TFA Dostmann Juno Bedienungsanleitung Seite 7

TFA_No. 35.1131_Anleit_03_14 21.03.2014
JUNO – Wireless weather station
• Batteries contain harmful acids. Low batteries should be changed as soon as possible to prevent
damage caused by leaking. Never use a combination of old and new batteries together, or bat-
teries of different types. Wear chemical-resistant protective gloves and safety glasses when han-
dling leaking batteries.
Important information on product safety!
• Do not place your product near extreme temperatures, vibrations or shocks.
• Protect it from moisture.
• The outdoor transmitter is protected against splash water, but is not watertight. Choose a shady
and dry position for the transmitter.
5. Elements
Basic station (Receiver)
A: Display (Fig. 1):
A 1: Tendency indicator
Weather symbol
Frost symbol
A 2: Outdoor temperature
Indoor temperature and humidity
A 3: DCF reception symbol
Date and time
B: Housing (Fig. 1):
B 1: Wall mount hole
B 2: Battery compartment
B 3: Stand (fold out)
C: Outdoor transmitter (Fig. 2):
C 1: Battery compartment
C 2: Stand (removable) with wall mount hole
6. Getting started
• Place the basic station and the 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 station.
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11:25 Uhr Seite 7
JUNO – Wireless weather station
6.1 Inserting the batteries into the basic station and the transmitter
• Slide down the battery compartment lid of the transmitter.
• Insert the two batteries 1,5 V AAA into the battery compartment of the outdoor transmitter.
Make sure the polarities are correct.
• Open the battery compartment of the basic station.
• Insert the two batteries 1,5 V AAA into the battery compartment of the basic station. Make sure
the polarities are correct.
6.2 Reception of outdoor temperature
• After the batteries are inserted the outdoor temperature will automatically transmitted to the
basic station.
• As soon as the basic station receives the outdoor temperature, the value is permanently shown.
• If the reception of outdoor temperature fails, "- -" appears on the display. Check the batteries
and try it again. Check if there is any source of interference.
• After successful installation close the battery compartment of the outdoor transmitter carefully.
6.3 Reception of the DCF frequency signal
• After the reception of outdoor temperature, the clock is now trying (3 – 5 minutes) to receive
the radio signal and the DCF reception symbol will be flashing.
• When the time code is received successfully after a few minutes, the radio-controlled time and
the DCF symbol are displayed steadily in the LCD.
• The clock automatically scans the time signal every hour to maintain accurate timing.
• There are three different reception symbols:
flashes - reception is active
stays - reception is good
- no DCF reception
Radio-controlled time reception
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 mil-
lion 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 approximately 1,500 km. Changeover from
summer time or winter time is automatic. 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.
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