Operation Manual
CORONA – Radio-controlled wall clock with light
1110
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 problems within a 1,500 km radius
around Frankfurt.
Please take note of the following:
• The recommended distance to any interfering sources like computer monitors or TV sets is at least
1.5 - 2 meters.
• 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 nighttime, the atmospheric interference is usually less severe and reception is possible in
most cases. A single daily reception is adequate to keep the accuracy deviation under 1 second.
6.1.2 WAVE button
• You can start the initialization manually.
• Press and hold the WAVE button for 3 seconds.
• The pointers move to 12 h and the clock will scan the DCF frequency signal again.
6.1.3 SET button - Manual setting of the clock
• If the clock cannot detect the DCF-signal (for example due to disturbances, transmitting distance,
etc.), the time can be set manually. The clock will then work as a normal quartz clock.
• Press and hold the SET button until the desired time is indicated.
• Press the SET button briefly the pointer moves minute by minute.
• The second hand stops.
• After the time is set, the second hand is moving forward again.
• The manually set time will be overwritten by the DCF time when the signal is received successfully.
6.2 Backlight
• Insert three new batteries 1,5 V AA into the battery compartment for the backlight. Make sure the
polarity is correct.
• Move the switch to position ON to activate the backlight.
• Move the switch to position OFF to deactivate the backlight.
• Move the switch to position AUTO and the backlight turns on automatically as soon as the light
sensor registers darkness.
• Alternatively, you can operate the backlight with a suitable power supply.
7. Care and maintenance
•
Clean the instrument with a soft damp cloth. Do not use solvents or scouring agents.
•
Remove the batteries if you do not use the device for a long period of time.
•
Keep the device in a dry place.
7.1 Battery replacement
• Change the batteries when the functions of the instrument become weak.
• Insert a new battery 1,5 V AA into the battery compartment for the movement. Make sure the
polarity is correct.
• Insert three new batteries 1,5 V AA into the battery compartment for the backlight. Make sure the
polarity is correct.
CORONA – Radio-controlled wall clock with light
Caution!
Risk of injury:
•
Keep this instrument and the batteries out of the reach of children.
•
Batteries must not be thrown into a fire, short-circuited, taken apart or recharged. Risk of explo-
sion!
•
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, nor bat-
teries of different types.
•
Wear chemical-resistant protective gloves and safety glasses when handling leaking batteries.
Important information on product safety!
•
Do not place your product near extreme temperatures, vibrations or shocks.
•
Protect it from moisture.
5. Elements
A. Buttons (Fig. 2)
A 1: SET button
A 2: WAVE button
A 3: RESET button
A 4: AUTO/OFF/ON switch
B. Housing (Fig. 2)
B 1: Wall mounting hole
B 2: Battery compartment for the movement
B 3: Battery compartment for the light
B 4: Power adapter
6. Getting started
6.1 Clock
•
Insert a new battery 1,5 V AA into the battery compartment for the movement. Make sure the polarity
is correct.
•
Remove the protective foil.
•
The device is ready for use.
6.1.1 Radio-controlled time reception
• After the initial setup, the pointers show 12 o’clock and the clock is trying to receive the radio sig-
nal for 3 - 8 minutes. When the time code is received, the radio-controlled time will be shown.
• The radio-controlled clock receives daily at 2:00 and at 5.00 o'clock in the morning and at 14.00 and
17.00 o'clock in the afternoon and at 23.00 o'clock at night the signal.
Note for radio-controlled time DCF:
The time base for the radio-controlled time is a caesium atomic clock operated by the Physikalisch Tech-
nische Bundesanstalt Braunschweig. It has a time deviation of less than one second in one million 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. Your radio-controlled clock receives this
signal and converts it to show the precise time.
TFA_No. 60.3519 Anleitung_12_14 22.12.2014 08:58 Uhr Seite 6