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Operation and setting
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Real-time clock (clock)
The setting of the real-time clock is the timebase for the memory and for
the self-test. In case of disconnection of the device, the real-time clock keeps
running for at least 3 days.
Date (date)
The date is also required for the memory. A supply voltage failure doesn‘t
infl uence the date function for at least 3 days. If the device is switched off
longer than 3 days, date and time of the real-time clock have to be reset.
Test (test)
If the 24h self-test is activated in the ISO ADVANCED menu, it is possible to set
the time (hour) when the self-test ist to be carried out by means of the „TEST:
00:00“ submenu. Then the self-test is automatically carried out once a day at a
given time. If the 1 h auto test has been selected, the self-test will be carried
out at every full hour.
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