User's Manual

EEG
24-27
Starting and Stopping Processing
The EEG module can operate in either the processing on or off mode. To set up
the module, you need to have processing turned off. Processing off is the default
mode when you first insert the module into the module housing.
The Initial Setup menu allows you to access other menus needed for defining the
various configurations you may want to store.
Only analog EEG is displayed when the power has first been turned on, or the
processing has been stopped. Processing of the data and the display of DSA or
trends will start when the START PROC key is touched.
START PROC
Touch the RETAIN ARCHIVED EEG DATA key to begin processing without
erasing EEG data stored in the module. This is useful if processing is suspended,
then resumes on the same patient. The key will change to STOP PROC after it is
pressed.
Touch the ERASE ARCHIVED EEG DATA key to erase all EEG data presently
stored in the module. Processing begins and START PROC changes to STOP
PROC.
STOP PROC
Touch the YES key to stop processing and return to the main menu. The STOP
PROC key changes back to START PROC. Touch the NO key to return to the
main menu without interrupting processing.
Continuous Impedance
Touch the CONTINUOUS IMPEDANCE key to put the module in continuous
mode. In continuous mode, the impedance of each electrode is measured and
displayed every 2-seconds. Use this mode when the electrodes are first placed on
the scalp or when the impedance of an electrode is out of range (absolute above
5 K ohms and differential above 2 K ohms), and must be re-applied.
Touch the CONTINUOUS IMPEDANCE key again to un-highlight it, and turn off
continuous checking. This places the impedance checking in auto mode, which
updates every 5-minutes when processing is on.
!
• You can only access the Initial Setup menu when processing is
off.
!
• EEG/EMG data is corrupted when continuous impedance is
selected.
To start processing:
1 Touch EEG.
2 Touch START PROC.
3a Touch ERASE ARCHIVED
EEG DATA for each new
patient.
3b Touch RETAIN ARCHIVED
EEG DATA if the data in the
module is to be saved.
To stop processing:
1 Touch EEG.
2 Touch STOP PROC.
3 Touch YES.
To put the module in continuous
impedance mode from the
Montage screen:
1 Touch EEG.
2 Touch SETUP.
3 Touch INITIAL SETUP.
4 Touch SYSTEM PARAMS.
5 Touch MONTAGE.
6 Touch CONTINUOUS
IMPEDANCE.
To put the module in continuous
impedance mode:
1 Touch EEG.
2 Touch SETUP.
3 Touch ANALOG.
4 Touch CONTINUOUS
IMPEDANCE.