SE-1200 Series Electrocardiograph User Manual System Setup
- 86 -
Figure 10-2 Filter Setup Window
Item
Description
AC Filter
Choose from:
On
or
Off
NOTE:
AC frequency can be set to
50Hz
or
60Hz
on the
Advanced
Setup
screen according to local mains supply
specifications.
DFT Filter
DFT Filter greatly reduces the baseline fluctuations without affecting the
ECG signals. The purpose of this filter is to keep the ECG signals on the
baseline of the printout.
Choose from:
0.05Hz
,
0.15Hz
,
0.25Hz
,
0.32Hz
,
0.5Hz
or
0.67Hz
The set value is the low limit of the frequency range.
EMG Filter
EMG Filter suppresses disturbance caused by strong muscle tremor.
The cutoff frequency can be set to
25Hz
,
35Hz
or
45Hz
.
Lowpass Filter
Lowpass Filter
restricts the bandwidth of input signals.
The cutoff frequency can be set to
75Hz
,
100Hz
or
150Hz
.
All the input signals whose frequency is higher than the set cutoff
frequency will be attenuated.
NOTE:
Only when
EMG Filter
is set to
Off
, can the setting of
Lowpass Filter
be effective.
NOTE
: To pass the distortion test, the electrocardiograph has to be configured with the
highest bandwidth in filter settings. Otherwise, ECG signal may be distorted.
理邦保密文件
EDAN CONFIDENTIAL