GE S5 Service Manual

Service Menu
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                                          Document no. M1031519-01
4.13 EEG & EP
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:...

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Document no. M1031519-01                                                                           
Service data in Headbox view
EP Start/Stop is highlighted when the EP Start/Stop 
button is pressed in the headbox or module.
Imp. Check is highlighted when the Imp. Check button 
is pressed in the headbox or module.
Active shows 1 if the channel is active.
Lead off+ shows the lead off status of all plus 
electrodes. 0 means that the...

Service Menu
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                                          Document no. M1031519-01
4.13.1 EEG & EP Setup
The items in the setup menu are a collection of items in 
normal EEG and EP menus. There are no special service 
settings in this menu. 
Imp. Cycle: Impedance measurement repetition time.
Select Montage: Selection of headbox’s electrode 
configuration.
EEG Channels: Number of active channels in EEG 
measurement.
Montage Type: Selection of bipolar (Bip)/referenced 
(Ref) montage.
Cycle: EP measurement...

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Document no. M1031519-01                                                                           
4.14 BIS
Service menu for BIS Module, E-BIS or M-BIS, for Bispectral index measurements.
Module service page
Check Sensor activates the sensor impedance check.
Module
Measurement indicates if BIS Engine is on: ON/OFF.
Imp. Check Key  indicates that the key in the module 
front panel works properly.
Bis Menu Key indicates that the key...

Service Menu
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                                          Document no. M1031519-01
General_Status1     Module general status
Table 9 Module general status
BIS_Status1    BIS Engine status
Table 10 BIS Engine status
Table 11 BIS Engine and DSC error messagesbit 0-5 Not used
bit 6 State error
bit 7 Communication failure
bit 8 Power failure
bit 9 Clock failure
bit 10 EEPROM checksum failure
bit 11 EEPROM writing failure
bit 12 ROM failure
bit 13 RAM failure
bit 14 Test mode
bit 15 Init mode
bit 0 Check...

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Document no. M1031519-01                                                                           
Message Errors of type 2
Illegal message ID Errors for layer 3 packets
Illegal command parameter
Illegal length for layer 2 data
Disabled interrupt received - 
UART transmitter empty interruptUART related errors
Disabled interrupt received -
UART modem interrupt
No status nibble received DSC related errors
DSC not connected
DSC...

Service Menu
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                                          Document no. M1031519-01
4.14.1 Sensor 
Sensor type: indicates the type of the sensor connected.      
Lot code: indicates the manufacturing lot code of the 
sensor. The lot code contains the manufacturing date 
and shift.
Serial no: indicates the serial number of the sensor.
Shelf life: indicates max storage duration.
Usage count: indicates how many times the sensor has 
been attached/detached. Not in use.
Mains Freq.:  indicates the set mains...

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Document no. M1031519-01                                                                           
Table 12 DSC status
Table 13 Sensor status
Table 14 BE power up statusbit 0 Noise test
bit 1 BIS key pressed
bit 2 Blocked droop test
bit 3 Unblocked gain test
bit 4 Impedance wait time out test
bit 5 Noise timeout test
bit 6 Blocked timeout test
bit 7 Unblocked timeout test
bit 8 DSC not connected test
bit 9 Not used test
bit 10 Not...

Service Menu
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                                          Document no. M1031519-01
4.14.2 BIS Setup
Automatic Check:  A selection to define whether the 
automatic sensor check is used ON/OFF.
Test DSC indicates the status of the DSC self test; 
PASS/FAIL.
Filters: A selection to define if filters are used 
ON; disturbances are filtered from the raw EEG signal 
OFF; raw EEG signal is shown. 

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Document no. M1031519-01                                                                           
4.15 Entropy
Check Sensor Module measures the impedance of 
sensor electrodes. Works the same way as from Entropy 
menu or module key.
Module Service data is changed to the module view.
Measurement shows whether the Entropy measurement 
is ON or OFF. Measurement should start by itself when the 
sensor is attached to the patient....