C&E (L x W x H) 43 x 153 x 106 mm PCR 156 8935c31 データシート

The purpose of the clock is to decode the DCF radio signal of the caesium atomic clock in Braunschweig 
(Germany), to display the time, date, an additional time display and the ambient temperature as well as to 
provide an alarm function.
Moreover, the clock time can be projected onto a nearby surface (wall or ceiling).
The device may be used only indoors. Contact with moisture, for example in bathrooms, must be avoided.
The clock is intended only for operation on a battery and via the provided power cord. 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 hazards 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.

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•   For safety reasons, any unauthorised conversion and/or modifi cation to the product is not permitted.
•   Connect the power unit only to a normal wall socket (230 V/50 Hz) of the public mains.
•   In order to disconnect the clock completely from the mains, the power cord must be unplugged from the 

mains socket.

•   Never replace a damaged power cable. If the connecting cable is damaged, the power cable is unusable 

and must be disposed of. Do not repair it.

•   Do not expose the product to high temperatures, humidity, dripping or sprayed water, strong vibrations or 

heavy mechanical loads.

•   Never position containers with liquids, such as glasses, buckets, vases or plants, in the direct vicinity of the 

product. Liquids may seep into the casing and thus impair the electrical safety of the device. Furthermore, 
there is a signifi cant risk of fi re or a lethal electric shock! In such an event, isolate the mains socket to which 
the product is connected (e.g. switch off the automatic fuse) and unplug the power pack from the mains 
socket. Do not use the product afterwards. Take it to a specialized workshop.

•   Check the device for damage frequently. If the mains cable or the clock is damaged, do not touch it. First, 

switch off the power at the mains socket (e.g. with the corresponding circuit breaker), and then carefully 
unplug the power supply unit from the mains socket. Do not use the product afterwards, but take it to a 
specialist workshop.

•   Devices that operate on the mains voltage must be kept out of the reach of children. For this reason, be 

particularly cautious when using the device in the presence of children. There is a life-threatening electric 
shock hazard.

•   Condensation may form when the product is brought from a cold room into a warm one. Therefore, wait 

until it has reached room temperature before using it.

•   Do not leave packaging materials unattended. It may become a dangerous plaything for children.
•   Also observe any further safety instructions in the individual sections of this operating guide.
•   If you have any doubts about the correct operation, or the safety of the product, please consult a specialist.

•  Open the battery compartment lid on the bottom of the device.
•  Insert two new 1.5V micro-cells (AAA) in the battery compartment, paying attention to the polarity 

markings. 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.
•   When the display contrast fades or when the display light no longer fl ashes, the batteries are fl at and need 

to be replaced as described above.

•   To ensure a long battery life, use only alkaline types.

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    Rechargeable batteries may be used, but due to the lower voltage output (rechargeable battery 

= 1.2V, standard battery = 1.5V) and the lower capacity, the service life is shorter.

The power cable is used to supply power to the projection display. This does indeed also function without 
the power cable being connected, but only for a few seconds. With long-term projection, the batteries would 
otherwise be depleted too quickly. With the power cable connected, it is also possible to project constantly.
•   Connect the low-voltage plug of the power supply to the connection DC 3V at the foot of the clock.
•   Plug the power supply unit into a wall socket.

Immediately after the batteries are inserted, the device makes the fi rst attempt to receive the DCF signal. 
After a successful DCF reception, the clock is automatically set to the current time.

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    The recognition and interpretation of the DCF signal can take 3-5 minutes. Do not move the 

clock, during this time. Do not press any buttons or switches!

 

 Bad reception can occur, for example, by metallised insulated glass, reinforced concrete build-
ings, coated special wallpapers, proximity to electronic devices, or installation in cellars.

 

 If after 10 minutes the clock has not set itself to the current time, change the location of the radio 
clock and press the °C/°F / WAVE button for 3 seconds.

 

 This will start a new reception attempt.

The reception attempt for the daily automatic synchronisation with the

1500 km

2000 km

 

DCF time is done several times a day. One successful reception per 
day is suffi cient to keep the deviation to less than one second.
The DCF signal is encoded and transmitted via a DCF transmitter in 
Mainfl ingen (near Frankfurt am Main). Its range is up to 1,500 km and, 
under ideal reception conditions, even up to 2,000 km.
Among other things, the DCF signal includes the precise time (theore-
tical deviation of 1 second in a million years!) and the date.
Naturally, this also eliminates the hassle of manually setting summer 
and winter time.

•  Install the clock on a level, fl at and stable surface.
•   Protect valuable furniture surfaces by using an appropriate underlay; otherwise, it may cause scratches.

•   After the batteries have been inserted, the clock searches automatically for the DCF signal. This is indi-

cated by the fl ashing DCF symbol in the upper right of the display.

•  Normally, the synchronisation process is completed within a few minutes.
•   As soon as the DCF signal is decoded, the DCF tower icon will appear continuously and the current time 

and date are shown in the display.

•   In normal operation, the clock makes a reception attempt every hour. If the signal is not received, the DCF 

icon disappears.

•  To start a manual reception attempt, press the button °C/°F / WAVE for 3 seconds.

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    If there is interference with the reception of the DCF signal, try to fi nd a new location and/or leave 

the clock near a window overnight.

 

 At night the reception is better, so the clock is normally synchronized the next morning.

 

 The “S” indicator under the DCF symbol in the display is the symbol indicating summertime.

If the DCF signal cannot be received (DCF symbol has disappeared), the time must be set manually.

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    If no keystroke is performed for more than 30 seconds while setting the time, the clock exits the 

manual setting mode and returns to the previous screen.

•   Press and hold the MODE button for 3 seconds. The year indicator blinks.
•  Set the year using the ▼/▲ buttons.
•  Press the MODE button again. The month display blinks.
•  Set the month using the ▼/▲ buttons.
•   Press the MODE button again and now set the date, the hours and the minutes as described above.
•  Press the MODE button again to save the setting.