Display Options - TFA Change Mode D'emploi

TFA_No. 60.2544_anl_02_18 26.02.2018
CHANGE – Radio-controlled alarm clock
• 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).
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 sig-
nal 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.
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CHANGE – Radio-controlled alarm clock
• 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.
7. Operation

7.1 Display options

• Press the dial in normal mode to toggle through the display options:
1. Clock, seconds, weekday
2. Date, weekday
3. Humidity, indoor temperature
4. Alarm time
• Press the dial again and a circle symbol will appear.
• The 4 displays appear alternately.
• Press the dial again to deactivate the function.
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