T4 EEG Amplifier User Manual
19
1.
Nonin Xpod: the circular connector allows for the connection of a Nonin Xpod pulse oxime-
ter for measuring SpO
2
. This is plugged into the circular connector and the appropriate sen-
sor plugged into the Xpod device. Note that Lifelines does not supply sensors and these will
need to be sourced separately.
Note: the Nonin Xpod should not be used if more than 32 channels are on.
Refer to the manufacturer’s instructions supplied with the sensor when fitting it to the pa-
tient.
The appropriate recording setup will need to be used as described in section 4.1.
2.
Aux1: a 3.5mm mono jack connector allows for the connection of the Sleepsense body po-
sition sensor, type 1575, for hospital and clinic use. Not for home use.
3.
Patient Event: this 3.5mm jack connector allows for the connection of a standard Patient
Event Thumb Switch.
CAUTION: All these connections are type BF isolated. The conductive part of connectors
and transducers should not contact other conductive parts including earth. Always ensure
that the transducer fitted is suitable for a connection of this type.
4.
Micro-SD memory card slot.
5.
Host connection RJ45 socket.
WARNING: Cables must be routed carefully to avoid risk to the patient of entanglement and
strangulation.
3.4
Starting the system
To start the system proceed as follows:
•
Plug the PC into the mains supply.
•
Switch on the PC and wait for Windows to load.
•
Ensure T4 Amplifier is connected via the USB lead.
•
Launch Trackit application and continue as detailed in section 4.
•
These procedures also apply following a mains interruption.
Indicators
The following indicators are shown on the display on the top face of the T4:
0 8 : 1 7
L/
R
1 2 : 0 7
7 2 % B
ψ
W
1 0 1 3 M
Where the symbols indicate the fields to the right to have the following meanings:
Current time, hh:mm
Elapsed recording time, hh:mm (‘--:--‘ if not recording)
Battery capacity, % or ‘USB’ if external power applied
Micro-SD card storage capacity in Mbytes, xxxxM (remaining capacity if recording)
B
If the internal Bluetooth option is fitted, this indicates that it is on. Pressing the pushbutton 4
times within 4 seconds toggles the setting to off, indicated with a b. If the Bluetooth option is
not fitted, nothing is displayed.
W
If the internal WiFi option is fitted, this indicates that it is on. Pressing the pushbutton 5
times within 4 seconds toggles the setting to off, indicated with a w. If the WiFi option is not
fitted, nothing is displayed.
Ψ
Whenever a wireless connection is made the ψ symbol is displayed.
L/R Recording in progress
R
Recording in progress
L
Recording and Low memory card capacity remaining (< 8 minutes) during recording
(accompanied by auditory beep every 30 seconds)
*
When the battery is low, there is an auditory beep at 1Hz rate. There is no additional
information displayed.