Techno line WT 87 User Manual
MEMO ALARM CLOCK
INTRODUCTION
Congratulations on purchasing this state-of-the-art Alarm clock with radio controlled time. The
operation of this product is simple and straightforward and by reading this manual, users will
receive the optimum benefits of all its features.
ALM1/HOUR key
ALM2/MIN key
Operating Manual
SNOOZE key
MEMO key
MODE key
Battery
compartment
FEATURES
DCF-77 Radio controlled clock with manual setting options
24 hour time display
Calendar display
2 independent alarm settings
Memory alarm
Alarm snooze function
Indoor temperature display in degree Celsius
Back-light
SETTING UP
1. First, slide to open the battery cover at the back of the alarm clock as indicated above.
2. Checking the correct polarization, insert 1 x AA, IEC LR6, 1.5V battery into the battery
compartment and replace the cover.
3. When the battery is inserted, all the segments of the LCD will light up briefly and a “beep”
sound will be heard before entering the radio controlled time reception mode. Within 30
seconds, the ‘DCF-77 Tower’ icon will appear and start flashing. Your alarm clock is now
operational and it automatically starts scanning for the radio controlled time signal. This will
takes about 3 to 5 minutes. When the time signal is being received, both the time and ‘DCF77 Tower’ icon will be displayed on the alarm clock.
4. If reception is not successful within approximately 10 minutes, either manually set the time or
wait for the clock to receive DCF time. Usually, the clock will automatically attempt each full
hour to receive the DCF time. When this is successful, the received DCF time will override
the manually set time. The date is also updated with the received time (Please refer also to
notes on “Radio controlled time” and “Manual time setting”).
LCD SCREEN
The Memo Alarm clock can toggle and display information of time, indoor temperature, seconds
and date when pressing the MODE key.
Time
DCF-77 Tower Icon
Indoor Temperature
Display
Seconds Display
FUNCTION KEYS
The alarm clock has five easy-to-use function keys:
MODE key
To toggle between 3 display modes:
Indoor temperature;
Seconds;
Calendar: weekday, date and month (only displayed when DCF reception is successful)
To enter the manual time setting mode when pressed and hold for about 2 seconds
To exit the memory alarm mode
ALM1/HOUR key
To enter the Alarm1 setting mode if pressed and held for about 2 seconds
To set the hour in manual time setting and alarm setting modes
To activate/deactivate Alarm 1
To stop the alarm
To de-activate the snooze during snooze time
Calendar Display
ALM2/MIN key
To enter the Alarm 2 setting mode if pressed and held for about 2 seconds
To set the minutes in manual time setting and alarm setting modes
To activate/deactivate Alarm 2
To stop the alarm
To de-activate the snooze during snooze time
MEMO key
To display the current Alarm 1 time and the previous three alarm time settings
SNOOZE key
To activate/de-activate the snooze function
To display Alarm 2 time when press and hold the key for about 2 seconds
To exit the manual time setting mode
To exit the alarm setting mode
To exit the memory alarm mode
RADIO CONTROLLED TIME
The time base for the radio-controlled time is a Cesium Atomic Clock operated by the
Physikalisch Technische Bundesanstalt Braunschweig which has a time deviation of less than
one second in every 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. The alarm clock receives this
signal and converts it to show the precise time and so when within this range the received time is
completely accurate.
CHECKING FOR DCF-77 RECEPTION
The alarm clock will automatically start scanning for the DCF-77 frequency signal after the
battery is inserted. In normal surroundings (for example away from interfering sources such as
TV sets), it takes between 3 to 5 minutes to receive the signal. If after 10 minutes of inserting the
battery into the alarm clock and the DCF-77 signal is not received, then check the following list
before manually setting the time (see Manual time setting below):
1. The distance of the alarm clock should be at least 1.5 - 2.0 meters away from interfering
sources such as computer monitors or TV sets.
2. Avoid placing the alarm clock onto or in the immediate proximity of metal doors, window
frames or structures.
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