Maico MB 11 BERAphone, Operation Manual

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Operation Manual MB 11 BERAphone
®
/Classic
8100496 Rev. 6 19 23/10/2019
Troubleshooting
In case of problems see below for symptoms, possible causes and suggested
troubleshooting (Table 2).
Table 2 Troubleshooting
SYMPTOM POSSIBLE
CAUSE SUGGESTED TROUBLESHOOTING
Instrument
does not turn
on Connections
are not
working 1. Verify that the USB cable is connected securely
into both the USB box of the MB 11 hardware as
well as the computer USB port.
2. Verify that the USB port on the PC meets the
specifications described in section 4.4.3.
3. Verify that the PC is powered on.
Error
Message:
EEG quality Humming
noise with a
large affect on
the meas-
urement quality 1. Remove the disturbance source or attempt to
test at another place.
2. Press OK and the test starts automatically.
Only for BERAphone
®
Impedance
traffic light
remains red Poor fit or
insufficient
skin
preperation 1. Shift the position of the BERAphone
®
electrode(s) with poor impedance slightly
making sure it is in contact with the area of the
skin that was prepared with the electrode gel.
2. Remove the BERAphone
®
and massage a little
more gel at the site. Apply a little more gel.
3. Use an electrode skin preparation product such
as Nuprep
®
or an electrode skin prep pad at the
site, wipe it off and then re-apply gel to the site.
Measurement
is running
properly but
with large
regular EEG
fluctuations Electrical
artifact in
environment or
poor electrode
contact 1. Check the connection of the electrodes to the
baby’s skin and reapply if necessary.
2. Look for sources of electrical noise in the
room, cell phones, other equipment nearby or
attached to the baby.
3. Change location if necessary.
High artifact
(poor signal
quality)
during the
screening Baby is
unsettled and
produces
noises 1. Check the state of the baby. A quiet, sleeping baby
is most conducive to a high quality screening.
Calm the baby with a pacifier if appropriate.
2. Position the baby so he/she is comfortable
and in a way to release any tension in the
neck. A rolled up blanket tucked at the baby’s
side and in the curve of the back and neck can
help to release any tension in this area.
3. Check that the BERAphone
®
has not slipped
away from the prepared electrode sites and
the electrodes are in contact with the skin. If
so, shift it back into place.