Appendix
A.3 Technical data
Real-time clock (RTC)
Back-up
of real-time clock
①
②
180
200
160
140
120
100
80
60
40
20
0
0
2 4 6 8 10 2012 141 3 5 7 9 11 13
55°C
25°C
15 17 1916 18
280
300
260
240
220
① Backup time (hours) with fully charged double layer capacitor
② Service life (years)
Accuracy
of the real-time clock
typ. ± 2 s/day (± 0.2 h⁄year)
depending on ambient air temperature fluctuations of up to
± 5 s/day (± 0.5 h⁄year) are possible
The supercapacitor's full charge will be reached if the easyE4 device is
connected to the power supply for 24 hours.
828
easyE402/24 MN050009ENEaton.com