La Crosse Technology WS9090 User manual

23
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!

24
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

25
• 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

26
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.

27
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.

28
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

29
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.

30
• 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.

31
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)

32
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)

33
4. Press the SET key to enter the weekday (the weekday digit will be flashing).
Use MIN/MAX/+ key to adjust the weekday.
5. Press the SET key to confirm and enter the 12/24 hour time display mode.
12/24 HOUR TIME DISPLAY SETTING
To set the time format to 12h or 24h display mode (default 24h):
1. Use the MIN/MAX/+ key to select the “12h” or “24h” display mode.
2. Press the SET to confirm and to enter the Time zone setting mode.
Note: When 24h mode display is selected, the calendar format will be "Weekday.
Day. Month" display. When 12h mode display is selected, the calendar format
will be "Weekday. Month. Day" display.
TIME ZONE SETTING
The time zone can be set between ±12 hours (default 0 hour):
1. The time zone starts flashing.
2. Use the MIN/MAX/+ key to change the time zone. The range runs from 0, -1, -
2…-12, 12, 11, 10… 2, 1, 0, in consecutive 1-hour intervals.
Flashing
Time zone (flashing)

34
flashing
3. Press the SET key to confirm and enter the Time reception ON/OFF setting
mode.
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 “ON” digits will start flashing on the LCD.
2. Use the MIN/MAX/+ key to turn OFF the time reception function if necessary.
3. Confirm with the SET key and enter the °C/°F Temperature unit setting
mode.
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.
°C/°F TEMPERATURE UNIT SETTING
The default temperature reading is set to °C (degree Celsius). To select °F (degree
Fahrenheit):
f
lashing

35
1. The “°C” or “ °F” will be flashing, use the MIN/MAX/+ key to toggle between
“°C” and “°F”.
2. Confirm with the SET key and exit the manual setting modes.
CHECKING THE MIN/ MAX TEMPERATURES
1. In normal mode display, press the MIN/MAX/+ key to display the outdoor MIN
display and the time and date of record.
2. Press the MIN/MAX/+ key a second time to show the outdoor MAX display
and the time and date of record.
3. Press the MIN/MAX/+ key a third time to show the indoor MIN display and the
time and date of record.
4. Press again the MIN/MAX/+ key once to display the indoor MAX display and
the time and date of record.
MAX icon
MIN icon
Outdoor
temperature
Outdoor
data
reception
indicator
Indoor
temperature
Max icon
MIN icon

36
5. Press the MIN/MAX/+ to return to current indoor and outdoor temperature
display.
RESETTING THE MIN/ MAX TEMPERATURE
Note: All the indoor and outdoor MIN/MAX records will the reset at the same
time.
1. Press the MIN/MAX/+ key once to enter the indoor temperature display.
2. Press the SET key . This will reset both the MIN/MAX indoor and outdoor
temperature data to the current temperature data.
LOW BATTERY INDICATOR
Low battery indicator is displayed on the LCD when the batteries require changing.
OUTDOOR TRANSMITTER
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.
868 MHz RECEPTION:
The Temperature station should receive the temperature data within 2 minutes after
set-up. If the temperature data is not received 2 minutes after setting up (the outdoor
display shows
“- - -” ), please check the following points:
1. The distance of the Temperature station or transmitter should be at least 1.5
to 2 meters away from any interfering sources such as computer monitors or
TV sets.
2. Avoid positioning the Temperature station onto or in the immediate proximity
of metal window frames.

37
3. Using other electrical products such as headphones or speakers operating on
the same signal frequency (868MHz) may prevent correct signal transmission
and reception.
4. Neighbors using electrical devices operating on the 868MHz signal frequency
can also cause interference.
Note:
• When the 868MHz signal is received correctly, do not re-open the battery
cover of either the transmitter or Temperature station, as the batteries may
spring free from the contacts and 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 about 100 m from the transmitter to the
Temperature station (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).
POSITIONING
THE TEMPERATURE STATION:
Choose a sheltered place. Avoid direct rain and sunshine.
Before wall mounting, please check that the outdoor temperature values can be
received from the desired locations.

38
Wall mount
1. Fix a screw (not supplied) into the desired wall, leaving
the head extended out the by about 5mm.
2. Hang the station onto the screw. Remember to ensure
that it locks into place before releasing.
Free standing
With the foldout stand, the weather station can be placed onto any
flat surface.
OUTDOOR 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 position on a flat surface by securing
the stand to the bottom to the Transmitter.

39
To wall mount:
1. Secure the bracket onto a desired wall using the screws
and plastic anchors.
2. Clip the remote temperature sensor onto the bracket.
Note:
Before permanently fixing the transmitter wall base, place all
units in the desired locations to check that the outdoor
temperature reading is receivable. In event that the signal is
not received, relocate the transmitters or move them slightly as
this may help the signal reception.
CARE AND MAINTENANCE:
• Extreme temperatures, vibration and shock should be avoided as these may
cause damage to the unit and give inaccurate forecasts and readings.
• Precautions shall be taken when handling the batteries. Injuries, burns, or
property damage may be resulted if the batteries are in contact with
conducting materials, heat, corrosive materials or explosives. The batteries
shall be taken out from the unit before the product is to be stored for a long
period of time.
• Immediately remove all low powered batteries to avoid leakage and damage.
Replace only with new batteries of the recommended type.
• When cleaning the display and casings, use a soft damp cloth only. Do not
use solvents or scouring agents as they may mark the LCD and casings.
• Do not submerge the unit in water.
• Special care shall be taken when handling a damaged LCD display. The liquid
crystals can be harmful to user's health.

40
• Do not make any repair attempts to the unit. Return them to their original point
of purchase for repair by a qualified engineer. Opening and tampering with
the unit may invalidate their guarantee.
• Never touch the exposed electronic circuit of the device as there is a danger
of electric shock should it become exposed.
• Do not expose the units to extreme and sudden temperature changes, this
may lead to rapid changes in forecasts and readings and thereby reduce their
accuracy.
SPECIFICATIONS:
Temperature measuring range:
Indoor : -9.9ºC to +59.9ºC with 0.1ºC resolution
(14.1°F to +139.8°F with 0.2°F resolution)
(“OF.L” displayed if outside this range)
Outdoor : -39.9ºC to +59.9ºC with 0.1ºC resolution
(-39.8°F to +139.8°F with 0.2°F resolution)
(“OF.L” displayed if outside this range)
Indoor Temperature checking interval : every 16 seconds
Outdoor Temperature reception : every 4 seconds
Power consumption:
Temperature Station : 2 x AAA, IEC LR3, 1.5V
Outdoor Temperature Transmitter : 2 x AA, IEC LR6, 1.5V
Battery life cycle : approximately 24 months
(Alkaline batteries recommended)
Dimensions (L x W x H):
Temperature Station : 109 x 18.8 x 103.6 mm
Outdoor Temperature Transmitter : 38.2 x 21.2 x 128.3 mm

41
R&TTE Direc
tive 1999/5/EC
Summary of the Declaration of Conformity : We hereby
declare that this wireless transmission device does
comply with the essential requirements of R&TTE
Directive 1999/5/EC.
LIABILITY DISCLAIMER:
• The electrical and electronic wastes contain hazardous substances. Disposal
of electronic waste in wild country and/or in unauthorized grounds strongly
damages the environment.
• Please contact your local or/and regional authorities to retrieve the addresses
of legal dumping grounds with selective collection.
• All electronic instruments must from now on be recycled. User shall take an
active part in the reuse, recycling and recovery of the electrical and electronic
waste.
• The unrestricted disposal of electronic waste may do harm on public health
and the quality of environment.
• As stated on the gift box and labeled on the product, reading the “User
manual” is highly recommended for the benefit of the user. This product must
however not be thrown in general rubbish collection points.
• The manufacturer and supplier cannot accept any responsibility for any
incorrect readings and any consequences that occur should an inaccurate
reading take place.
• This product is designed for use in the home only as indication of the
temperature.
• This product is not to be used for medical purposes or for public information.
• The specifications of this product may change without prior notice.
• This product is not a toy. Keep out of the reach of children.
• No part of this manual may be reproduced without written authorization of the
manufacturer.