La Crosse Technology WS9090 User manual

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WIRELESS 868 MHz TEMPERATURE STATION
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this 868MHz Temperature Station which displays the
time and indoor / outdoor temperature readings. With only two easy to use keys, this
innovative product is ideal for use in the home or office.
«
Instant Transmission+» is the up and coming state
-
of
-
the
-
ar
t 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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SET key
Hanging
hole
LCD
display
MIN/MAX/+ key
THE TEMPERATURE STATION
FEATURES:
The Temperature Station
• DCF-77 Radio Controlled time with manual settings
• Time display (hour, minutes, seconds)
• Time reception ON/OFF
• 12/24 hour time format
• Calendar display (month, date, weekday)
• Time zone option ±12 hours
• Temperature display in Celsius (°C) or Fahrenheit ( °F) selectable
• Indoor and outdoor temperature display with MIN/MAX records
• All MIN/MAX recordings can be reset
• Wireless transmission at 868 MHz
• Signal reception intervals at 4-second
Stand
Battery
compartment

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• Low battery indicator
• Table standing or wall mountable
THE OUTDOOR TEMPERATURE TRANSMITTER
• Remote transmission of outdoor temperature to
temperature station by 868MHz
• Weather-resistant casing
• Wall mounting case
• Mount in a sheltered place. Avoid direct rain and
sunshine
SETTING UP:
Note: This temperature 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 Temperature
station (see “Install and replace batteries in the Temperature station”).
Once the batteries are in place, all segments of the LCD will light up briefly.
Following the time as 0:00 will be displayed and indoor temperature. 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 Temperature station will start receiving data
from the transmitter. The outdoor temperature and the signal reception icon
should then be displayed on the Temperature station. If this does not happen

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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 Temperature station and the transmitter (see notes on
“Mounting” and “868 MHz Reception”).
5. Once the remote temperature has been received and displayed on the
Temperature station, the DCF time (radio controlled time) code reception is
automatically started. This takes typically between 3-5 minutes in good
conditions. If after 10 minutes, the DCF time has not been received, press the
SET key to manually enter a time initially.
Note:
Daily DCF reception is done at two hours interval until a reception is successful for
the day. If the reception is still not successful, then the next try takes place at 00:00
the next day.
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 TEMPERATURE
STATION
The Temperature 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
temperature station.

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2. Insert batteries observing the correct polarity (see marking).
3. Replace compartment cover.
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 battery compartment 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 security code is assigned by
the transmitter at start-up and this code must be received and stored by the
Temperature 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 authorized depot.

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MIN/MAX/+ key SET key
FUNCTION KEYS:
Temperature Station:
There are two easy-to-use function keys in the Temperature Station
SET key
• Press and hold for about 3 seconds to enter the Manual setting modes:
manual time, year, date, month, weekday, 12/24 hour time format, time zone,
time reception ON/OFF, and temperature settings.
• Press and hold to reset the indoor and outdoor MIN/MAX temperature records
MIN/MAX/+ key
• To make adjustments for various settings in manual setting modes
• To toggle between the MIN/MAX readings of indoor/ outdoor temperature

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Calendar
Low battery
icon (station)
Time
Outdoor
transmission
signal*
Indoor
temperature
Outdoor
temperature
DCF Tower Icon
(for time
reception)
Low battery icon
(transmitter)
LCD SCREEN AND SETTINGS
* 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 2 sections:
Section 1 - TIME AND CALENDAR
• Display the current time and calendar.
• A signal reception symbol is shown indicating that Atomic time (DCF time)
signal is received.
Section 2 - INDOOR AND OUTDOOR TEMPERATURE
• Display the current indoor temperature in normal display.
• Low battery indicator (temperature station)
• Display the outdoor temperature.

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• Display the signal reception symbol indicating that receiver is receiving
outdoor data.
• Low battery indicator
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
Temperature 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 temperature is displayed on the Temperature Station, 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 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.

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Minutes (flashing)
• 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 SETTING
The following manual settings can be done in the setting mode:
• Manual time
• Calendar
• 12/24 hour time display
• Time zone
• Time reception ON/OFF (DCF ON/OFF)
• Temperature unit °C/°F setting
Press and hold the SET key for about 3 seconds to advance to the setting mode:
MANUAL TIME SETTING
In area where reception of the DCF-77 time is not possible, the time can be manually
set. The clock will then be a normal Quartz clock. Once the DCF signal is detected, it
will change the manually set time into the received time. Please proceed the
following setting steps at the first time before using the Temperature Station.
1. The hour digit in the time section starts flashing. Use the MIN/MAX/+ key to
set the hour.
Hours (flashing)

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Month (flashing)
2. Press the SET key to enter the minutes. The minute digits start flashing.
3. Use the MIN/MAX/+ key to set the minute.
4. Press again the SET key to confirm and enter the Calendar setting mode.
Note:
The unit will still try and receive the signal despite it being manually set. When it
does receive the signal, it will change the manually set time into the received time.
CALENDAR SETTING
The date default of the Temperature station is 1. 1. in the year 2008. 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:
1. The year digits will start flashing. Use the MIN/MAX/+ key to set the year
(2008 to 2029).
2. Press the SET key to enter the month (the month digit will be flashing). Use
MIN/MAX/+ key to adjust the month.
3. Then press the SET key to enter the day. Use MIN/MAX/+ key to adjust the
day.
Year (flashing)
Day (flashing)
Weekday (flashing)