La Crosse Technology WT-8112U User manual

LCD1

display

LCD2

display

Solar

panel

Battery

cover

Wall Mount

Location

Foldable

stands

SOLAR WALL CLOCK

INSTRUCTION MANUAL

FEATURES:

SOLAR WALL CLOCK:

•

DCF-77 Radio controlled time with manual time setting

•

Time display: hour, minute, second

•

12/24h time format display

•

Alarm setting with snooze function

•

Calendar display

•

Weekday display (4 languages to choose from: English,

Spanish, French, German)

•

Time zone setting

•

Solar mode setting

•

Indoor temperature display in ºC/ ºF selectable

•

Indoor humidity display in RH%

•

Primary Alkaline battery or rechargeable Alkaline battery

selection

Function keys

•

Low battery indicator

•

Wall mount or freestanding

TO INSTALL / REPLACE BATTERY

The solar wall clock can use either the included 1 x AA Alkaline

rechargeable battery (charged by solar panel) or 1 x AA

Alkaline battery (non-rechargeable; not included).

Important: the battery type selection (rechargeable or

non-rechargeable) must be made BEFORE inserting

the battery into the compartment otherwise it may

cause damage to the clock!

INITIAL SETUP

The included alkaline rechargeable battery should provide you

with many years of service. If your battery needs to be

replaced, we suggest you use a fully charged AA Alkaline.

Rechargeable batteries should be fully charged before inserting

into clock. Alkaline rechargeable batteries are

recommended.

If you choose to use a non-rechargeable battery, the battery

switch MUST be moved to the BATTERY position (not the

SOLAR position). In this position, the solar cells do not charge

the battery.

REGARDLESS OF THE TYPE OF BATTERY INSTALLED,

THE BATTERY SWITCH MUST BE IN THE BATTERY

POSITION WHEN THE BATTERY IS INSERTED.

If a rechargeable battery is used, the battery switch should

be moved to the SOLAR position AFTER it is has been

inserted.

To use the included rechargeable Alkaline battery (charged

by solar panel):

1. Remove the insulation tape.

2. Replace battery cover

3. Remove the black protective foil on the solar panel.

DO NOT SET THE CLOCK.

To use a non-rechargeable alkaline battery:

1. Remove the included rechargeable AA battery from the

compartment.

2. Use the switch to select the alkaline battery (see below).

3. Insert 1 x AA, IEC LCR6, 1.5V Alkaline battery into the

compartment, observing the correct polarity (see marking

inside battery compartment.

4. Replace battery cover

DO NOT SET THE CLOCK.

Note: For best performance, batteries should be replaced at

least once every 2 years to maintain the best running accuracy.

Ensure that the batteries used are new and the correct size.

Please help in the preservation of the

environment and return used batteries to an

authorized depot.

Use switch to

select which type

of battery will be

used before

inserting the

battery into the

compartment

Battery

compartment

cover

Rechargeable Alkaline

battery switch position

Primary Alkaline battery

switch position

SETUP AFTER CHANGING/REPLACING THE

BATTERY

1. After powering up the solar clock, all LCD segments will

light up briefly and it will show the time (00:00), indoor

temperature, date, and indoor humidity.

2. Next, the DCF time code reception will automatically

start. This takes typically between 3 - 5 minutes in good

conditions. If after 10 minutes the DCF time has not been

received, use the “SET” key to enter the set-up mode to

manually set the Time, Time Zone and Date (see manual

settings below). The clock will continue to search for DCF

at 3am and 5am. When the clock has successfully

connected with DCF signal, it will override the manually

set time and date.

Note: When changing the battery:

1. Be careful that it does not spring free from the

contacts.

Always wait at least 1 minute after removing

battery before re-inserting, otherwise start up

problems may occur.

RADIO CONTROLLED TIME

The time base for the radio controlled time is a Cesium clock

operated by the Physikalisch Technische Bundesanstalt

Braunschweig, which 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 Weather Station receives this signal

and converts it to show the precise time in summer or

wintertime.

The quality of the reception depends greatly on the geographic

location. In normal cases, there should be no reception

problems within a 1500km radius of Frankfurt.

Once the indoor temperature is displayed on the solar wall

clock, the DCF tower icon in the clock display will start flashing

in the LCD. This indicates that the clock has detected that there

is a radio signal present and is trying to receive it. When the

time code is received, the DCF tower becomes permanently lit

and the time will be displayed.

Daily DCF reception is done at 03:00. If the reception is not

successful at 03:00, then the other reception occurs at 05:00. If

the reception at 05:00 is still not successful, then the next try

will take place the next day.

If the tower icon flashes, but does not set the time or the DCF

tower does not appear at all, then please take note of the

following:

•

Recommended distance to any interfering sources like

computer monitors or TV sets is a minimum of 1.5 - 2

metres.

•

Within ferro-concrete rooms (basements,

superstructures), the received signal is naturally

weakened. In extreme cases, please place the unit close

to a window and/ or point its front or back towards the

Frankfurt transmitter.

•

During nighttime, the atmospheric disturbances are

usually less severe and reception is possible in most

cases. A single daily reception is adequate to keep the

accuracy deviation below 1 second.

FUNCTION KEYS

The radio-controlled clock has four easy to use keys:

SET key : To enter into the set mode for the following

functions: time zone, language, hour, minute,

year, month, date, weekday, 12/24h time format

display, ºC/ ºF temperature unit, and solar mode

+key : To change any values in manual set mode

ALM key : To enter into the alarm set mode

To activate/deactivate the alarm

SNZ key : To activate the snooze function during alarm

To exit manual setting modes

Weekday

Indoor

temperature

Low battery

icon

LCD SCREEN DESCRIPTIONS

The radio-controlled clock's LCD is divided into 2 sections and

once the batteries are inserted, all the segments will light up

briefly before displaying the information for time, date, indoor

temperature and indoor humidity.

MANUAL SETTINGS

Note:

If the solar wall clock has already successfully received the

DCF time signal and displays the correct time and date,

then the Manual settings can be skipped.

After completion of the above described procedures in

“Setting-up” the manual setting modes can be entered by

pressing the SET key. The following settings can now be

programmed:

•

Time zone setting

•

Language display setting

•

Manual time setting

•

Year setting

•

Month setting

•

Date setting

•

Weekday setting

•

12/24h time format display

•

ºC/ºF temperature setting

•

Solar mode setting

Date

Indoor

humidity

display

DCF

time

Radio reception icon

Alarm icon

TIME ZONE SETTING

The time zone can be set between the 0 to -12 hour and then

runs from 12 back to 0 in consecutive 1-hour interval. To do

this:

1. After pressing the SET-Button the current time zone

value starts flashing.

2. Use the + key to set the time zone. The range runs from

0 to -12 and then runs from 12 back to 0 in consecutive

1-hour interval.

Press and release the SET key to enter the “Language

Setting”.

LANGUAGE SETTING

The weekdays can be displayed in LCD1 with the pre-set

languages: English (US), Spanish (E), French (F), and German

(d). (default language: German):

1. Set the desired language for the weekday display using

the + key.

2. Press and release the SET key to enter the mode

“Manual Time Setting”.

MANUAL TIME SETTING

In case the solar wall clock is not able to detect the DCF-signal

(disturbances, transmitting distance, etc.), the time can be

manually set. The clock will then work as a normal Quartz

clock.

1. The hour digits will start flashing on LCD1.

2. Set the desired hours by pressing and releasing the +

key followed by pressing the SET key.

3. Now the minute digits will start flashing.

4. Set the desired minutes by pressing and releasing the +

key. If the +key is held, the units will increase by 5.

5. Press and release the SET key to move to the “Year

Setting”.

YEAR SETTING

The year can be selected sequentially from 2001 to 2029 and

will then start over again (default setting 2006). The year will

only appear in the manual setting mode.

1. The year digits will start flashing (only last 2 digits) on

LCD2. Select the desired year by use of the +key.

2. Press and release the SET key to switch to the “Month

Setting”.

MONTH SETTING

1. The month digit on LCD2 will start flashing (Default

setting 1). Set the desired month by use of the +key.

2. Press and release the SET key to move to the mode

“Date Setting”.

DATE SETTING

1. The digits for the date will start flashing on LCD2 (Default

setting 1). Set the desired date by use of the +key.

Note: The date can only be set in conjunction with the

selected month. For example, it is not possible to set the

date 30 if the month of February is selected.

2. Press and release the SET key to move to “Weekday

Setting”.

WEEKDAY SETTING

1. The weekday symbols will be displayed on LCD2 in the

pre-set language and flashing. Set the desired weekday

by use of the + key.

Press and release the SET key to enter the mode

“12/24h Time Format Setting”.

12/24H TIME FORMAT SETTING

The time format can be display in 12h or 24h (Default setting

“24h”).

1. The digits “12” or “24” will start flashing on LCD1. By

use of the +key select 12h or 24h time format display.

Press and release the SET key to enter the mode “ºC or

ºF Temperature Setting”.

°C OR °F TEMPERATURE

The temperature setting can be set to either to ºC or ºF (Default

setting °C).

1. The characters “°C” or “°F” will start flashing on LCD1.

By use of the +key select “°F” for temperature display in

degrees Fahrenheit or “°C” for degrees Celsius.

2. Press and release the SET key to enter the mode “Solar

Mode Setting”.

SOLAR MODE

The Solar Mode is used for saving the power consumption of

the rechargeable battery (Default setting ON):

1. The characters “ON” or “OFF” will start flashing on

LCD1. By use of the +key select “ON” or “OFF” to set

the solar mode.

2. Press and release the SET key to exit the setting mode

and switch back to the normal display mode.

If the solar mode setting is ON:

•

LCD will automatically turn OFF if the environment is

too dark

•

LCD will automatically turn ON if the environment is

bright enough; the surrounding environment

brightness is checked every 5 seconds (brightness

detection is not checked during DCF reception)

•

No information will be displayed when the LCD is

OFF, but all the settings and operations will remain,

except for the temperature and humidity

measurements.

•

If the user wants to check data while the display is

automatically turned off, because the environment is

not bright enough, take the clock into a brighter

environment. The display will turn on again.

Important note:

If the environment is dark for 3 consecutive days:

•

The brightness is checked every 30 seconds; it will

resume to be check every 5 seconds once it has

detected that the brightness level is high enough

•

There is no DCF time reception until the level of

brightness is high enough; the DCF reception will restart

once the brightness level is high enough.

If the solar mode setting is OFF:

•

LCD will remain ON constantly.

EXIT THE MANUAL SETTING MODES

•

To return to the normal display mode from anywhere in

manual setting mode simply press the SNZ key anytime.

•

If no keys are pressed for at least 15 seconds in setting

mode, the radio-controlled solar clock will automatically

switch back to normal display mode.

ALARM

To enter into the alarm setting mode:

1. Hold the ALM key for 4 seconds. The hour digits start

flashing.

2. Press and release the +key to set the hour.

3. Press and release the ALM key to set the minutes. The

minute digits start flashing.

4. Press and release the + key to set the minutes. If the +

key is held, the unit will increase by 5

5. Press and release again the ALM key to exit the Alarm

setting mode or wait for 15 seconds automatic timeout.

TO DEACTIVATE THE ALARM:

The alarm will be automatically ON when the alarm time is set.

To deactivate the alarm (OFF), press and release once the

Alarm icon (((

•

))) (ON)

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