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CHARGE-IT – Radio-controlled alarm clock with USB charging function
Do not apply excessive force when connecting the USB plug. A USB plug fits only one way into
the USB port.
5. Elements (Fig. 1+2)
A: Display:
A 1: Time A 2: AM/PM
A 3: Alarm symbol A 4: Radio-controlled time symbol
A 5: Daylight Saving Time symbol A 6: Date and weekday
A 7: Battery symbol A 8: Indoor temperature and humidity
A 9: Loading status port 1+2
B: Buttons:
B 1: + button B 2: - button
B 3: ALARM button B 4: NAP button
B 5: SET / RCC button B 6: SNOOZE/LIGHT button
C: Housing:
C 1: USB Port 1 (1.0 Amp) C 2: USB Port 2 (2.0 Amp)
C 3: Battery compartment C 4: Cable holder
C 5: Power adapter jack
6. Getting started
Remove the protective film from the display.
Connect the attached power adapter to the alarm clock. Insert the adapter into the jack and con-
nect the power adapter into a mains socket. Important! Make sure that your household voltage is
230V! Otherwise your device may be damaged.
The device will alert you with a beep and all segments will be displayed for a short moment.
The indoor temperature and humidity appear in the display.
6.1 Reception of the DCF frequency signal
Press the SET / RCC button. The clock will now scan the DCF frequency signal and the DCF sym-
bol flashes. The backlight is deactivated.
CHARGE-IT – Radio-controlled alarm clock with USB charging function
When the time code is successfully received after 3-10 minutes, the backlight will be activated
again. The radio-controlled time, the DCF symbol, the date and the weekday will be shown steadi-
ly on the display.
The DCF reception always takes place at 1:00 and 2:00 o'clock in the morning. If the reception is
not successfully received at 2:00 o'clock, further attempts will be taken until 5:00 o'clock.
There are three different reception states:
flashing – reception is active
solid – reception is very good
no symbol – no DCF reception
If the clock cannot detect the DCF-signal (e.g. due to interference, transmitting distance, etc.), the
time can be set manually.
The clock will then work as a normal quartz clock. (see: Manual settings).
6.1.1 Radio-controlled time reception
The time base for the radio-controlled time is a caesium atomic clock operated by the Physikalisch
Technische Bundesanstalt based in Braunschweig (Brunswick), Germany. It has a time deviation of
less than one second in one million years. The time is coded and transmitted from Mainflingen near
Frankfurt via the frequency signal DCF-77 (77.5 kHz) and has a transmitting range of approximately
1,500 km. The adjustment to Daylight Saving Time (summer/winter time) is automatic. In Daylight
Saving Time the DST symbol is shown on the display. The reception quality depends mainly on geo-
graphic location. Normally there should be no reception problems within a 1,500 km radius around
Frankfurt.
Therefore, please note the following steps:
The recommended distance to any interfering sources like computer screens or TV sets is at least
1.5 - 2 meters.
Within concrete walls (reinforced with steel) such as basements, the received signal is naturally
weakened. In extreme cases, please place the unit close to a window to improve reception.
During night-time, the atmospheric interference is usually less severe and reception is possible in
most cases. A single daily reception is adequate to keep the accuracy deviation under 1 second.
6.2 Insert the batteries
The batteries will operate as a backup power source in case of power failure.
For a permanent backlight, to use the charging function and to conserve battery power, use the
supplied power adapter.
TFA_No. 60.2537_Anleit_08_16 12.09.2016 17:36 Uhr Seite 10
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