ACU-RITE 13131W2 Manuel d'instruction - Page 11

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ACU-RITE 13131W2 Manuel d'instruction
About the Atomic Clock
A clock is considered atomic if it has an accuracy of one second in a million
years. Consumer clocks are considered atomic if they attain this accuracy by
receiving a signal from an atomic clock. In North America, the National Institute
of Standards and Technologies operates an atomic clock in Colorado which
transmits the time codes via the the radio station WWVB. The signal is
transmitted in a very low frequency (60,000 Hz). The Acurite clock you have
purchased includes a built-in receiver which picks up the signal from the WWVB
station. For the best possible reception, place the main unit with the back side
facing Colorado. NOTE: Due to solar radiation in the atmosphere, the atomic
clock signal is weaker during the day. Most synchronization with the WWVB
atomic clock signal happens at night when there is less interference.
2 • SETUP
Main Unit : Basic Setup
After installing batteries, the year, month, date, time, time zone and DST
(daylight saving time) preferences must be set initially. After the initial manual
setting, the atomic clock will maintain it's accuracy and adjust for DST
automatically.
To enter into the setup selection mode, press AND HOLD the "SELECT" button.
1. Set Year using " " and " " buttons. Press "SELECT" to confirm.
2. Set month using " " and " " buttons. Press "SELECT" to confirm.
3. Set date using " " and " " buttons. Press "SELECT" to confirm.
4. Set current time hour using " " and " " buttons. Press "SELECT" to confirm.
5. Set current time minutes using " " and " " buttons. Press "SELECT" to
confirm.
6. Set time zone using " " and " " buttons. Press "SELECT" to confirm.
7. Set DST using " " and " " buttons. Press "SELECT" to confirm.
8. Set alarm time hour using " " and " " buttons. Press "SELECT" to confirm.
9. Set alarm time minute using " " and " " buttons.
Press "SELECT" again to confirm and exit setup selection mode.
TO SELECT ºF OR ºC FOR INDOOR TEMPERATURE DISPLAY:
Press the ºF/ºC button located within the battery compartment on the bottom
of the alarm clock.