Instruction Manual
Kat. Nr. 98.1089
DESIGN – Radio controlled wall clock
Thank you for choosing this instrument from TFA.
1. Before you use it
• Please be sure to read the instruction manual carefully.
• Following the instruction manual for use will prevent damage
to the device and loss of your statutory rights arising from
defects due to incorrect use.
• We shall not be liable for any damage occurring as a result of
not following these instructions.
• Please take particular note of the safety advice!
• Please keep this instruction manual for future reference.
2. Field of operation and all of the benefits of your new
instrument at a glance
• Highest precision radio-controlled clock
• Analogue display with clock hands
• Large dial
• With second hand
3. For your safety
• The product is exclusively intended for the field of application
described above. The product should only be used as described
within this instruction.
• Unauthorised repairs, modifications or changes to the product
are prohibited.
Caution!
Risk of injury:
• Keep this instrument and the battery out of reach of children.
• Batteries must not be thrown into the fire, short-circuited,
taken apart or recharged. Risk of explosion!
• Batteries contain harmful acids. Low batteries should be changed
as soon as possible to prevent damage caused by a leaking battery.
• Wear chemical-resistant protective gloves and glasses when
handling leaked batteries.
Important information on product safety!
• Do not place the unit near extreme temperatures, vibration or
shock.
• Protect from moisture.
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 Main-
flingen 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. The quality of the reception depends mainly on the
geographic location. Normally there should be no reception prob-
lems within a 1,500 km radius around Frankfurt.
Please take note of the following:
• Recommended distance to any interference sources like com-
puter monitors or TV sets is at least 1.5 - 2 metres.
• 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.
• During night-time, atmospheric interference is usually less severe
and reception is possible in most cases. A single daily reception is
adequate to keep the accuracy deviation below 1 second.
4. Getting started
• Open the battery compartment and insert the battery (1 x 1.5 V
AA), polarity as illustrated. The unit is now ready to use.
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