TFA 35.1158.01 Mode D'emploi page 14

TFA_No. 35.1158_Anleitung_multi 20.08.2020
ELEMENTS – Wireless weather station
• Insert at first two new batteries 1,5 V AAA in the battery compartment of the transmitter and immediately afterwards three
new batteries 1,5 V AAA in the battery compartment of the base station. Make sure the polarities are correct.
• After a successful installation close the battery compartments carefully.
6.2 Outdoor values reception
• After the batteries are inserted, the outdoor values will be transmitted to the base station. The reception symbol for the
transmitter flashes.
• If the reception of the outdoor values fails, "- - _ - -°C" remains on the base station display. Check the batteries and try it
again. Check if there is any source of interference.
• You can also start the outdoor transmitter search manually later on (for example when the outdoor transmitter is lost or the
batteries are changed). Press and hold the
cancelled.
6.3 Radio-controlled time reception
• After the reception of the outdoor values, the clock will now scan the DCF frequency signal and the DCF reception symbol
flashes on the display. When the time code is successfully received after 3-7 minutes, the radio-controlled time, the date,
the day of the week and the DCF symbol will be shown steadily on the display.
• The clock automatically scans the time signal at 1 a.m., 2 a. m. and 3 a.m. every day to maintain accurate timing. If the
reception fails, it will repeat again at 4 a.m. and 5 a.m (less disturbances).
• You can also start the initialization manually. Press and hold the
will be flashing.
• Press the button again during the active DCF77 signal reception to stop scanning the DCF time signal. The DCF
reception symbol disappears.
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button for three seconds. The last registered transmitter (channel) will be
button for 2 seconds. The DCF reception symbol
ELEMENTS – Wireless weather station
• There are three different reception states:
flashing symbol – reception is active
solid – reception is very good
no symbol – no DCF reception
• By default, the DCF reception is activated and after successful reception of the DCF signal no manual time setting is ne-
cessary.
• If the clock cannot detect the DCF-signal (e.g. due to interference, transmitting distance, etc.), the time can be set manual-
ly. The clock will then work as a normal quartz clock. (see: Setting of the clock and calendar).
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. Your wireless weather station receives the signal, converts it and always shows the exact
time. 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.
• 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.
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