g.tec medical engineering GmbH
g.HIamp, USB Biosignal Amplifier: Instruction for use
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V2.16.01
Page 21
10 Safe operation of g.HIamp
Setting up g.HIamp
Avoiding electrostatic discharge impulses to the safety input sockets:
Electrostatic discharge (ESD) events can harm electronic components inside your device. Under
certain conditions, ESD may build up on your body or an object, such as a peripheral, and then
discharge into another object, such as the device. To prevent ESD damage, you should discharge
static electricity from your body before you interact with any of your device.
You can protect against ESD and discharge static electricity from your body by touching a metal
grounded object. When connecting the electrodes to the device you should always ground yourself to
remove any static charge your body may have accumulated.
To start g.HIamp for recording perform the following steps:
Step 1:
Connect the medical power supply unit GTM21097-3005 with the POWER SUPPLY connector
to the POWER SUPPLY socket of g.HIamp.
Step 2:
Connect the USB cable connector USB to the USB socket of g.HIamp and the PC USB
connector of the cable to a USB connector of the PC.
Step 3:
Connect the medical power supply unit to power line with the power line cord.
Step 4:
For EEG recordings place the electrodes with conductive gel to the subject’s head according
to the international 10-20 electrode system
1
. The electrode impedance should be below 5 kOhm.
Step 5:
Connect the electrodes to the sockets 1
– 64 and ground socket of the 64 channel electrode
connector box and connect the box via the connection cable to the corresponding input socket of block
A (channels 001-064) on g.HIamp.
Step 6:
Switch on g.HIamp with the switch on the rear side (switch position ON).
The green LED of the medical power supply unit must be on. Please contact the manufacturer if the
medical power supply unit is not working correctly.
The correct operation of g.HIamp is indicated by a green LED on the front side. If the LED is not on
please control the power supply connection and the fuse of g.HIamp.
1
Webster, J.G.,(ed.): Medical Instrumentation: Application and Design, p.194-216. Houghton Mifflin: Boston 1992.
