TFA 60.2536 Instrucciones De Uso página 11

TFA_No. 60.2536_Anleit_01_24
Radio-controlled alarm clock
Housing (Fig. 1+2)
N: Light sensor
O: Battery compartment
6. Getting started
6.1 Insert the batteries
• Open the battery compartment and insert two new AA 1.5 V batteries, polarity
as illustrated.
• Close the battery compartment again.
• The device will alert you with a beep and all segments will be displayed for a
short moment.
• The clock will now scan the DCF frequency signal and the DCF symbol will be
flashing on the display. When the time code is successfully received after 3-5
minutes, the radio-controlled time and the DCF symbol will be shown steadily
on the display.
• In Daylight Saving Time, DST is shown on the display.
• If reception is not possible, you can start the initialization manually.
• Press and hold – button for three seconds.
• The DCF reception symbol will be flashing. If the reception is not successfully
received, another DCF reception will take place the next full hour.
• Interrupt the reception by pressing and holding the – button again for three
seconds . The DCF reception symbol disappears.
• The DCF reception always takes place daily at 3:00 o'clock in the morning. If
the reception is not successfully received at 3:00 o'clock, the next DCF recep-
tion attempt will happen at 4:00 and 5:00 o'clock.
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Radio-controlled alarm clock
• A button operation is not possible during the DCF reception.
• There are three different reception symbols:
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 nor-
mal quartz clock. (see: Manual setting of the clock and calendar).
6.2 Note on radio-controlled time
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 DST is shown on the display. The reception quality
depends mainly on geographic 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.
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