D-0114042-D – 2020/03
Sera™ - Additional Information Page 44
Touchscreen is
non-responsive to
Software is frozen in a
process.
Hold the Sera
TM
power button down for 10 seconds
to force a power off and then reboot the system.
Sera
TM
battery is
not charging when
device is in the
Poor connection to the power
supply; wrong power supply.
Verify that you are using the correct power supply
for the Sera
TM
and it is properly connected.
“Out of ear”
message during
The probe is coming out of the
ear or has fallen out
It is recommended to stop the test and start again
since reinsertion of probe in ear needs a new in-
ear calibration process before testing.
Excessive artifacts
are observed
during the
Automated ABR
measurement.
Baby is too active, moving,
sucking, crying, muscle
Pause the recording and calm the baby. Swaddle
the baby in a blanket. Resume recording only
Electrode has lost contact with
Check contact of electrodes to the skin at the
Electrode lead wire has a
short in the wire which may
lead to intermittent contact.
Replace the electrode lead wire with a new one
(you may need to replace more than one of the
Electrical interference is
interfering due to AC
If Sera
TM
is being used in the cradle with the AC
plugged in, unplug the cradle power supply from
the outlet and run on battery only.
Electromagnetic interference
is present from other
electronic devices in the
environment.
Shut down all unnecessary devices near the test
area including cell phones, tablets, lights, TVs, etc.
Move as far away as possible from devices that
cannot be powered off.
Ask the baby’s doctor or nurse to assist with
troubleshooting if the baby is connected to
monitoring devices to determine if they can be
powered off temporarily for troubleshooting.
RFID devices used for security that are attached to
or near the baby may cause interference. Ask the
nurse or doctor if they can be temporarily removed.
Try testing is a different location.
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