine for waveform restoration. For example, when
the baseline drift filter frequency is set to 0.6 Hz and the EMG filter frequency
is set to 25 Hz, the system frequency response range is 0.6 Hz to 25 Hz.