TFA 60.2508 Mode D'emploi page 7

TFA_No. 60.2508 Anleitung 13.04.2010
TIME BLOCK
– Radio controlled alarm clock
3. Getting started
• Open the battery compartment and remove the battery safety strip.
• Insert the adapter into the jack. Connect the power adapter to a wall socket. Important!
Make sure that your household voltage is 230V! Otherwise your clock may be damaged.
• A short beep will sound.
• After a test run (11:11 until 00:00 appear on the display) the clock will scan the DCF fre-
quency signal and the DCF symbol flashes on the LCD. When the signal is received success-
fully after 3-10 minutes, the radio controlled time appears.
• Please do not press any keys during signal reception.
• If the radio-controlled clock is unable to receive a DCF signal, further attempts will be
made every hour between 2 a.m. and 5 a.m. Therefore no alarm setting is possible
between 2:00 and 2:10, 3:00 and 3:10, 4:00 and 4:10 and 5:00 and 5:10.
• Should these attempts fail, a random time will appear on the display and the symbol dis-
appears.
• Manual initialization can be helpful. Press MODE button.
• In case the clock cannot detect the DCF-signal (for example due to disturbances, transmit-
ting distance, etc.), the time can be set manually. The clock will then work as a normal
quartz clock. (see: Setting of clock and calendar).
Radio controlled time reception:
The time base for the radio controlled time is a Caesium Atomic Clock operated by the
Physikalisch Technische Bundesanstalt Braunschweig which has a time deviation of less than
one second in one million years. The time is coded and transmitted from Mainflingen near
Frankfurt via frequency signal DCF-77 (77.5 kHz) and has a transmitting range of approxi-
mately 1,500 km. Your radio-controlled clock receives this signal and converts it to show
the precise time in summer or wintertime. The quality of the reception depends greatly on
the geographic location. In normal cases, there should be no reception problems within a
1,500 km radius around Frankfurt.
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TIME BLOCK
– Radio controlled alarm clock
Please take note of the following:
• Recommended distance to any interfering sources like computer monitors or TV sets is a
minimum of 1.5 - 2 metres.
• Within ferro-concrete rooms (basements, superstructures), the received signal is naturally
weakened. In extreme cases, please place the unit close to a window and/or point its front
or back towards the Frankfurt transmitter.
• During night-time, the atmospheric disturbances are usually less severe and reception is
possible in most cases. A single daily reception is adequate to keep the accuracy deviation
below 1 second.
4. How to operate
4.1 Manual setting of clock and calendar
• Move the FUNCTION switch to 'T.SET' (TIME SET).
• The hour digits are flashing.
• Press UP or DOWN button to adjust hours.
• Press MODE button and the setting sequence is shown as follows: Minutes, seconds, year,
month and date. Adjust with UP or DOWN button.
• Move the FUNCTION switch to 'NORMAL', the time and calendar settings are finished.
• The manually set time will be overwritten by the DCF time when the signal is received suc-
cessfully.
4.2 Manual alarm setting
• Move the FUNCTION switch to AL.SET (ALARM SET).
• The hour digit and the alarm symbol (AL) start blinking.
• Press UP or DOWN button to adjust hours.
• Press MODE button and the setting sequence is shown as follows: Minutes and the snooze
interval, the default setting is 5, from 1 minute to 60. Adjust with UP or DOWN button.
• Move the FUNCTION switch to 'NORMAL'. The alarm setting is finished.
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