Page 1.17
Chapter 1
Operating Elements
SCHILLER AT-2plus 6-Channel ECG Unit
SERVICE HANDBOOK Issue d May 2002
Settings (cont.)
Myogram Filter
The
Myogram filter
suppresses disturbances caused by strong muscle tremor. The set value will
be the new upper limit of the frequency range as soon as the
FILTER
key is pressed on or
programmed as default when the unit is switched on. When the Myogram filter is on `Filter` is
displayed on the bottom line of the LCD.
Myogram Filter
Entry Key
Sequence
Setting
Confirm
ALT
8
2
Myogram Filter 25 Hz
Press
STOP
key
3
Myogram Filter 35 Hz
1
Myogram Filter active
when the unit is first
switched on (marked
on printout with +)
8
Myogram Filter off
when the unit is first
switched on (marked
on printout with -)
Confirm the selection by pressing the
STOP
key
STOP
The myogram filter is switched on and off manually with the
FILTER KEY
Note:
An ECG recorded in auto mode is stored unfiltered. It is therefore possible to print the
stored ECG either with or without passing the myogram filter. Filter ON is indicated
in the bottom information line of the LCD. When the
FILTER
key is pressed again, the
filter is switched off and the `Filter` indication on the bottom information line of the
LCD is removed. The cutoff frequency of the myogram filter is set to either 25 or 35
Hz.
