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Operating, transport, and storage conditions
The hearing instruments operate in the following
environmental conditions (also valid in between uses):
Operating conditions Discharging
Charging
Temperature
0 to 50 °C
(32 to 122 °F)
10 to 35 °C
(50 to 95 °F)
Relative humidity
5 to 93 %
5 to 93 %
Atmospheric pressure 700 to 1060 hPa 700 to 1060 hPa
During extended periods of transport and storage, please
observe the following conditions:
Storage
Transport
Temperature
(recommended)
10 to 25 °C
(50 to 77 °F)
-20 to 60 °C
(-4 to 140 °F)
Temperature
(maximum range)
10 to 40 °C
(50 to 104 °F)
-20 to 60 °C
(-4 to 140 °F)
Relative humidity
(recommended)
20 to 80 %
5 to 90 %
Relative humidity
(maximum range)
10 to 80 %
5 to 90 %
Atmospheric
pressure
700 to 1060 hPa 700 to 1060 hPa
Note that you have to charge the hearing instruments
at least every 6 months. For details refer to section
"Maintenance and care".
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