La Crosse Technology Wireless Weather Station User manual

WIRELESS 433 MHz
WEATHER STATION
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this fancy Weather
Station with wireless 433MHz transmission of outdoor
temperature and humidity and display of indoor
temperature and humidity. It is further featuring a DCF-
77 radio controlled clock with date display and two
alarms. With eight easy to use function keys, this
innovative product is ideal for use in the home or office.
FEATURES:
The Weather Station
Function
Keys
LCD
Display
Hanging
Hole
Battery
compartment
cover
Detachable
stand
•DCF-77 Radio controlled time with manual setting
options
•Time reception ON/OFF
•12/24 hour display
•Hour and minute display, seconds indicated by
flashing dot
•Time zone option ±12 hours
•Features 2 alarms with snooze function
•Snooze setting
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•Date and month / weekday and date calendar
display selectable
•Weather forecasting with 3 weather icons and
weather tendency indicator
•Weather forecasting icon sensitivity setting
•Temperature display in degrees Celsius (°C) or
Fahrenheit (°F) selectable
•Indoor and outdoor temperature display with
MIN/MAX recording
•Indoor and outdoor humidity reading displayed as
RH% with MIN/MAX recordings
•All MIN/MAX temperature recordings show date
and time received
•All MIN/MAX recordings can be reset
•Indoor comfort level indicator - happy or sad face
icons
•Can take up to three outdoor transmitters
•LCD contrast setting
•Low battery indicator
•Wall mounting or table standing
•LED backlight
The Outdoor Thermo-Hygro Transmitter
•Remote transmission of outdoor
temperature and humidity to
weather station by 433 MHz
signals
•Shower proof casing
•Wall mounting stand
SETTING UP :
1. First, insert the batteries into the Weather Station
(see “How to install and replace batteries in the
Weather Station”below). Once the batteries are
in place, all segments of the LCD will light up
briefly and a short signal tone will sound. Following
some test data display, the indoor temperature
and humidity, the time as 0:00 the date as 1.1. and
the weather icons sun and clouds will be
displayed. If the indoor temperature and humidity
are not displayed after 30 seconds, remove the
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batteries and wait for at least 10 seconds before
reinserting them. Once the indoor data is
displayed proceed to step 2.
2. Within 3 minutes of activating the Weather station,
place the batteries into the transmitter (see “How
to install and replace batteries in the Thermo-
Hygro outdoor transmitter“ below).
3. After inserting the batteries into the transmitter, the
Weather station will start receiving data from the
transmitter. The outdoor temperature and humidity
should then be displayed on the Weather station. If
this does not happen after 15 minutes, the
batteries will need to be removed from both units
and reset from step 1.
4. The Weather station can take up to 3 remote
transmitters. If you have purchased additional
transmitters, follow step 2 for all extra transmitters.
However, ensure that you leave 10 seconds in
between the reception of the last transmitter and
the set-up of the following transmitter. The
Weather station will number the transmitters in the
order of set-up, i.e. the first transmitter will have
the temperature and humidity displayed with the
number 1 against it and so on.
5. After all the transmitters are set up, there is a
testing period, during which the display switches
quickly between all the received transmitters at
random, according to which random transmission
it receives. Pressing any key will stop this process.
The process also stops automatically if up to 3
transmitters are received or no keys are pressed
for a few minutes.
6. Once the remote temperature and humidity have
been received and displayed on the Weather
station, the DCF-77 time code reception is
automatically started. This takes typically between
3-5 minutes in good conditions. This time period is
an excellent opportunity to locate the transmitter(s)
in suitable location(s) outdoors. In order to ensure
sufficient 433 MHz transmission however, this
should under good conditions be no more than
100 meters from where the Weather station will be
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finally positioned (see notes on “Positioning” and
“433 MHz Reception”).
7. If after 10 minutes, the DCF time has not been
received, use the SET key to manually enter a
time. The clock will automatically attempt to
receive the DCF time at each full hour. When this
is successful, the received 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 Reception” and
“Manual Time Setting”).
HOW TO INSTALL AND REPLACE BATTERIES IN
THE WEATHER STATION
The Weather Station uses 2 x AA, IEC LR6, 1.5V
batteries. When batteries will need to be replaced, the
low battery icon will appear on the LCD. To install and
replace the batteries, please follow the steps below :
1. Lift up the battery
compartment and remove the
cover.
2. Insert batteries observing the
correct polarity (see marking).
3. Replace compartment cover.
HOW TO INSTALL AND REPLACE BATTERIES IN
THE THERMO-HYGRO TRANSMITTER
The Thermo-Hygro transmitter uses 2 x AA, IEC LR6,
1.5V batteries. To install and replace the batteries,
please follow the steps below:
1. Remove the battery cover.
2. Insert the batteries,
observing the correct
polarity (see marking).
3. Replace the battery cover
on the unit.
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Note :
In the event of changing batteries in any of the units, all
units need to be reset by following the setting up
procedures : a random security code is assigned by the
transmitter at start-up and this code must be received
and stored by the Weather Station in the first 3 minutes
of power being supplied to it.
BATTERY CHANGE :
It is recommended to replace the batteries in all units on
an annual basis to ensure optimum accuracy of these
units.
Please participate in the preservation of
the environment. Return used batteries
to an authorised depot.
FUNCTION KEYS :
Weather Station :
The Weather Station has eight easy to use function keys.
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Snooze key

SET key (Setting) :
CH key
AL1
key
SET key
AL2 key
DATE key
OUT
key
IN key
•To enter the set mode for the following functions :
LCD contrast, Time zone, Time Reception
ON/OFF, 12/24 hour display, Manual time, Year,
Date, Snooze time duration, °C/°F, and Weather
forecasting icon sensitivity settings.
Note : The year can be displayed in the set mode (not
displayed in normal mode)
•To stop the alarm
•To switch on the backlight
IN key (Indoor) :
•To toggle between the current / minimum /
maximum indoor temperature and humidity
•To press for over 3 seconds to reset the indoor
maximum and minimum temperature and humidity
records (will reset all records to current level)
Note : The time/date information is only available for
MIN/MAX temperature data, and will be changed to
default time after the reset operation
•To change LCD contrast, time zone, Time
Reception ON/OFF, 12/24 hour display, hour, year,
month, day, snooze time duration, °C/°F and
weather forecasting icon sensitivity in setting modes
Note : In 24hr time display mode, the day is set by using
the IN key. In 12hr time display mode, the month is set
by using the IN key
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•To change alarm hour in alarm setting mode
•To stop the alarm
•To switch on the backlight
OUT key (Outdoor) :
•To toggle between the current / minimum/
maximum outdoor temperature and humidity
•Press for around 3 seconds to reset the outdoor
maximum and minimum temperature and humidity
records (will reset all records to current level of the
relative transmitter being reset- each transmitter’s
data must be reset separately)
Note : The time/date information of MIN/MAX
temperature will be reset to default time as well.
•To change minute, day, month units in setting
modes
Note : In 24hr time display mode, the month is set by
using the OUT key. In 12hr time display mode, the
day is set by using the OUT key
•To change alarm minute in alarm setting mode
•To stop the alarm
•To switch on the backlight
CH key (Channel) :
•To toggle between the Thermo-Hygro outdoor
transmitters 1, 2 and 3 (if more than 1 transmitter
is used)
•To exit manual setting mode and alarm setting
mode
•To stop the alarm
•To switch on the backlight
AL1 key (Alarm 1) :
•To display the time set for Alarm ((1)) and to
simultaneously switch Alarm ((1)) ON/ OFF
•Press for about 3 seconds to enter the Alarm ((1))
setting mode
•To stop the alarm
•To switch on the backlight
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AL2 key (Alarm 2) :
•To display the time set for Alarm ((2)) and to
simultaneously switch Alarm ((2)) ON/ OFF
•Press for about 3 seconds to enter the Alarm ((2))
setting mode
•To stop the alarm
•To switch on the backlight
DATE key :
•To toggle between the two date display modes and
the two alarm times
•To stop the alarm
•To switch on the backlight
SNOOZE key :
•To activate the snooze function for the alarm
•To view alarm time setting in normal operation
mode
•To exit manual setting mode and alarm setting
mode
•To switch on the backlight
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LCD SCREEN AND SETTINGS :
Weather
Forecast icon
Number showing
Transmitter unit
DCF Tower Icon
(for time
reception)
Time
Alarm 1 symbol
Low battery
indicator
Calendar
Weather
Tendency Icon
Comfort Indicator
Icon
Indoor
Temperature
in °C Indoor Relative
Humidity %
Outdoor
Temperature
in °C Outdoor Relative
Humidity %
Outdoor
Reception
Signal
Alarm 2 symbol
For better distinctness, the LCD screen is split into 5
sections displaying the information for time, date,
weather forecast, indoors and outdoors.
Section 1 - TIME
•In normal mode, display of radio controlled time.
•A reception tower symbol in the upper left hand
corner of LCD 1 of the display indicates that the
DCF-77 time signal is scanned for (flashing) or
received (steady).
•In setting mode, display of manual setting values.
Section 2 - CALENDAR, ALARM ((1)) OR ALARM
((2)) TIME
•Display of calendar, Alarm ((1)) time or Alarm ((2))
time. It also shows the Alarm ON/OFF icons ((1))
and ((2))
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•Display of low battery indicator. A small battery
symbol on the upper right side indicates low
running batteries.
•In setting mode, display of a variety of references
and setting values
Section 3 - WEATHER FORECAST AND WEATHER
ICONS
•Display of the weather to be expected in form of
three weather symbols and two weather tendency
indicators in form of an arrow, which change their
appearance depending on the air pressure
development.
Section 4 - INDOOR TEMPERATURE AND HUMIDITY
•In normal mode, on the left, display of the current
indoor temperature.
•In normal mode, on the right, display of the current
indoor relative humidity.
•By pressing the “IN” key, display of the stored
MIN/MAX indoor temperature and humidity with
simultaneous display of a MIN or MAX symbol in
the upper center.
•In normal mode, display of Comfort Indicator.
SECTION 5 - OUTDOOR TEMPERATURE AND
HUMIDITY
•In normal mode, on the left, display of the current
outdoor temperature.
•In normal mode, on the right, display of the current
outdoor relative humidity.
•By pressing the “OUT” key, display of the stored
MIN/MAX outdoor temperature and humidity with
simultaneous display of a MIN or MAX symbol in
the upper center.
•By pressing the “CH” key, display of outdoor
sensors (up to three outdoor transmitters) 1, 2 or 3
in the center will indicate from which sensor the
current reading originates.
•A signal reception symbol in the upper center
indicates that a signal is received from the
transmitter(s).
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DCF-77 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 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 1,500km radius
around Frankfurt.
Once the outdoor temperature and humidity are
displayed on the Weather station after initial set-up, the
DCF tower icon in the time display will start flashing in
the upper left corner. This indicates that the weather
station 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.
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.
MANUAL SETTINGS:
The following manual settings can be changed when
pressing the SET key for :
•LCD contrast setting
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•Time zone setting
•Time reception ON/OFF setting
•12/24-Hour setting
•Manual time setting
•Calendar setting
•Snooze setting
•°C/°F setting
•Weather forecasting icon sensitivity setting
LCD CONTRAST SETTING
LCD (flashing)
The LCD contrast can be set to 8 different levels to suit
the users needs (default LCD contrast setting is LCD 5).
To set the desired contrast level :
Once, press and hold the SET key for about 3 seconds.
The LCD contrast will be flashing.
1. Press the IN key to select the level of contrast
desired.
2. Press the SET key to confirm and enter the “Time
Zone setting” or exit the setting mode by pressing
the CH or SNOOZE key
TIME ZONE SETTING:
Time Zone (flashing)
The time zone default of the Weather Station is 0. To
change to another time zone:
1. Press the SET key after completing the LCD
contrast setting in order to enter the time zone
setting (flashing).
2. Using the IN key, set the time zone. The range
runs from 0 to +12 and then runs from -12 back to
0 in consecutive 1hour intervals.
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3. Press the SET key to confirm and enter the “Time
Reception ON/OFF setting” or exit the setting
mode by pressing the CH or SNOOZE key
TIME RECEPTION ON/OFF SETTING
Digit flashing
In area where reception of the DCF-77 time signal is not
possible, the DCF-77 time reception function can be
turned OFF. The clock will then work as a normal Quartz
clock. (Default setting is ON).
1. The digit “ON” will start flashing on the LCD.
2. Use the IN key to turn OFF the time reception
function.
3. Confirm with the SET key and enter the “12/24-
Hour Display setting” or exit the setting mode by
pressing the CH or SNOOZE key.
Note :
If the Time Reception function is turned OFF
manually, the clock will not attempt any reception of
the DCF time as long as the Time Reception OFF
function is activated. The Time Reception and DCF
icons will not be displayed on the LCD.
12/24 HOUR TIME DISPLAY SETTING
flashing
1. After setting time reception ON/OFF, press the
SET key, “12h” or “24h” flashes in the LCD.
2. Press the IN key to select the “12h” or “24h”
display mode.
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3. Press the SET key again to confirm and to enter
the “Manual Time setting” or exit the setting
mode by pressing the CH or SNOOZE key.
Note :
When 24h mode display is selected, the calendar format
will be date and month display.
When 12h mode display is selected, the calendar format
will be month and date display.
MANUAL TIME SETTING
In case the Weather Station 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.
Hours (flashing)
Minutes (flashing)
To set the time :
1. The hour and minute digits start flashing in the
time display section.
2. Use the IN key to adjust the hours and the OUT
key to adjust the minutes. If you hold the key
while you adjust, the hours move 1 hour and the
minutes move 5 minutes.
3. Confirm with the SET key and enter the “Calendar
Setting” or exit the setting mode by pressing the
CH or SNOOZE key
Note :
The unit will still try to receive the signal at each full hour
despite a manual setting. When the signal is received,
the manually set time will automaticaly be replaced by
the received time. During reception attempts, the DCF
tower icon will flash. If reception has been unsuccessful,
the DCF tower icon will not appear but reception will still
be attempted the following hour.
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39
Snooze time
"Date. Month." (for 24h time display)
"Month. Date." (for 12h time display)
CALENDAR SETTING
Year
The date default of the Weather station is 1. 1. of the
year 2003 after initial set-up. Once the radio-controlled
time signal is received, the date is automatically updated.
However, if the signal is not received, the date can also
be set manually. To do this :
1. Using the IN key, set the year required. The range
runs from 2003 to 2039 (default is 2003).
2. Press the SET key to enter the month and date
setting mode.
3. Press the IN (or OUT) key to set the date and the
OUT (or IN) key to set the month required.
4. Confirm with the SET key and enter the “Snooze
setting ” or exit the setting mode by pressing the
CH or SNOOZE key.
SNOOZE SETTING:
The snooze time can be set OFF to a maximum time of
30 minutes (default is 10 minutes) :
1. Use the IN key to set the snooze time (minute).
Each pressing of the key will increase the snooze

time by 5 minutes. The snooze can also be set
OFF when the “OFF” digit is being displayed.
2. Confirm with the SET key and enter the “ºC / ºF
temperature display setting” or exit the manual
setting mode by pressing the CH or SNOOZE key.
Note :
If the snooze time has been set “OFF”, the snooze
function will not be activated.
°C/°F TEMPERATURE DISPLAY SETTING
Flashing
The default temperature reading is set to °C (degree
Celsius). To select °F (degree Fahrenheit) :
1. The “°C” will be flashing, use the IN key to toggle
between “°C” and “°F”.
2. Once the desired temperature unit has been
chosen, confirm with the SET key and enter the
“Weather Forecast Icon Sensitivity setting” or
exit the setting mode by pressing the CH or
SNOOZE key.
WEATHER FORECASTING ICON SENSITIVITY
SETTING
For locations with rapid changes of weather conditions,
the threshold can be set to a different level for faster
display of weather conditions.
1. Using the IN key to set the weather sensitivity
level. There are 3 levels of setting: 1, 2 and 3;
level 1 is the most sensitive setting, level 3 is the
least sensitive setting (default setting is "2").
Digit flashing
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2. Confirm with the SET key and exit the Manual
settings.
ALARM SETTING :
1. Press and hold down the AL1 key for about 3
seconds until the alarm time display flashes.
2. Use the IN key to set the hours and the OUT key
to set the minutes. Pressing these keys
continuously moves the hours consecutively by 1
hours and the minutes consecutively by 5 minutes.
3. Either press the AL1 key once more to confirm and
return to the normal display or do not touch any
buttons for about 15 seconds to confirm the set
time.
4. To activate the alarm function, press the AL1
button once for Alarm 1. You should now see the
((1)) alarm symbol to represent the Alarm 1 being
ON.
Alarm icon
Alarm time
5. To de-activate, press the AL1 button once again.
6. The steps for setting, activating and de-activating
Alarm 2 are the same, but using the AL2 button
instead of AL1.
SNOOZE SETTING AND STOPPING THE ALARM:
1. When the alarm is sounding, press the SNOOZE
key to activate the snooze function. The alarm will
stop and re-activate after the snooze interval of 5
minutes (for example).
2. To stop the alarm completely, press any keys
other than the SNOOZE key.
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WEATHER FORECAST AND TENDENCY
The weather forecasting icons :
There are 3 weather icons in the third section of LCD
which can be displayed in any of the following
combinations :
For every sudden or significant change in the air
pressure, the weather icons will update accordingly to
represent the change in weather. If the icons do not
change, then it means either the air pressure has not
changed or the change has been too slow for the
Weather station to register. However, if the icon
displayed is a sun or raining cloud, there will be no
change of icon if the weather gets any better (with sunny
icon) or worse (with rainy icon) since the icons are
already at their extremes.
Rainy
Cloudy with
sunny intervals
Sunny
The icons display weather forecasts in terms of getting
better or worse, and not necessarily sunny or rainy as
each icon indicates. For example, if the current weather
is cloudy and the rainy icon is displayed, it does not
mean that the product is faulty because it is not raining. It
simply means that the air pressure has dropped and the
weather is expected to get worse but not necessarily
rainy.
Note :
After setting up, readings for weather forecasts should
be disregarded for the next 12-24 hours. This will allow
sufficient time for the Weather Station to collect air
pressure data at a constant altitude and therefore result
in a more accurate forecast.
Common to weather forecasting, absolute accuracy
cannot be guaranteed. The weather forecasting feature
is estimated to have an accuracy level of about 75% due
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to the varying areas the Weather Station has been
designed for use in. In areas that experience sudden
changes in weather (for example from sunny to rain), the
Weather Station will be more accurate compared to use
in areas where the weather is stagnant most of the time
(for example mostly sunny).
If the Weather Station is moved to another location
significantly higher or lower than its initial standing point
(for example from the ground floor to the upper floors of
a house), remove the batteries and re-insert them after
about 30 seconds. By doing this, the Weather Station will
not mistake the new location as being a possible change
in air-pressure when really it is due to the slight change
of altitude. Again, disregard weather forecasts for the
next 12 to 24 hours as this will allow time for operation at
a constant altitude.
THE WEATHER TENDENCY INDICATOR
Working together with the weather icons are the weather
tendency indicators (located on the left and right hand
side of the weather icons). When the indicator points
upwards, it means that the air-pressure is increasing and
the weather is expected to improve, but when indicator
points downwards, the air-pressure is dropping and the
weather is expected to become worse.
Taking this into account, you will see how the weather
has changed and how it is expected to change. For
example, if the indicator is pointing downwards together
with cloud and sun icons, then the last noticeable change
in the weather was when it was sunny (sun icon only).
Therefore, the next change in the weather will be the
cloud with rain icons since the indicator is pointing
downwards.
Note :
Once the weather tendency indicator has registered a
change in the air pressure, it will remain permanently
visualized on the LCD.
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INDOOR TEMPERATURE AND HUMIDITY
READING WITH COMFORT LEVEL INDICATOR :
The indoor temperature and humidity are measured
automatically and displayed on the fourth section of the
LCD.
THE COMFORT LEVEL INDICATORS :
Comfortable: A happy face icon “☺” indicating a
temperature level between 20.0°C
and 25.9°C (68°F to 78.6°F) and
humidity between 45% and 65%.
Uncomfortable: A sad face icon “” indicating any
value outside the comfortable range.
Indoor comfort indicator
Indoor
Relative
Humidity %
Indoor
Temperature
in °C
Minimum Display
TOGGLING AND RESETTING THE INDOOR
RECORDINGS :
1. To toggle between the indoor current, minimum
and maximum temperature and humidity data and
the times at which they were recorded, press the
IN key:
- Once to show the minimum temperature and
humidity values with time and date recorded
- Twice to show the maximum temperature and
humidity values with time and date recorded
- Three times to return to the current time, date,
temperature and humidity levels.
Note : Tthe time/date information is only available for the
MIN/MAX temperature data.
2. To reset the minimum and maximum temperature
and humidity data and the times at which they
were recorded, press the IN key continuously for
about 3 seconds. This will reset all minimum and
maximum data recorded to the current time, date,
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