Medusa4Z BioAmp
Biological signals from the subject are input to the Medusa4Z for ampli
fi
cation and
digitization. The Medusa4Z transfers digitized data to the RZ6 processor via a
fi
ber optic cable.
The
fi
ber optic connection electrically isolates the Medusa4Z from the RZ6 and ensures that
no additional noise is introduced to the biologic signal. This design is intended to be used with
the preampli
fi
er running on battery power alone, placed inside the Faraday cage with only the
fi
ber optic cable connecting it to the RZ6.
Max Input:
± 10 milliVolts max input.
Gain:
The Medusa4Z ampli
fi
es the signal by 100x before digitizing and transferring it to the
RZ6. The RZ6 automatically accounts for this 100x gain when receiving the data, yielding
a net
unity gain
.
Power:
The Medusa4Z is powered by a Lithium-ion battery. It can be charged in 4-6 hours and
will power the ampli
fi
er for up to 30+ hours when using a single active channel.
By default the Medusa4Z will boot up as shown above. A few changes must be made to the
default settings to use for ABRs.
The supplied battery charger must
NOT
be connected or inside the enclosure when running experiments. To
protect the battery, do not leave the Medusa4Z on the charger for an extended period of time (1+ week).
Important
The Test Equipment | 15
