La Crosse Technology Wireless Weather Station User manual

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WEATHER STATION
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this advanced weather station as an example of innovative design and quality piece of
engineering. Providing radio controlled time, date, calendar, indoor and outdoor temperature, indoor relative humidity,
and air pressure history information, this unit will never keep you guessing on current and future weather conditions.
Operation of this product is simple and straightforward. By reading this operating manual, the user will receive a better
understanding of the Weather Station together with the optimum benefit of all its features.
«
Instant Transmission+» is the up and coming state
-
of
-
the
-
art new wireless transmissi
on 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
Function
keys
Stand
FEATURES:
The Weather Station
Battery
compartmen
Hanging hole

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• DCF Radio controlled time with manual setting option
• Time reception ON/OFF (user selectable)
• 12/24 hour time display
• Time zone option ±12 hours
• Weekday and day calendar display (year and month only in setting mode)
• Weather forecasting with weather tendency indicator
• Indoor comfort indicator
• Temperature display in ºC/ºF
• Indoor and outdoor temperature display with MIN/MAX records and time of reception
• Indoor humidity display as RH% with MIN/MAX records
• Relative air pressure hPa/ inHg with adjustable reference value
• Weather icon sensitivity setting
• Relative air pressure history for the past 12 hours (electronic barometer with barometric pressure trend)
• Wireless transmission at 868 MHz
• Signal reception intervals at 4 seconds
• Can receive up to 3 outdoor transmitters

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• LCD contrast selectable
• Low battery indicator
• Table standing or wall mounting
The Outdoor Temperature Transmitter
• Remote transmission of outdoor temperature to weather station by 868 MHz signal
• Rain proof casing
• Wall mounting case

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HOW TO INSTALL AND REPLACE BATTERIES IN THE WEATHER STATION
The Weather Station 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 center of the battery
compartment and lift up to remove the cover.
2. Insert batteries observing the correct polarity (see marking).
3. Replace compartment cover.

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HOW 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 batterycover on the unit.
Note:
In the event of changing batteries in anyof the units, all units need to be reset by following the setting up procedures.
This is due to a random security code assigned by the transmitter at start-up. This code must be received and stored
by the Weather Station in the first 3 minutes of power being supplied to the transmitter.

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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 authorized
depot.
SETTING UP
WHEN ONE TRANSMITTER IS USED
1. First, insert the batteries in the transmitter (see “How to install and replace batteries in the Termo-hygro
outdoor transmitter”above).
2. Within 2 minutes of powering up the transmitter, insert the batteries in the Temperature Station (see “How to
install and replace batteries in the Weather Station”above). Once the batteries are in place, all segments of
the LCD will light up briefly and a short signal tone will sound. Following the indoor temperature/humidity and the
time as 0:00 will be displayed. If these information are not displayed on the LCD after 60 seconds, remove the

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batteries and wait for at least 60 seconds before reinserting them. Once the indoor data is displayed user may
proceed to the next step.
3. After the batteries are inserted, the Weather station will start receiving data signal from the transmitter. The
outdoor temperature data should then be displayed on the Weather station. 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 868 MHz transmission however, the distance between the Weather Station and the
transmitter should not be more than 100 meters (see notes on “Positioning” and “868 MHz Reception”).
Note:
In the event of changing batteries of the units, ensure the batteries do not spring free from the contacts. Always wait at
least 1 minute after removing the batteries before reinserting, otherwise start up and transmission problems may occur.
WHEN MORE THAN ONE TRANSMITTER IS USED
1. User shall remove all the batteries from the Weather Station and transmitters, and wait 60 seconds.
2. Insert the batteries in the first transmitter.
3. Within 2 minutes of powering up the first transmitter, insert the batteries in the Weather Station. Once the
batteries are in place, all segments of the LCD will light up briefly and a short signal tine will sound. Following the

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indoor temperature/humidity and the time as 0:00 will be displayed. If these information are not displayed on the
LCD after 60 seconds, remove the batteries from both units and wait for at least 60 seconds before reinserting
them.
4. The outdoor temperature data from the first transmitter (channel 1) should then be displayed on the Weather
Station. Also, the signal reception icon will be displayed. If this does not happen after 2 minutes, the batteries will
need to be removed from both units and reset from step 1.
5. Insert the batteries in the second transmitter as soon as the outdoor temperature and humidity readings from the
first transmitter are displayed on the Weather Station.
Note : User shall insert the batteries into the second transmitter within 45 seconds after the Weather Station
displays the information of the first transmitter.
6. The outdoor temperature from the second transmitter and the "channel 2" icon should then be displayed on the
Weather Station. If this does not happen after 2 minutes, the batteries will need to be removed from all the units
and reset from step 1.
7. Insert the batteries in the third transmitter as soon as the "channel 2" icon and outdoor data are displayed on the
Weather Station. Then within 2 minutes, the channel 3 outdoor data from the third transmitter will be displayed
and the channel icon will shift back to "1" once the third transmitter is successfully received. If this is not happen,
user shall restart the setting up from step 1.

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Note : User shall insert the batteries into the third transmitter within 45 seconds after the Weather Station
displays the information of the first transmitter. Or immediately after reception of the second transmitter is
finished.
8. In order to ensure sufficient 868 MHz transmission however, the distance between the Weather Station and the
transmitter should not be more than 100 meters (see notes on “Positioning” and “868 MHz Reception”).
IMPORTANT:
Transmission problems will arise if the setting for additional sensors is not followed as described above. Should
transmission problems occur, it is necessary to remove the batteries from all units and start again the set-up from step
1.
RESETTING
The Weather Station and the Temperature transmitter need to be reset when one of the following conditions occur:
• Unsuccessful 868MHz signal reception.
• Malfunction on the units.
• Batteries replacement.
For resetting, remove all batteries from the units. Wait at least for 1 minute before powering up the Weather Station

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again. Proceed from step 1 in “Setting Up”.
DCF 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 1500km radius of Frankfurt.
Once the outdoor reception test period is completed, the DCF tower icon in the clock display will start flashing in the
upper center. 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.
DCF reception occurs twice daily at 02:00 and 03:00 am. If the reception is not successful at 03:00 am, then the next
reception takes place the next hour and so on until 06:00am, or until the reception is successful. If the reception is not
successful at 06:00 am, then the next attempt will take place the next day at 02:00 am.

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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
meters.
• 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.

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IN key
CH key
OUT/+ key
SET key
FUNCTION KEYS:
Weather Station:
The Weather Station has 4 easy to use function keys:
SET key
• Press and hold the key to enter manual setting modes: LCD contrast, time zone, time reception ON/OFF, 12/24
hour display, manual time setting, calendar, temperature °C/°F, pressure hPa / inHg, relative pressure value, and
weather icon sensitivity setting
• Reset all MIN/MAX records

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IN key
• Press to toggle between MAX/MIN and current indoor temperature/humidity data
• Decrease relative pressure value (within manual set mode)
OUT/+ key
• Press shortly to toggle between MAX/MIN and current outdoor temperature data
• Increase, change, toggle all values in manual set mode
CH key
• Switch among display of channels (if more than 1 transmitter is used)
• Exit the manual set mode
LCD SCREEN:
The LCD screen is split into 4 sections displaying the information for time/calendar, indoor temperature and humidity,
weather forecast, air pressure and outdoor temperature.

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Weather tendency
indicator
Time
Calendar display
Indoor relative humidity
in RH%
Time reception icon (for
DCF time)
Indoor temperature in
ºC
/ ºF
Weather forecast icon
Outdoor data signal
reception indicator
Outdoor temperature in
ºC/ ºF
Outdoor transmitter
identification number
Comfort indicator icon
Relative air pressure
history bar graph
Relative air pressure in
hPa/ inHg
Low battery indicator

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* When the signal is successfully received by the weather station, the Outdoor reception icon will be switched on. (If
not successful, the icon will not be shown in LCD) So the user can easilysee whether the last reception was
successful (icon on) or not (icon off). On the other hand, the flashing of the icon shows that a reception is being done
now.
MANUAL SETTINGS:
The following manual settings can be changed when pressing the SET key for:
• LCD contrast setting
• Time zone setting
• Time reception ON/OFF setting
• 12/24-hour format setting
• Manual time setting
• Calendar setting
• °C/°F temperature setting
• hPa/inHg pressure setting
• Relative air pressure setting

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• Weather forecasting icon sensitivity setting
LCD CONTRAST SETTING:
The LCD contrast can be set within 8 levels, from LCD 0 to LCD7 (Default setting is LCD 4):
1. Press the SET key until the digit starts flashing.
2. Use the OUT/+ key to view all levels of contrast.
3. Select the desired LCD contrast. Confirm with the SET key and enter in the Time Zone setting.
Last digit flashing

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TIME ZONE SETTING:
The time zone default of the Weather Station is “0”. To set a different time zone:
1. The current time zone value starts flashing.
2. Use the OUT/+ 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 intervals.
3. Confirm with the SET key and enter the Time reception ON/OFF setting.
Flashing

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TIME RECEPTION ON/OFF SETTING:
In area where reception of the DCF time is not possible, the DCF time reception function can be turn 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 OUT/+ key to turn OFF the time reception function.
3. Confirm with the SET key and enter the 12/24-hour format setting.
Note:
If the Time Reception function is turn OFF manually, the clock will not attempt any reception of the DCF time
as long as the Time Reception OFF function is activated.
Digits flashing

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The time reception icon and the “DCF” icon will not be displayed on the LCD.
12/24-HOUR FORMAT SETTING:
The time display can be selected to show hours in 12-hour or 24-hour settings. (Default 24-Hour)
1. Use the OUT/+ key to toggle between “12H” or “24H”.
2. Confirm with the SET key and enter the Manual time setting.
MANUAL TIME SETTING:
In case the Weather Station cannot detect the DCF-signal (for example due to disturbances, transmitting distance,
Digits flashing