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O P E R A T I N G I N S T R U C T I O N S
Radio-controlled LCD Wall Clock 58007
Item no. 39 32 39
Intended use
The purpose of the radio wall clock is to decode the DCF radio signal of the caesium atomic
clock in Braunschweig (Germany), to display the time, date, moon phase and the ambient
temperature.
The device may be used only indoors. Contact with moisture, for example in bathrooms, must
be avoided.
The radio wall clock is designed exclusively for use with batteries. Do not use any other power
supply. The correct battery type is specifi ed in the "Technical Data" section.
Any use other than that described above is not permitted and can damage the product. In
addition, it can lead to dangers such as short-circuit, fi re etc.
This product complies with the applicable national and European regulations. All names of
companies and products are the trademarks of the respective owners. All rights reserved.
The safety instructions have to be followed without fail.
Safety Instructions
The warranty will be void in the event of damage caused by failure to observe
these safety instructions. We do not assume any liability for any resulting
damage.
We shall not accept liability for damage to property or personal injury caused
by incorrect handling or non-compliance with the safety instructions. In such
cases, the warranty will be null and void.
In the operating manual, an exclamation mark inside a triangle indicates im-
portant instructions.
The "hand" symbol indicates special information and advice on operating the
device.
• For safety reasons, any unauthorised conversion and/or modifi cation to the product is not
permitted.
• Do not expose the product to high temperatures, humidity, strong vibrations or heavy
mechanical loads.
• If you have any doubts about the correct operation, or the safety of the product, please
consult a specialist.
• This product is not a toy and must be kept out of the reach of children. Use the product only
out of the reach of children; the product contains parts and batteries that can be swallowed.
• Do not leave packaging material unattended. It may become a dangerous plaything for
children.
• Handle the product with care. The product can be damaged if crushed, struck or dropped,
even from a low height.
• Also observe any further safety instructions in the individual sections of these operating
instructions.
Features
• Simultaneous display of time, date, weekday, moon phase and room temperature
• Weekday display in 6 languages
• Room temperature display in °C or °F
• Automatic changeover from summer to winter time
• Display of the time in 12 or 24-hour format
• Adjustable time zone (± 12 h)
• Moon phase display
• Can be used as table or wall clock
Introduction to DCF
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The radio wall clock has a DCF-controlled clock mechanism, which automatically synchronises
the time display with the DCF signal. Thus, it is not necessary to set the clock by hand.
The time is adjusted by synchronising with the DCF signal from the caesium atomic clock
Version 02/13
at the "Physikalisch Technischen Bundesanstalt" in Braunschweig (Germany). This makes it
very accurate. In the event of a loss of the signal, the clock continues to work accurately as a
quartz clock.
What is DCF?
The DCF-signal is an encoded radio signal, which carries
the time information from the caesium atomic clock at PTB
Braunschweig.
The atomic clock is so accurate that a theoretic deviation
of ± 1 second is only to be expected after 1 million years.
The DCF signal is encoded and transmitted via a DCF
transmitter in Mainfl ingen near Frankfurt. The transmitter
has a range of approximately 1,500-2,000 km.
Clocks that are equipped with a DCF receiver can receive
and decode the DCF signal within this transmission range.
Setting the time manually is not necessary with DCF clocks (e.g. changing the time from
summer to winter time).
Similar to the reception of radio signals, the DCF signal reception is very dependent on location
and position, as well as interference e.g. from computers, TV sets or microwave ovens.
Ferro-concrete walls, which dampen the DCF signal, can be a further cause for poor reception.
Inserting/Replacing the Battery
• Open the battery compartment lid on the back of the device.
• Insert one new 1.5 V mignon battery (AA) in the battery compartment, paying attention to the
correct polarity. The correct polarity is indicated in the battery compartment.
• Close the battery compartment.
• The clock now starts searching for the DCF signal and tries to tune in.
• If a battery symbol is indicated below the DCF symbol in the display, the battery is fl at and
should be replaced as described above.
• To ensure a long battery life, use only alkaline types.
Installation/Setup
The radio wall clock can stand up or hang on the wall.
• To set up the clock, fold out the mounting foot on the device's rear and place the clock on a
level, fl at and stable surface.
• Protect valuable furniture surfaces by using an appropriate underlay; otherwise, it may cause
scratches.
• There is a suspension eye on the back of the device for wall mounting.
• Secure the clock in place with a screw that protrudes a few millimetres from the wall. Then
hang the clock on the screw head with the suspension eye.
Batteries should be kept out of the reach of children.
Make sure that the polarity is correct when inserting the battery.
Remove the battery, if you are not going to use the device for a while, to
prevent damage from leaking. Leaking or damaged batteries/rechargeable
batteries can cause acid burns upon contact with skin. Thus, you should wear
protective gloves when handling damaged batteries/rechargeable batteries.
Keep them out of the reach of children. Do not leave batteries lying around.
There is the risk that the batteries may be swallowed by children or pets. If
they are swallowed, consult a doctor immediately.
Make sure that the battery is neither short-circuited nor thrown into a fi re.
There is a risk of explosion.
Do not recharge normal, non-rechargeable batteries; there is a risk of explo-
sion! Charge rechargeable batteries intended for that use only. Use an appro-
priate battery charger.
Rechargeable batteries may be used, but due to the lower voltage output (recharge-
able battery = 1.2V, standard battery = 1.5V) and the lower capacity, the service life
is shorter.
1500 km
2000 km
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