Eclipse Additional Information Page 164
7.5.5 Impedance Check
1. After having attached the electrodes to the patient, it is crucial to check if the skin impedance is accepta-
ble. For best results, impedance at each electrode site should be as low as possible; preferably 3 kΩ or
less and best if they are balanced.
2. To check the electrode impedances, press down the IMP button on the Preamplifier. When activated the
IMP button starts to flash.
3. Turn the dial fully clockwise and then turn it slowly counter clockwise. Each LED will turn from red to
green when the impedance is found for that specific electrode. The impedance value can be read on the
Preamplifier.
4. Low and balanced electrode impedances are typically more efficient in reducing interference.
5. If the impedance of one or more electrodes is too high, consider rechecking the bond between the skin
and electrode. If this does not help you may need to remove the electrode and repeat the skin preparation
procedure using a new electrode.
6. Return to recording mode by pressing down the IMP button again. All Preamplifier LED turns off.
7.6 Performing a ABRIS measurement
1. Observe EEG level – too much EEG noise from a restless baby (or from a very poor electrode applica-
tion) will cause the “noise bar” to be in the red zone (or the EEG to be red, if the raw EEG is displayed
instead of the “noise bar”).
2. Once noise levels are OK, press START.
3. Observe the curve and the state of the baby during the measure.
4. Wait for test to complete. Comments can be added in the Remarks window prior to saving the session.
5. Press Save and Exit when complete .
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