8. TAKING CARE OF YOUR DEVICE
Cleaning and disinfecon
Before switching between Users, and it is recommended that every week, carefully clean all parts
of the device that come in contact with the skin. The disinfecon processes should include one or
more of the following methods:
• Exposure to UV lamp.
• Cleansing with coon soaked with a small quanty of ethyl or isopropyl alcohol.
• Cleansing with a soluon containing Alkyl C12-16 Dimethylbenzyl Ammonium Chloride.
Do not use cleaning agents other than those described above without explicit wrien instrucons
from Empaca support.
Types of electrodes
The E4 comes with two types of user-replaceable 8mm diameter electrodes: stainless steel and
silver (Ag). Please note that the Stainless steel electrodes are darker than the Ag ones.
Extensive tesng has demonstrated that the stainless steel electrodes are performing as well as
classic Ag electrodes when used with the E4. Stainless steel electrodes are hypoallergenic and
should last for the life of the device. The Ag electrodes should last for months under connuous
use but will oxidize, picking up a grey tarnish over me. The EDA electrodes should not be replaced
frequently as screwing and unscrewing repeatedly may degrade the performance of the sensor.
Reserve electrode replacement for end-of-life replacement of Ag electrodes or for electrode
comparison studies. It is not necessary to change electrodes between Users. The disinfecon
process can be done when the electrodes are aached to the E4.
Replacing the electrodes
When necessary the E4 electrodes should be changed by hand. Rotate them counter-clockwise to
loosen and clockwise to ghten. Make sure the electrodes are ghtened securely aer replacement
to ensure maximum data quality. Secure the electrodes by hand, not using a tool, to avoid damaging
the mechanical connecon to the E4 band.
If the electrode cannot be removed then the screw-post may be damaged. Report any problems to
support@empaca.com for further instrucons.
The Empaca E4 has a 2-year expected lifeme, considering the correct condions of use.
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