Interacoustics Sera Additional Information page 48

Problem
Touchscreen is
non-responsive to
touch.
Sera battery is
TM
not charging when
device is in the
cradle.
"Out of ear"
message during
OAE test.
Excessive artifacts
are observed
during the
Automated ABR
measurement.
D-0114042-D – 2020/03
Sera™ - Additional Information
Explanation
Software is frozen in a
process.
Poor connection to the power
supply; wrong power supply.
The probe is coming out of the
ear or has fallen out
completely.
Baby is too active, moving,
sucking, crying, muscle
tension, etc.
Electrode has lost contact with
the skin.
Electrode lead wire has a
short in the wire which may
lead to intermittent contact.
Electrical interference is
interfering due to AC
connection.
Electromagnetic interference
is present from other
electronic devices in the
environment.
Solution
Hold the Sera power button down for 10 seconds
TM
to force a power off and then reboot the system.
Verify that you are using the correct power supply
for the Sera and it is properly connected.
TM
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.
Pause the recording and calm the baby. Swaddle
the baby in a blanket. Resume recording only
when the baby is quiet.
Check contact of electrodes to the skin at the
prepared sites.
Replace the electrode lead wire with a new one
(you may need to replace more than one of the
electrode wires).
If Sera is being used in the cradle with the AC
TM
plugged in, unplug the cradle power supply from
the outlet and run on battery only.
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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