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PRIMAVERA - Wireless weather station
PRIMAVERA - Wireless weather station
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If the clock cannot detect the DCF-signal (for example due to disturbances, transmitting distance, etc.), the
time can be set manually. The DCF symbol disappears and the clock will then work as a normal quartz clock.
(see: Manual settings).
6.3.1 Note for radio-controlled time DCF
The time base for the radio-controlled time is a caesium atomic clock operated by the Physikalisch Technische
Bundesanstalt Braunschweig. 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 frequency signal DCF-77 (77.5 kHz) and has a trans-
mitting range of approximately 1,500 km. Your radio-controlled clock receives this signal and converts it to
show the precise time. Changeover from summer time or winter time is automatic. In Daylight Saving Time
“DST” is shown on the LCD. The quality of the reception depends mainly on the geographic location. Normally
there should be no reception problems within a 1,500 km radius around Frankfurt.
Please take note of the following:
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The recommended distance to any interfering sources like computer monitors or TV sets is at least 1.5 - 2
meters.
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Inside ferro-concrete rooms (basements, superstructures), the received signal is naturally weakened. In
extreme cases, please place the unit close to a window to improve the reception.
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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.
6.4 Inserting the batteries in the basic station
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The batteries will operate as a backup power source in case of power failure.
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For a permanent backlight use the supplied power adapter.
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Open the battery compartment at the back of the basic station.
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Insert two new batteries 1,5 V AAA into the battery compartment. Make sure the polarity is correct.
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Close the battery compartment again.
7. Operation
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During the operation, all successful settings will be confirmed by a brief beep tone.
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The device will automatically quit the setting mode if no button is pressed for a long period of time.
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Press and hold the +/RCC or -/°C/°F button in the setting mode for fast running.
7.1 Manual settings
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Press and hold the SET button in normal mode for two seconds, to enter the setting mode.
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The continuous backlight will turn on automatically.
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TIME ZONE and 0 (default) will be flashing on the display.
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Press the +/RCC or -/C/°F button to make the time zone correction.
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Press the SET button again.
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TIME appears on the display.
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The setting sequence is shown as follows: 12 or 24 hours system (24H default), the hours, the minutes, the
year (YEAR appears on the display), the month and the day. Press the +/RCC or -/°C/°F to adjust it.
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The weekday (MON, TUE, WED, THU, FRI, SAT or SUN appears on the display) will be calculated automatically
after setting the date.
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Confirm the setting with the SET button.
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The manually set time will be overwritten by the DCF time when the signal is received successfully.
7.1.1 Setting of the time zone
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In the setting mode you can make the time zone correction (-12/+12).
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The time zone correction is needed for countries where the DCF signal can be received but the time zone is
different from the German time (e.g. +1=one hour later).
7.1.2 Setting of the 12 and 24 hours display
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In the setting mode you can choose between the 12 - and 24 hour system.
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In the 12 HR system AM or PM (after 12 o'clock) appears on the display.
6. Getting started
6.1 Connecting the basic station to power adapter
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Place both instruments on a desk with a distance of approximately 1.5 meter. Avoid getting close to possible
interference sources (Electronic devices and radio installations).
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Remove the protective foil from the display of the basic station.
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Connect the basic station to the attached power adapter. Insert the adapter into the jack at the basic station
and connect the power adapter to a wall socket. Important! Make sure that your household voltage is 230V!
Otherwise your device may be damaged.
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The device will alert you with a beep and all LCD segments will be displayed for a short moment.
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TIME and 0:00 (default) appear on the display.
6.2 Inserting the batteries in the outdoor transmitter
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Open the screwed battery compartment of the outdoor transmitter.
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The slide switch for channel selection is at position 1 (default).
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Insert two new batteries 1,5 V AAA, polarity as illustrated.
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Close the battery compartment again.
6.2.1 Reception of the outdoor values
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The outdoor values of the outdoor transmitter will be transmitted to the basic station. The displays of the out-
door values are flashing “--.-”.
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On the display of the basic station appear the channel number, the outdoor humidity and the outdoor temper-
ature in °C (default).
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If the reception of the outdoor values fails within three minutes, “- -” appears on the display. Check the power
adapter and the batteries of the transmitter and try it again. Check if there is any source of interference.
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You can also start the outdoor transmitter search manually later on (for example when the outdoor transmitter
is lost or the batteries are changed).
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Hold the CH button on the basic station for three seconds.
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“---” appears on the display.
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Press the TX button in the battery compartment of the outdoor transmitter.
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The device will alert you with a beep and the basic station receives the values from the outdoor transmitter.
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After successful installation close the battery compartment of the outdoor transmitter carefully.
6.3 Reception of the DCF frequency signal
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After the reception of the outdoor values, the device will now scan the DCF frequency signal and the DCF
symbol will be flashing on the display.
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To avoid interference, the backlight (and the USB output) turns off during the reception of the radio con-
trolled clock.
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When the time code is received successfully after 2-12 minutes, the radio-controlled time and the DCF sym-
bol are displayed steadily in the display. The backlight is activated permanently.
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You can start the initialization manually.
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Press and hold the +/RCC button.
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The DCF symbol will be flashing.
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The continuous backlight will turn off automatically.
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Interrupt the reception by pressing the +/RCC button again for three seconds. The DCF symbol disappears.
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The DCF reception always takes place hourly between 2:00 and 5:00 o'clock in the morning. If the reception
is not successfully received until 5:00 o'clock, the next receive operation is again at 2:00 o'clock in the morn-
ing.
There are three different reception symbols:
flashing - reception is active
stays - reception is very good
no symbol - no reception / time is manually set
TFA_No. 35.1136_Anleitung_09_16 20.09.2016 10:12 Uhr Seite 9
