La Crosse Technology WS-9035TWC User manual

WS-9035TWC
Wireless 433 MHz
Radio-controlled Weather Station
Instruction Manual

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TABLE OF CONTENTS
Topic Page
Inventory of Contents/Additional Equipment 3
About WWVB 3
Quick Set-Up Guide 4
Detailed Set-Up Guide
Battery installation 5
Program Mode
Program Sequence and Default Settings 6
Function Keys 6
Setting the LCD Contrast 6-7
Setting the Time Zone 7
Daylight Saving Time Setting 7
Radio-controlled Time Setting 7
12/24-hour Time Setting 8
Setting the Time 8
Setting the Year, Day and Month 9
Setting the Snooze 9
Setting the Temperature Format 9
Setting the Forecast Sensitivity 10
Features
Weather Forecast Icons and Tendency Arrows 11
Indoor Temperature, Humidity, & Comfort
Level Indicator 11
Outdoor Temperatures 11
Minimum & Maximum Records (Indoor,
Outdoor, & Resetting) 11-12
Moon Phase 13
Current, minimum and maximum Dew Point 13
Wind speed, wind chill and minimum and maximum 13-14
Beaufort Scale 14-16
Time Alarm 16
Mounting 17-18
Troubleshooting 19
Maintenance & Care 19
Specifications 20
Warranty Information 21

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INVENTORY OF CONTENTS
1. The WS-9035U weather station (Figure 1).
2. One TX8U remote temperature/humidity sensor (Figure 2).
3. One TX15U wind speed sensor (Figure 3).
4. Mounting hardware
5. Instruction manual and warranty card.
ADDITIONAL EQUIPMENT (not included)
1. Three fresh AA 1.5V batteries for the indoor weather station.
2. Two fresh AA 1.5V batteries for the remote temperature/humidity sensor.
The remote temperature/humidity sensor powers the wind speed sensor so no batteries are required.
3. One Philips screwdriver for mounting.
ABOUT WWVB (Radio Controlled Time)
The NIST (National Institute of Standards and Technology—Time and Frequency Division) WWVB radio station is located in Ft.
Collins, Colorado, and transmits the exact time and date signal continuously throughout the United States at 60 kHz. The signal can
be received up to 2,000 miles away through the internal antenna in the Weather Station. However, due to the nature of the Earth’s
Ionosphere, reception is very limited during daylight hours. The weather station will search for a signal every night when reception is
best. The WWVB radio station derives its signal from the NIST Atomic clock in Boulder, Colorado. A team of atomic physicists is
continually measuring every second, of every day, to an accuracy of ten billionths of a second per day. These physicists have created
an international standard, measuring a second as 9,192,631,770 vibrations of a Cesium-133 atom in a vacuum. For more information
on the atomic clock and WWVB please see the NIST website at http://www.boulder.nist.gov/timefreq/stations/wwvb.htm.
Figure 1
Time LCD
For
ecast LCD
Indoor LCD
Outdoor LCD
Figure 3
Figure 2
Wind S
p
eed LCD
Moon Phase LCD
Date LCD

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QUICK SET-UP GUIDE
Hint: Use good quality Alkaline Batteries and avoid rechargeable batteries.
1. Have the indoor weather station, remote temperature/humidity sensor and wind speed sensor 3 to 5 feet apart.
2. Insert the telephone plug (RJ-11) from the wind speed sensor into the receptacle on the remote temperature/humidity
sensor.
3. Batteries should be out of both the indoor weather station and remote temperature/humidity sensor units for 10 minutes.
4. Place the batteries into the remote temperature/humidity sensor first then into the indoor weather station.
5. DO NOT PRESS ANY BUTTONS FOR 15 MINUTES.
In this time the indoor weather station and remote temperature/humidity sensor will start to talk to each other and the display will
show the indoor temperature/humidity, outdoor temperature/humidity and wind speed. If the indoor weather station does not display
all information after the 15 minutes please retry the set up as stated above. After all information has been displayed for 15 minutes
you can place your sensors outdoors and set your time.
Important Notes on Set-up and Operation
•The remote temperature/humidity sensor is both the source of power for both outdoor sensors and source of transmission for all
remote sensor data.
•The remote temperature/humidity sensor should be placed in a dry, shaded area.
•Fog and mist will not harm your remote temperature/humidity sensor but direct rain must be avoided.
•Direct rainfall will not harm the wind speed sensor.
•The remote temperature/humidity sensor has a range of 300 feet. Any walls that the signal will have to pass through will reduce
distance. An outdoor wall or window can have up to 30 feet of resistance and an interior wall can have up to 20 feet of
resistance. Your distance plus resistance should not exceed 300 ft. in a straight line.
•The remote temperature/humidity sensor transmits a signal every minute. After the batteries have been installed, the indoor
weather station will search for the signal for a duration of 15 minutes. If there is no temperature or humidity reading in the
OUTDOOR LCD or wind speed in the WIND SPEED LCD after 15 minutes, make sure the units are within range of each other,
or repeat the battery installation procedure.
•If a button is pressed before the indoor weather station receives the signal from the remote temperature/humidity sensor, you will
need to follow the battery installation procedure again.
To complete the set up of your new wireless weather station after the 15 minutes have passed please follow the steps that follow in the
Detailed Set-Up Guide.
DETAILED SET-UP GUIDE
BATTERY INSTALLATION
The first step to powering up the weather station is to insert the connector (RJ11) at the end of the wire attached to the wind speed
sensor to the remote temperature/humidity sensor. Please ensure when doing this that the connector is inserted with the proper
orientation. When seated properly you will hear the connector ‘click’ in place.
A. REMOTE TEMPERATURE/HUMIDITY SENSOR
1. Remove the mounting bracket and humidity hood.
2. Remove the battery cover by sliding the cover down.
3. Observing the correct polarity install 2 AA batteries. The batteries will fit tightly (to avoid start-up problems make
sure they do not spring free).
4. Replace the battery cover by sliding upwards. Be sure battery cover is on securely.
5. Replace the humidity hood.
B. INDOOR WEATHER STATION

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1. Remove the battery cover. To do this, insert a solid object in the space provided at the lower-central position of the
battery cover, then push up and pull out on the battery cover.
2. Observe the correct polarity, and install 3 AA batteries.
3. Replace the battery cover.
Note: Immediately after the batteries have been installed, the LCD (Liquid Crystal Display) will flash. Within 15
seconds the indoor temperature, indoor relative humidity, and the weather icons (sun and clouds) will be displayed.
If not, remove batteries for 10 seconds and reinstall. If the outdoor temperature is not displayed within four minutes,
remove batteries from both units, wait 30 seconds, and reinstall making sure to install batteries into the remote
temperature sensor first. The time will show -:-- and start searching for the WWVB signal. If it successfully receives
the time signal (usually at night), it will display the correct time (default time-zone is Eastern). You will need to
adjust the time zone to match your local time.
PROGRAM MODE
Programming Note: If 30 seconds are allowed to pass, or the WIND/SNZ button is pressed during the programming mode, the
unit will confirm/set the last information entered—the display will stop flashing and return to normal time-date readings. If you
don’t leave the program mode during the programming of sections IV through XI, you can advance to step 4 of the next program
setting. If you do leave the program setting (or want to program a specific setting) follow each instructional step to program that
setting.
I. PROGRAMMING SEQUENCE AND DEFAULT SETTINGS
The programming sequence and default (factory) settings are as follows:
LCD Contrast 5
Time Zone -5 (Eastern)
Daylight Saving Time ON
Radio-controlled time reception ON
12/24-hour time 12
Time – Hour 12
Time – Minute :00
Year 2003
Month 1
Day 1
Snooze 10 minutes
Temperature Format °F
Forecast Sensitivity 2
II. FUNCTION KEYS
The function keys are located on the front of the unit directly below the LCD (Liquid Crystal Display).

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III. SETTING THE LCD CONTRAST
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
Note: There are 8 LCD contrast levels to choose from—“Lcd 0” is the lightest, and “Lcd 7” is the darkest.
3. Press and release the ALM/+ button to select the level you desire.
4. Press and release the SET button to confirm and advance to the Time Zone setting.
IV. TIME ZONE SETTING
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button again.
4. The time zone will flash in the DATE LCD.
5. Press and release the ALM/+ button to select your time zone.
Note: It is possible to select any time zone from –12 GMT to +12 GMT (for example to see the time in another
country)
TIME ZONES
GMT 0
Atlantic -4
EST; Eastern -5
CST; Central -6
MST; Mountain -7
PST; Pacific -8
ALA; Alaska -9
HAW; Hawaii -10
6. Press and release the SET button to confirm and advance to the Daylight Saving Time setting.
V. DAYLIGHT SAVING TIME (DST) SETTING
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button twice.
4. “DST” will appear in the DATE LCD and either “ON” or “OFF” will
flash in the TIME LCD.
5. Press and release the ALM/+ button to select DST on or off.
Note: “DST OFF” indicates that the feature is off and the WWVB will not change times automatically. “DST ON”
indicates that the feature is on and the WWVB will change times automatically.
Note: Some locations (Arizona and parts of Indiana) do not follow Daylight Saving Time, and should select “DST
OFF”.
6. Press and release the SET button to confirm and advance to the radio-controlled time on/off setting.
VI. RADIO-CONTROLLED TIME ON/OFF SETTING
1. Press and hold the SET button for 5 seconds.

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2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button three times.
4. “RCC” will appear in the DATE LCD and “ON” or “OFF” will flash in
the TIME LCD.
5. Press and release the ALM/+ button to select radio-controlled time on or
off.
6. Press and release the SET button to confirm and advance to the 12/24-
hour time setting.
VII. 12 OR 24 HOUR TIME SETTING
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button four times.
4. “12h” or “24h” will flash in the DATE LCD.
5. Press and release the ALM/+ button to select 12 or 24-hour time format.
Note: When in the 12-hour format “P.M.” will appear to the left of the hour in the time LCD between the hours of
noon and midnight.
6. Press and release the SET button to confirm and advance to the time setting.
VIII. TIME SETTING
There are two methods by which the time and date can be set:
A) Automatically via WWVB reception, or
B) Manually.
A. WWVB (Remote Control Time)
This method requires you to do nothing, except wait for the signal to be received, and to select a time zone. Reception
usually takes approximately 10 minutes during optimal conditions. The best conditions for reception is at night, between
midnight and 6:00 am—when there is less atmospheric interference. To keep your time as accurate as possible, the
indoor weather station conducts a WWVB search every night between these hours, and overrides any manually set time.
The WWVB tower icon (appearing in the TIME LCD) will flash when a signal-search is in progress and a signal is
being received, and will remain steady when the signal has been received. If the WWVB time has not been received
after 10 minutes of battery installation, you may manually set the time or leave the time function alone (reception will
occur regardless).
B. MANUAL TIME SETTING
Note: When in the 12-hour format “P.M.” will appear to the left of the hour in the time LCD between the hours of
noon and midnight.
Note: Reception of the WWVB signal will automatically set the time. The reception of the signal will override any
programmed time.
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button five times.
4. The hours digits will flash in the TIME LCD.
5. Press and release the ALM/+ button to advance the hours.
6. Press and release the SET button to confirm the hours setting and advance
to the minutes setting.
7. The minutes digits will flash in the TIME LCD.
8. Press and release the ALM/+ button to advance the minutes.
9. Press and release the SET button to confirm and advance to the year setting.

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IX. SETTING THE YEAR, DAY AND MONTH
Note: Reception of the WWVB signal will also set the date and day. The reception of the signal will override any
programmed date and day.
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button seven times.
4. The year will flash in the DATE LCD.
5. Press and release the ALM/+ button to advance the year.
6. Press and release the SET button to confirm the year and advance to the
month setting.
7. The month will flash in the DATE LCD.
8. Press and release the ALM/+ button to advance the month.
9. Press and release the SET button to confirm the month and advance to the
day setting.
10. The day of the month will flash in the DATE LCD.
11. Press and release the ALM/+ button to advance the day of the month.
12. Press and release the SET button to confirm and advance to the snooze
setting.
X. SETTING THE SNOOZE
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button ten times.
4. “Sn” will appear in the DATE LCD and a number will be flashing next to
it.
5. Press and release the ALM/+ button to select the duration of the snooze.
Note: The snooze can be set for 0 to 30 minutes in 5-minute increments. If 0 minutes is selected pressing the
WIND/SNZ button will deactivate the alarm and it will not come back on.
6. Press and release the SET button to confirm and advance to the temperature format setting.
XI. SELECTING °F OR °C
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the time LCD and the number setting will flash.
3. Press and release the SET button eleven times.
4. Either ”°F” or “°C” will flash in the TIME LCD.
5. Press and release the ALM/+ button to select the temperature format.
6. Press and release the SET button to confirm and advance to the forecast
sensitivity setting.
XII. SETTING THE FORECAST SENSITIVITY
Note: The forecast sensitivity can be adjusted to allow for areas that have
a higher or lower sensitivity to changing air pressure (for example coastal
areas have more pressure change than areas such as southern Arizona).
The numbers correspond to the amount of air pressure change necessary to
trigger a change in the forecast icon. Areas that tend to have more air
pressure change would set the sensitivity to 3, while areas that experience
lower than normal air pressure change would set the sensitivity to 1.
1. Press and hold the SET button for 5 seconds.
2. “LCD” will show in the TIME LCD and the number setting will flash.
3. Press and release the SET button twelve times.

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4. Either “1”, “2” or “3” will flash in the TIME LCD and the forecast icon and tendency arrows will flash in the
FORECAST LCD.
5. Press and release the ALM/+ button to select the forecast sensitivity
6. Press and release the SET button to confirm the forecast sensitivity and complete the programming.
FEATURES OF THE WS-9035U
I. WEATHER FORECAST
The weather forecasting feature is estimated to be 75% accurate and is for the next 12 to 24 hours. The weather forecast is
based solely upon the change of air pressure over time. The WS-9035U averages past air-pressure readings to provide an
accurate forecast—creating a necessity to disregard all weather forecasting for 12-24 hours after the unit has been set-up,
reset, or moved from one altitude to another (i.e. from one floor of a building to another floor). In areas where the weather is
not largely affected by the change of air pressure, the sensitivity setting should be set to 1. In areas where the air pressure
changes more rapidly (such as coastal areas) the sensitivity setting should be set to 3.
A. WEATHER ICONS
There are 3 possible weather icons that will be displayed in the FORECAST LCD:
Comfort Level
Indicator
Weather
Tendenc
y Arrow
WWVB Tower
Icon (indicates
time reception)
Satellite icon
(indicates
outdoor
transmission)
Radio-controlled
time icon
(indicates radio-
controlled time
turned on)
Forecast
icon
Current moon
phase display
Beaufort Scale
Wind Indicator

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Sunny—indicates that the weather is expected to improve (not that the weather will be sunny).
Sun with Clouds—indicates that the weather is expected to be fair (not that the weather will be sunny with clouds).
Clouds with Rain—indicates that the weather is expected to get worse (not that the weather will be rainy).
These icons indicate the expected weather change in the next 12 to 24 hours. The icon does not give an exact
prediction of the weather, however it should be viewed as a generalization of the expected weather change (for
example a “sunny” icon indicates the weather is expected to improve).
The weather icons change when the unit detects a change in air pressure. The icons change in order, from “sunny”
to “partly sunny” to “cloudy” or the reverse. It will not change from “sunny” directly to “rainy”, although it is
possible for the change to occur quickly. If the symbols do not change then the weather has not changed, or the
change has been slow and gradual.
B. WEATHER TENDENCY ARROWS
Other possible displays in the FORECAST LCD are 2 weather tendency arrows, one that points up (on the left side
of the LCD) and one that points down (on the right side of the LCD). These arrows reflect current changes in the
air pressure. An arrow pointing up indicates that the air pressure is increasing and the weather is expected to
improve or remain good, an arrow pointing down indicates that the air pressure is decreasing and the weather is
expected to become worse or remain poor. No arrow means the pressure is stable.
II. INDOOR TEMPERATURE, HUMIDITY, AND COMFORT LEVEL INDICATOR
The current indoor temperature and relative humidity are displayed in the INDOOR LCD.
The comfort level indicator is located at the bottom left of the INDOOR LCD. The indicator will display a happy face icon
when the temperature is between 68°F and 79°F (20°C and 25.9°C), and the humidity is between 45% and 64%. A sad face
icon will be displayed when the temperature and humidity are outside the mentioned ranges.
III. OUTDOOR TEMPERATURE AND HUMIDITY
The temperature and humidity received from the remote temperature/humidity sensor is viewed in the OUTDOOR LCD.
IV. MINIMUM AND MAXIMUM TEMPERATURE RECORDS
The WS-9035U keeps a record of the MINIMUM and MAXIMUM temperature, and the time and date of their occurrence,
for both the indoor and outdoor modes.
A. VIEWING THE INDOOR TEMPERATURE RECORDS
1. Press and release the IN/HR button once. “MAX” appears to the right of the indoor temperature, indicating that
the maximum temperature (along with the humidity measured at that time) and the time and date of occurrence
are displayed. The maximum records will display for 30 seconds before returning to the normal display mode.
2. Press and release the IN/HR button again (once while “MAX” is still displayed, twice otherwise). “MIN”
appears to the right of the indoor temperature, indicating that the minimum temperature (along with the
humidity measured at that time) and the time and date of occurrence are displayed.
3. While “MIN” is still displayed press and release the IN/HR button again to return to the current data display.
Or you can wait 30 seconds, during either the minimum or the maximum readings, and the unit will
automatically return to current data readings.
B. VIEWING THE OUTDOOR TEMPERATURE RECORDS
1. Press and release the OUT/MIN button once. “MAX” appears above the outdoor temperature and the LCD will
flash, indicating that the maximum temperature, and the time and date of occurrence are displayed. The
maximum records will display for 30 seconds before returning to the normal display mode.