La Crosse Technology Wireless Weather Station User manual

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WIRELESS 868 MHz WEATHER STATION
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this Weather station with wireless 868MHz transmission. It not only
displays the indoor temperature and humidity but also receives the outdoor temperature. It is further acting
as a DCF-77 radio controlled clock. With a total of 15 different weather forecast icons featured by
"Weather man", users can easily observe the forecast weather condition and will no longer worry the
sudden weather change. This innovative 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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LCD Display
FEATURES:
The Weather station
Function Keys
Foldout
Stand
Battery
compartment
cover
Hanging hole

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•DCF Radio controlled time function or manual time setting options
•DCF time reception ON/OFF setting
•12/24 hour display
•Hour and minute display
•Calendar display
•Time zone option ±12 hours
•Wireless transmission at 868 MHz
•Signal reception intervals at 4-second
•Display indoor and outdoor temperature
•Display indoor humidity (% RH)
•Temperature displayed in degrees Celsius (°C) or Fahrenheit (°F) selectable
•Weather forecasting with 15 easy-to-read weather forecast signs featured by Weather man
•Indoor comfort level indicator
•Indoor and Outdoor temperature display with MIN/MAX recording
•All MIN/MAX recordings can be reset
•Low battery indicator
•Table standing/ Wall mounting

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The Outdoor Temperature Transmitter
•Remote transmission of outdoor temperature to Weather Station by 868
MHz
•Shower proof casing
•Wall mounting case (Mounting at a shelteredplace. Avoid direct rain
and sunshine)
SETTING UP:
Note: This weather station receives only one outdoor transmitter.
1. First, insert the batteries into the Temperature transmitter. (see “Install and replace batteries in
the Temperature transmitter“).
2. Immediately after and within 30 seconds, insert the batteries into Weather station (see “Install
and replace batteries in the Weather station”). Once the batteries are in place, all segments of

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the LCD will light up briefly. Following the time as 0:00 and the "Weather man" icon will be
displayed. If these are not displayed after 60 seconds, remove the batteries and wait for at least
10 seconds before reinserting them.
3. After inserting the batteries, the Weather station will start receiving data from the transmitter. The
outdoor temperature and the signal reception icon should then be displayed on theWeather
station. If this does not happen after 3 minutes, the batteries will need to be removed from both
units and reset from step 1.
4. In order to ensure sufficient 868 MHz transmission however, this should under good conditions be
a distance no more than 100 meters between the final position of the Weather Station and the
transmitter (see notes on “Mounting” and “868 MHz Reception”).
5. Once the remote temperature has been received and displayed on the Weather station, the DCF
time (radio controlled time) code reception is automatically started. This takes typically between
3-5 minutes in good conditions.
Note:
Daily DCF reception is done at 02:00 and 03:00 every day. If the reception at 03:00 is not successful, then
at 04:00 and 05:00 and 06:00 there are other tries, until one is successful. If the reception at 06:00 is still
not successful, then the next try takes place at 02:00 next day.

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If reception 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 “DCF-77 Radio Controlled Time” and “Manual
Time Setting”)
INSTALL AND REPLACE BATTERIES IN THE WEATHER STATION
The Weather station uses 2 x AAA, IEC LR3, 1.5V batteries. To install
and replace the batteries, please follow the steps below:
1. Remove the cover at the back of the Weather station.
2. Insert batteries observing the correct polarity (see marking).
3. Replace compartment cover.

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INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE TRANSMITTER
The Temperature Transmitter uses 2 x AA, IEC LR6, 1.5V battery. To install and
replace the batteries, please follow the steps below:
1. Remove the batterycompartment cover at the back of the transmitter.
2. Insert the batteries, observing the correct polarity (see marking).
3. Replace the battery compartment 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 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 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
authorised depot.

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FUNCTION KEYS:
Weather station:
The weather station has four easy to use function keys.
SET key
•Press and hold the key to enter manual setting modes: Time zone, Manual time, Calendar, Time
reception ON/OFF, 12/24 hour display and Temperature unit °C/°F setting
+ key
•To make adjustment for various settings
IN key
•Press to display the MIN and MAX indoor temperature records
SET key
IN key
+ key
OUT key

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•Press and hold to reset the indoor MIN/MAX temperature records
OUT key
•Press to display the MIN and MAX outdoor temperature records
•Press and hold to reset the outdoor MIN/MAX temperature records

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LCD SCREEN AND SETTINGS:
Indoor Relative
humidity %
Weather tendency icon
Weather
forecast icon
(Weather man)
Time
Outdoor
temperature
Outdoor reception signal*
Indoor temperature
Receiver low battery indicator
Radio controlled time
rece
p
tion icon
Transmitter low
battery indicator
Date
Indoor comfort indicator
Weather
forecast icon

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* When the outdoor signal is successfully received by the Weather Station, this icon will be switched on. (If
not successful, the icon will not be shown in LCD) So user can easily see whether the last reception was
successful (icon on) or not (icon off).
For better distinctness the LCD screen is split into 3 sections:
Section 1 - OUTDOOR TEMPERATURE
•Display the outdoor temperature.
•Display the signal reception symbol indicating that receiver is receiving outdoor data
Section 2 - INDOOR TEMPERATURE, INDOOR HUMIDITY, DATE AND WEATHER MAN ICON
•Display the current indoor temperature and humidity in normal display.
•Display the weather condition to be expected in form of 15 weather symbols (featured by Weather
man) which change their appearance depending on the air pressure development and the current
outdoor temperature.
•Display the weather tendency indicator and indoor comfort level indicator
•Display the date
Section 3 - TIME
•Display the current time.

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•A signal reception symbol is shown indicating that Atomic time (DCF time) signal is received.
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 1,500 km radius around Frankfurt.
Once the outdoor temperature is displayed on the Weather station after initial set-up, the DCF tower icon
in the clock display will start flashing in the upper left corner. 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.
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.

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•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.
MANUAL SETTINGS:
The following manual settings can be done in the setting mode:
•Time zone
•Manual time
•Calendar
•Time reception ON/OFF (DCF)
•12/24 hour display
•Temperature unit °C/°F setting
Press and hold the SET key for about 3 seconds to advance to the setting mode:
TIME ZONE SETTING:
Time zone (flashing)

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Minutes (flashing)
Hours (flashing)
The time zone default is "0 hour". To set a different time zone:
1. The current time zonevalue starts flashing.
2. Use the +key to set the time zone. The range runs from 0, -1, -2…-12, 12, 11, 10… 2, 1, 0, in
consecutive 1-hour intervals.
3. Confirm with the SET key and enter the Manual Time setting.
MANUAL TIME SETTING
In case the Weather station is not able to detect the radio-controlled time (DCF time) signal (disturbances,
transmitting distance, etc.), the time can be manually set. The clock will then work as a normal Quartz
clock.
To set the clock:
1. The hour digits start flashing in the time display section.
2. Use the + key to adjust the hours and then press SET key to go to the minute setting.
3. The minute will be flashing. Press the + key to just the minutes.
4. Confirm with the SET key and enter the “Calendar Setting”.

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"Day. Month." (for 24h time display)
"Month. Day." (for 12h time display)
CALENDAR SETTING
The date default of theWeather station is 1. 1. of the year 2006 after initial set-up. Once the radio-
controlled time signals are received, the date is automatically updated. However, if the signals are not
received, the date can also be set manually. To do this:
1. Using the + key, set the year required. The range runs from 2000 to 2029 (default is 2006).
2. Press the SET key to enter the month setting mode.
3. The month digit will be flashing. Press the + key to set the month and then press the SET key to go
to the date setting.
4. The date digit will be flashing. Press the + key to set the date.
5. Confirm with the SET key and enter the “Time reception On/Off setting".
Year

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TIME RECEPTION ON/OFF SETTING
In area where reception of the radio-controlled time (DCF time) is not possible, the 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” and the "dCF" digits will start flashing on the LCD.
2. Use the + key to turn OFF the time reception function if necessary.
3. Confirm with the SET key and enter the “12/24-Hour Display setting”.
Note:
If the Time Reception function is turned OFF manually, the clock will not attempt any reception of the
radio-controlled time (DCF time) as long as the Time Reception OFF function is activated. The Time
Reception icon will not be displayed on the LCD.
flashing

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12/24 HOUR TIME DISPLAY SETTING
1. After setting time reception ON/OFF, press the SET key, “12h”or “24h” flashes in the LCD. (default
24 h)
2. Press the + key to select the “12h” or “24h” display mode.
3. Press the SET again to confirm and to enter the “°C/°F Temperature unit setting”.
Note: When 24h mode display is selected, the calendar format will be "Day. Month." display. When 12h
mode display is selected, the calendar format will be "Month. Day." display.
°C/°F TEMPERATURE UNIT SETTING
flashing
flashing

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The default temperature reading is set to °C (degree Celsius). To select °F (degree Fahrenheit):
1. The “°C or °F” will be flashing, use the + key to toggle between “°C” and “°F”.
2. Once the desired temperature unit has been chosen, confirm with the SET key and exit the setting
mode.
WEATHER FORECAST AND TENDENCY:
The weather forecast icons (Weather man):
One of the 15 different weather icons (featured by Weather man with different clothing) is displayed in the
centre of LCD, which indicates the different forecast weather conditions (Sunny, Sunny + Cloudy or
Cloudy + Rainy) due to change in air pressure level and the current outdoor temperature:

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≥26°C (78.8°F) 19 to 25.9°C
(66.2 to 78.6°F) 10 to 18.9°C
(50 to 66°F) 0 to 9.9°C (32 to 49.8°F) < 0°C (32°F)
Sunny

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≥26°C (78.8°F) 19 to 25.9°C
(66.2 to 78.6°F) 10 to 18.9°C
(50 to 66°F) 0 to 9.9°C (32 to 49.8°F) < 0°C (32°F)
Sunny + Cloudy