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CASA –
Wireless weather station
CASA –
Wireless weather station
• You can start the initialization manually. Press the SENSOR button on the
base station.
4.1. Radio-controlled time reception
• After approximately 5 minutes after the installation of the batteries, the clock
will scan the DCF frequency signal and the DCF symbol will be flashing. When
the time code is received successfully after 6-16 minutes, the radio-con-
trolled time and the DCF symbol are displayed steadily in the LCD.
• You can also start the initialization manually.
• Press the RCC button.
• The DCF symbol will be flashing.
• Interrupt the reception by pressing the RCC button again for three
seconds. The DCF symbol disappears.
• The DCF reception always take place at 2:00 am, 8:00 am, 14.00 pm and
20.00 pm o'clock. If the reception is not successfully received at 2:00 clock,
it shall be held further attempts at 3.00 am and 4.00 am.
• 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: Manu-
al setting of the clock).
4.1.1 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 devi-
ation of less than one second in one million years. The time is coded and trans-
mitted from Mainflingen near Frankfurt via frequency signal DCF-77 (77.5 kHz)
and has a transmitting 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 geo-
graphic location. Normally there should be no reception problems within a
1,500 km radius around Frankfurt.
Please take note of the following:
• The recommended distance to any interfering sources like computer monitors
or TV sets is at least 1.5 - 2 meters.
3.2 Outdoor transmitter
Front (Fig. 2)
D1:
LED signal lamp
D2:
Channel number
D3:
Outdoor temperature/outdoor humidity in sequence
D4:
Battery symbol
Back (Fig. 3)
D5:
Wall mounting hole
D6:
Support with battery compartment
Inside battery compartment
D7:
RESET button
D8:
CH 1,2,3 switch
4. Getting started
• Place the base station and the outdoor transmitter on a desk with a distance
of approximately 1.5 meter. Avoid getting close to possible interference
sources (Electronic devices and radio installations).
• Remove the protective foil from the display of the base station.
• Open the battery compartment of the base station and insert two new batter-
ies 1.5 V AA, polarity as illustrated. Close the battery compartment again.
• Open the battery compartment of the outdoor transmitter.
• For the first outdoor transmitter set the CH 1/2/3 switch to number one.
• Insert two new batteries 1,5 V AA, polarity as illustrated. On the display
appear the outdoor temperature and humidity in sequence and the channel
number 1. The signal lamp will be flashing.
• Press at first the RESET button on the base station by using a pointed object
and press than the RESET button in the battery compartment of the outdoor
transmitter. Close the battery compartment of the outdoor transmitter again.
• The indoor temperature and humidity will be displayed on the base
station and the base station will now scan the outdoor temperature and
humidity. The reception symbol will be flashing. If the reception is successful
on the display appear the outdoor values and the set canal number.
• If the reception of outdoor temperature and humidity fails, “- -” appears on
the display. Check the batteries and try it again. Check if there is any source
of interference.
TFA_No. 35.1135_Anleit_04_20 22.04.2020 11:19 Uhr Seite 11
