Service menu for EEG Module for
electroencephalography and evoked potentials (EP)
measurements.
Check Electr.: Headbox measures impedance of
electrodes. Works the same way as from EEG menu
or the headbox/module button.
Start AEP: AEP measurement is started with current
AEP settings.
Module: Service data is changed to the module view
(some of the data in this view is though from
headbox).
Headbox: Service data is changed to headbox view.
Service data in module view
Measurement shows whether the EEG measurement
is ON or OFF. Measurement should start by itself
when the leads have been on for about 15 seconds.
Montage shows the active montage in monitor.
HB Montage shows the montage attached to
headbox. 0 means no montage, 1 basic, 2 general,
3 AEP, 4 Mont4, etc. up to 8, which means Mont8.
Montage Type shows whether the montage is bipolar or referenced.
EP Start/Stop is highlighted when the EP Start/Stop button is pressed in headbox or module.
Imp. Check is highlighted when the Imp. Check button is pressed in headbox or module.
Imp. Meas. shows 1 if the impedance measurement is on in the module.
Headbox Off shows 1 if the headbox cable is not connected to the module.
EP Meas. shows 1 if the evoked potential measurement is active in the module.
Sending EP shows 1 if the module has acquired 100/200 new epochs and is sending them to the monitor.
Par. Error shows 1 if the evoked potential parameters active in the module are conflicting with each other.
Reserved 1 is reserved for future use.
Reserved 2 is reserved for future use.
HB Mod Timeouts is a cumulative number that indicates how many times the headbox has not responded to
the module’s inquiry.
HB Mod Bad Checksum is a cumulative number that indicates how many times there has been an error in the
message from the headbox to the module.
Mod HB Bad Checksum is 1 if there has been errors in the messages from the module to the headbox.
Mod Mon Timeouts is a cumulative number that indicates how many times the module has not responded to
the monitor’s inquiry.
Mod Mon Bad Checksum is a cumulative number that indicates how many times there has been an error in the
message from the module to the monitor.
Mon Mod Bad Checksum is a cumulative number that indicates how many times there has been an error in the
message from the monitor to the module.
RAM indicates the state of the RAM memory.
ROM indicates whether the checksum at the EPROM is in accordance with the one the software has calculated.
EEPROM indicates if the values stored in the permanent memory are valid.
The states in memory checks are OK, Fail or ? (module not in place or a communication error).
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