Siemens 7LF4 542-0 Instrucciones De Operación página 34

Automatic channel switching
Only available in EXPERT mode
On two-channel time switches a cyclic switch between channels can be set to conserve and/or ensure even use of connected equipment such as lamps and lights.
For example, with two sets of lights, one can be used all night long and the other for part of the night only. However, cyclical inversion of the outputs ensures that
the lamps are on for the same length of time on average.
The outputs are automatically swapped over once a day (12 noon) or once a week (Sunday at 12 noon).
GPS
During normal operation the GPS-signal is actively decoded every 6 hours for 30 minutes. The time zone is not synchronised. A manual adjustment is necessary. By
activating the expert mode the resolution of the coordinates can be increaded from degree to minute
Status of synchronisation:
The time and local coordinates are synchronous to GPS
the last sychronisation was not possible
the last two sychronisations were not possible
Sychronisation is not possible
Cell disposal
34
2514264126-02
3ZW1012-7LF45-0AA0
2 1 4
0 6 12 16 24
Warning: Elektrical shock - Disconnect all
power from the device before dismantling the
module and replacing the battery.
Always use a Li cell type battery (LiMnO2)
CR2477, 3V high temperature type min +85 °C
Synchronising on GPS signal.
GPS signal will be read in.
The time and local coordinates are
synchronous to GPS
The sychronisation starts when either
• an antenna is connected,
• the power supply is switched on,
• the time or date has been changed manually,
• Reset is activated
• or the GPS RESTART menu option is selected.