La Crosse WT521IT User manual

WT521IT
915 MHz
Projection Alarm Clock
Instruction Manual

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PROJECTION ALARM CLOCK
Model WT521IT
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this compact 915 MHz Projection Alarm Clock which displays time,
indoor temperature and outdoor temperature readings. With only four keys, easy to use, this product
is ideal for use in the home or office.
« Instant Transmission+» is the up and coming state-of-the-art new wireless
transmission technology, exclusively designed and developed by LA CROSSE
TECHNOLOGY.
“IT +” offers you an immediate update of all your outdoor data measured from
the transmitters: follow your climatic variations in real-time!

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PROJECTION ALARM CLOCK
FEATURES
Manual setting option
12/24 hours time display (hour, minutes, seconds)
Time projection (hour and minute)
Projection with adjustable brightness and projection orientation possible
Calendar display
Alarm setting with snooze function
Time zone setting ±12hours
Temperature display in ºC or ºF
Indoor and outdoor temperature display
Battery
compartment
Stand
A
daptor socket
Function
keys
LCD
Display

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E.L. back-light
Wireless transmission at 915 MHz
Signal reception intervals at 4 seconds
Low battery indicator
TEMPERATURE TRANSMITTER:
Remote transmission of outdoor temperature to weather station
by 915 MHz signal
Wall mounting case
Mount in a sheltered place. Avoid direct rain and sunshine

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TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE
TRANSMITTER
The Temperature Transmitter uses 2 x AA, IEC, LR6, 1.5V batteries. To install and replace
the batteries, please follow the steps below:
1. Remove the cover.
2. Insert the batteries, observing the correct polarity (see marking).
3. Replace the battery cover on the unit.
Note:
In the event of changing batteries in any of the units, all units need to be
reset by following the setting up procedures. This is because a random
security code is assigned by the transmitter at start-up and this code must
be received and stored by the Projection alarm clock in the first three
minutes of power being supplied to it.
TO INSTALL AND REPLACE BATTERIES INTO THE PROJECTION CLOCK
The Projection Clock uses 2 x AA, IEC LR6, 1.5V batteries. To install and replace the
batteries, please follow the steps below:
1. Insert finger or other solid object in the space at
the bottom centre of the battery compartment and
lift up to remove the cover.
2. Insert batteries observing the correct polarity (see
marking).

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3. Replace compartment cover.
In addition or instead of inserting batteries, the AC adaptor can be used:
1. Connect the power adaptor to a wall socket
2. Insert the adaptor into the
jack at the bottom of the
clock
Important!
Use only the adaptor provided with
the projection clock and make sure
that your household voltage is
appropriate to the working voltage
of the transformer. Otherwise your
Projection clock may be damaged.
POWER SUPPLIED BY BATTERIES AND AC/DC ADAPTOR
If the Projection clock is first powered by batteries and the power adaptor is subsequently
used for extended period of time, the main power source of the Projection clock will switch to
AC/DC power. The batteries will then act as a backup power source in case of power failure.

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SETTING UP
The Projection clock can be battery operated or powered by the provided AC/DC
adaptor.
1. First, insert 2 x AA, IEC LR6, 1.5V batteries into the transmitter.
2. Within 1 minute of activating the remote transmitter, insert 2 x AA, IEC LR6, 1.5V
batteries into the projection clock (or use the A/C adaptor to power up). Once the
batteries are in place, all segments of the LCD will light up briefly. Then the indoor
temperature, the time as 12:00, will be displayed. If the indoor temperature is not
displayed after a few seconds, remove the batteries and wait for at least 30 seconds
before reinserting them. Once the indoor data is displayed proceed to step 3.
3. After a few seconds of inserting the batteries into the transmitter, the projection clock
will start receiving data from the transmitter. The remote temperature will then be
displayed on the clock. If this does not happen after 2 minutes, the batteries will need
to be removed from both units and reset from step 1.
4. In order to ensure sufficient 915 MHz transmission however, the distance between the
Projection clock and the transmitter should not be more than 100 metres (330 feet)
(see notes on “Positioning” and “915 MHz Reception”).
Note:
Should the total time of inserting the batteries into the transmitter take longer than 1-1/2
minutes from the time of inserting the batteries into the projection clock then temperature

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reception problems may occur. If the temperature is not being received, then see "915MHZ
RECEPTION", before resetting the units.
In the event of changing batteries to the transmitter, the projection clock needs to be reset.
(See RESETTING THE PROJECTION CLOCK)
5. Press the SET key to manually enter a time initially.
RESETTING THE PROJECTION CLOCK
To reset the Projection clock to the factory default setting or in case of a malfunction or
changing batteries to transmitter, please remove all batteries from the unit and unplug the
AC/DC adaptor from any power source. With power disconnected, press any button 20
times. Wait at least for 3 minutes before powering up the Projection clock again.
BATTERY CHANGE:
It is recommended to replace the batteries in all units regularly to ensure optimum accuracy
of these units (Battery life See Specifications below).
Please participate in the preservation of the environment. Return used
batteries to an authorized depot.

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PROJECTION OF TIME / OUTDOOR TEMPERATURE
Note:
The projection is a red light, not harmful under normal usage, yet care should be taken to
avoid looking directly into the light.
1. When plugged into an AC outlet, the projection alarm can continuously project the time
and the outdoor temperature
2. When operating on batteries alone, the projection alarm will only project when the
SNOOZE button is pressed or the alarm is sounding.
3. The projection will auto-focus for display from about 1.7 to 2.0 metres (5.5 to 6.5 feet)
away. A dark surrounding will be necessary to clearly see the projection.
The direction of the display can also be rotated 360 in 90 increments by pressing the
Projection Direction button. The projector case can be rotated 180 to further help orient
the projected display.
Note:
If the Projection clock is powered through the adaptor, the projection will be constantly ON at
the highest brightness level unless the brightness level is manually changed to a lower
brightness level afterwards. And the brightness of the projection can be change accordingly
to enhance the clarity of the projected time by pressing the key. Press and release the
key slowly to also turn off.

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If the Projection clock is battery operated, the projection will be ON at the highest brightness
level only when the SNOOZE key is pressed. The intensity of the brightness level of the
projection cannot be changed. If the SNOOZE is released, the projection will be turned OFF.
TOGGLE BETWEEN THE DISPLAY OF TEMPERATURES, SECONDS,
PRESET ALARM TIME AND CALENDAR
With a short press of the MODE/MIN key, you will toggle between the following displays:
1. Indoor and outdoor temperature
2. Seconds
3. Preset alarm time
4. Day and Month

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FUNCTION KEYS
There are 4 function keys located on the front of the projection alarm and one on the top.
The function keys are: AL/HOUR, MODE/MIN, Projection Direction, Brightness, and
SNOOZE.
SNOOZE key:
Activate snooze function
Activate the projection brightness at the highest level when battery operated or
projection is turned off
Exit the setting modes
E.L.Back-light-On
AL/HR key:
Enter alarm setting mode
Activate or deactivate alarm
Stop alarm and snooze function
AL / HOUR
key MODE/ MIN
key
Projection Direction key
SNOOZE
key
Brightness key

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Set the hours, day or month (depending on 12/24 hour time format)
E.L.Back-light-On
MODE/MIN key:
Enter time zone, manual time, year, day, month, 12/24 hour time display, ºC / ºF
temperature format, DST ON/OFF setting modes
Set the minutes, year, day or month (depending on 12/24 hour time format), 12/24 hour
time format, ºC / ºF temperature format, DST ON/OFF
Toggle between temperatures, seconds, alarm time, and date display
Stop alarm and snooze function
E.L.Back-light-On
Brightness key
Set the brightness level of the projection (in A/C power mode):4 levels: High, Medium,
Low, OFF
E.L.Back-light On
Projection Direction key
Press to rotate the time/ outdoor temperature projection image in 90 increments
Press to activate the EL back-light

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MANUAL SETTINGS:
The following manual settings can be changed when pressing the MODE/MIN key for:
Time zone setting
Manual time setting
Calendar setting
12/24-Hour setting
°C/°F setting
DST ON/OFF (daylight saving time)
TIME ZONE SETTING
The time zone default of the Projection clock is “-5h”. To set a different time zone:
1. Press and hold the MODE/MIN key for about 3 seconds. The current time zone value
at the bottom of the LCD display starts flashing.
2. Press and release MODE/MIN key to adjust the time zone. The range runs from 0h to
12h, then –12h to 0h, in consecutive 1-hour intervals.
3. Confirm with the SNOOZE key and enter the Manual time setting.
Flashing

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MANUAL TIME SETTING
The time can be manually set. The clock works as a normal Quartz clock.
1. The hour and the minute digits will start flashing.
2. Use the AL/HOUR key to set the hour; MODE/MIN key to set the minute.
3. Confirm with the SNOOZE key and enter the Calendar setting.
CALENDAR SETTING
The date default of the Projection clock is 1. 1. in the year 2006. The date can be set
manually.
Minutes flashing
Hour flashing

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1. The year starts flashing.
2. Use the MODE/MIN key to set the year (between year 2001 to 2029).
3. Press the SNOOZE key to confirm and to enter the month and day setting. The month
and day digits will start flashing.
4. Use the AL/HOUR key to set the day (or month) and MODE/MIN key to set the month
(or day).
5. Confirm with the SNOOZE key and enter the 12/24 hour time display setting.
Note:
If 12hr time format is selected, month and date will be displayed.
If 24hr time format is selected, date and month will be displayed.
Flashing Flashing Flashing

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12/24 HOUR TIME DISPLAY SETTING
1. “12h” or “24h” flashes in the LCD.
2. Press the MODE/MIN key to select the “12h” or “24h” display mode.
3. Confirm with the SNOOZE key and enter the °C/°F temperature setting.
°C/°F TEMPERATURE SETTING:
The default temperature reading is set to °F (degree Fahrenheit). To select °C (degree
Celsius):
1. The “°F” will be flashing.
Flashing
Flashing

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2. Use the MODE/MIN key to toggle between “°C” and “°F”.
3. Confirm with the SNOOZE key and enter the DST ON/OFF setting.
DST ON/OFF SETTING (DAYLIGHT SAVING TIME):
Note: This facility is not available in Australia and New Zealand.
ALARM
SETTING THE ALARM
1. Press and hold “AL/HOUR” button for about three seconds until the alarm time is
flashing.
2. Press and release “AL/HOUR” to advance the hour, and “MODE/MIN” to advance the
minute.
3. Press the SNOOZE key to confirm. The alarm is now set and activated.
Flashing
A
larm-ON icon

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ACTIVATING / DEACTIVATING THE ALARM
1. After entering the alarm setting mode, the alarm is activated.
2. To toggle between activating and deactivating the alarm, press the “AL/HOUR” button
briefly. Alarm-on icon, “(((•)))” will be displayed next to the time display when the alarm
is activated.
TURNING ALARM OFF (WHILE SOUNDING)
1. While the alarm is sounding, press and release the SNOOZE bar to disable the alarm
for 6 minutes. (After the SNOOZE bar is pressed, the alarm icon will keep flashing.
After 6 minutes, the alarm will sound again.)
2. To disable the alarm, press and release the AL/HOUR or MODE/MIN button.
LOW BATTERY INDICATOR
Low battery indicator is displayed on the LCD when the batteries require changing.
Low battery indicator for
transmitte
r
Low battery indicator for
projection clock

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TEMPERATURE TRANSMITTER
The outdoor temperature is measured and transmitted every 4 seconds.
The range of the Temperature transmitter may be affected by the temperature. At cold
temperatures the transmitting distance may be decreased. Please bear this in mind when
placing the transmitter.
915MHz RECEPTION
If the outdoor temperature data is not being received within three minutes after setting up
(or outdoor display always show “- -. -” in the outdoor section of the Projection alarm clock
during normal operation), please check the following points:
1. The distance of the Projection alarm clock or transmitter should be at least 2 metres (6
feet) away from any interfering sources such as computer monitors or TV sets.
2. Avoid placing the transmitter onto or in the immediate proximity of metal window
frames.
3. Using other electrical products such as headphones or speakers operating on the
915MHz-signal frequency may prevent correct signal transmission or reception.
Neighbours using electrical devices operating on the 915MHz-signal frequency can
also cause interferences.
Note:
When the 915MHz signal is received correctly, do not re-open the battery cover of either the
transmitter or Projection alarm clock, as the batteries may spring free from the contacts and

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force a false reset. Should this happen accidentally then reset all units (see “Setting up”
above) otherwise transmission problems may occur.
The transmission range is around 100 metres (330 feet) from the Temperature transmitter to
the projection alarm clock (in open space). However, this depends on the surrounding
environment and interference levels. If no reception is possible despite the observation of
these factors, all system units have to be reset (see “Setting up” above).
POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER
The transmitter is supplied with a holder that may be attached to a wall
with the two screws supplied. The transmitter can also be positioned on a
flat surface by securing the stand to the bottom of the transmitter.