Conrad Jumbo Bedienungsanleitung Seite 3

O P E R A T I N G I N S T R U C T I O N S
Jumbo Radio Table Calendar Watch
Item-No. 67 17 22
This product complies with all current national and European requirements.
Intended Use
The Jumbo Radio Table Calendar Watch is used to decode the DCF radio signal of the caesium
atomic clock in Braunschweig and to display the time of day, the calendar overview, and the
ambient temperature and offers an alarm and reminder function.
The device may only be used indoors, not outdoors. Contact with moisture, for example in bath-
rooms, must be avoided.
The Jumbo Radio Table Calendar Watch is solely designed for operation with batteries. Do not
use any other power supply. The suitable battery type is listed in the "Technical Data" section.
Any use other than described above is not permitted and can damage the product. In addition,
it can lead to dangers such as short-circuit, fire and electrical shock.
The safety instructions have to be observed without fail!
Safety Instructions
The warranty will be void in the event of damage caused by failure to observe
these safety instructions. We will not be held responsible for the conse-
quences!
We do not assume any liability for material and personal damage caused by
improper use or non-compliance with the safety instructions. The warranty
will be void in such cases.
An exclamation mark in a triangle indicates important information in these
operating instructions, which must be followed.
The "hand" symbol indicates special information and advice on operating the
device.
• For safety and approval (CE) reasons, unauthorised conversion and/or modifications to the
product are not permitted.
• Do not expose the product to high temperatures, strong vibrations or heavy mechanical loads.
• If you have any doubts about the correct operation, or the safety of the product, please con-
sult a specialist.
• Keep the product and the batteries out of the reach of children. They are not a toy.
• Do not leave packing materials unattended. It may become a dangerous plaything for children.
• Also observe the safety instructions in the individual sections of this operating guide.
Controls and Parts
A1 display of time
A2 alarm symbol
A3 Date display
A4 Year Display
A5 DCF symbol
A6 Calendar overview
A7 Week Display
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B1 +12/24 key C1 battery compartment
B2 MODE/SET key
B3 °C/°F-button
B4 Button S
B5 HOME button
B6 Button F
B7 SNOOZE/LIGHT button
B8 ALARM ON/OFF switch
B9 RESET button
Introduction to DCF
The Jumbo Radio Table Calendar Watch features a DCF controlled clockwork, which automati-
cally synchronises the time display with the DCF signal. Thus, setting the clock by hand is not
necessary.
Version 04/09
The time is adjusted by synchronising with the DCF signal from the caesium atomic clock 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 theoretical deviation of +/- 1 second is only to be expect-
ed after 1 million years.
The DCF signal is encoded and transmitted via a DCF transmitter in Mainflingen near Frankfurt.
The transmitter has a range of approximately 1,500 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 winter
to summer time).
Similar to receiving 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 Batteries
Keep batteries out of the reach of children.
Make sure that the polarity is correct when inserting the batteries.
Remove the battery, if you are not going to use the device for a while, to pre-
vent damage from leaking. Leaking or damaged batteries/rechargeable bat-
teries can cause acid burns upon contact with skin. Thus, you should wear
protective gloves when handling damaged batteries/rechargeable batteries.
Keep them out of reach of children. Do not leave batteries lying around. There
is the risk that the batteries may be swallowed by children or pets.
Make sure that batteries are not short-circuited or thrown into a fire. Do not
attempt to recharge the batteries. There is danger of explosion.
• Open the cover of the battery compartment (C1) at the back of the device.
• Insert two new 1.5V mignon batteries (AA) in the battery compartment (C1) paying attention to
the polarity. The correct polarity is indicated in the battery compartment.
• Close the battery compartment (C1) again.
• Now the watch starts searching for the DCF signal and tries to receive it.
• If the display contrast fades, the battery is low and has to be replaced as described above.
• To ensure a long battery life, only use alkaline types.
The use of a rechargeable battery leads to a reduced operating time, because of
the lower voltage and capacity.
Installation/Setup
• Install the table watch on a horizontal and stable surface.
DCF time synchronisation
• After inserting the batteries the watch automatically starts searching for the DCF signal. This
is indicated by a flashing DCF symbol (A5).
• Normally, the synchronisation process is completed within a few seconds.
• As soon as the DCF signal has been decoded the respective symbol (A5) appears perma-
nently and the current time of day and the date are shown in the display.
• In order to stop the automatic reception, press the DCF symbol button (B3) until the DCF sym-
bol (A5) disappears.
• In normal operation mode the watch attempts a reception every day at 3 a.m. If no signal has
been received the watch attempts to receive the DCF signal every hour. If the reception fails
the DCF symbol (A5) in the display disappears.
• In order to start a manual reception, press the DCF symbol button (B3) until the DCF symbol
(A5) is flashing.
• In the display DST appears for the summer timer display.
If the reception of the DCF signal is disturbed, try to find a new location and/or leave
the clock near a window overnight.
At night the reception is better, so the watch is normally synchronized the next
morning.
Setting the Time Manually
If the DCF signal could not be received the time of the day has to be set manually.
• Press the MODE/SET (B2) button while the normal time is displayed, and keep it pressed until
the hours display blinks.
• Set the hours using the buttons +12/24 (B1) and -°C/°F (B3).
• Press the button MODE/SET (B2) again. The minute display blinks.
• Set the minutes using the buttons +12/24 (B1) and -°C/°F (B3).
• Now set the seconds, the year, the month, the day and the time zone as described above.
• Press the MODE/SET (B2) button again to save these settings.
• The setting of the time zone has only to be adjusted if the time zone differs from the German
time zone. Otherwise let the value of the time zone remain 0.