2.2 Use of Saline Hydration Sensor Pack and Felt Inserts
Open the Saline Hydration Sensor Pack with the white felt inserts inside. The inserts will be
mounted in the neuroheadset arms but must be properly wetted with saline solution first. The
saline solution is harmless but allows the felt pads to make good contact with the skull when
properly positioned on the head. This is a very important step.
Pour a small amount of saline onto each of the sensors (6 or 7 drops if completely dry). Once you
have moistened the sensors, pour a small amount of saline onto the large white hydrator pad to
evenly moisten the entire pad. Close the hydrator and allow the sensors to absorb some of the
saline. You can shake or invert the hydrator unit so that the liquid is evenly distributed and
absorbed into the felt pads. Note: For user comfort the sensor pads should be damp but not
dripping wet. If the pads do not feel slightly wet, you may also place one or two more drops of the
solution directly on the pads from the top to speed the process of absorption.
Following the initial hydration step, each of the inserts must be removed from the pack and securely
mounted in the EPOC neuroheadset arms by turning the inserts one quarter turn to the right and
listen/feel for the click. If you do not hear or feel the click, try again until you do. A very firm force
may be needed the first couple of times but be careful not to exert excessive force or you may
damage the headset arms. Practice on the sockets in the hydrator a few times if you are unsure.
Ensure that each sensor is locked in place. Note that the sensor location behind the ears is fitted
with a soft rubber comfort pad. This should remain in place unless the normal Reference sensors
do not contact properly (see below for alternative Reference Sensor location)
The fully populated neuroheadset should look like this:
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