103
UMG 509
Battery
The internal clock is fed from the supply voltage.
If the supply voltage fails then the clock is powered by the
battery. The clock provides date and time information,
for the records, min. and max. values and events, for
example.
The life expectancy of the battery is at least 5 years
with a storage temperature of +45°C. The typical life
expectancy of the battery is 8 to 10 years.
The battery (type CR2450 / 3V) can be replaced
by the user.
Firmware update
If the device is connected to a computer via Ethernet,
then the device firmware can be updated via the GridVis
software.
The new firmware is transferred by selecting a
suitable update menu (
Tools/Upgrade Devices
menu)
and the device.
Fig. GridVis firmware update assistant
C
Firmware may NOT be updated via
the RS485 interface.
Fig. Replacing the battery using long-nose pliers
Содержание UMG 509
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