La Crosse Technology WS-7394U User manual

WS-7394U
Wireless 433 MHz
Weather Station
Instruction Manual
R
FCC DISCLAIMER
FCC ID: OMO-01RX (Receiver), OMO-01TX (transmitter)
This device complies with part 15 of the FCC rules. Operation is sub-
ject to the following two conditions:
(1)This device may not cause harmful interference.
(2)This device must accept any interference received, including inter
ference that may cause undesired operation.

Contents
Language Page
English 2
French 18
Spanish 36
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
Start Up Sequence 6
Explanation of LCD Information 7
Function Key Layout 8
Program Mode
Overview of Programming Sequence 8
LCD Contrast Setting 8
Time Zone Setting 9
DST ON/OFF Setting 9
Radio-controlled Time ON/OFF Setting 10
12/24-hour Time Mode Setting 10
Setting the Time/Date Manually 11
Temperature Measuring Units (˚F/˚C) 12
Air Pressure Measuring Units (inHg/hPa) 13
Relative Pressure Setting 13
Forecast Sensitivity Setting 14
Features and Operation
Minimum/Maximum Temperature/Humidity 14
Multiple Remote Temperature/Humidity Sensors 15
Comfort Icon 16
Weather Forecast and Pressure Trend Indicators 16
Weather Icons 17
Weather Tendency Arrows 17
Barometric Air Pressure Reading 18
Air Pressure History Bar Chart 18
Mounting 19
Maintenance and Care 20
Troubleshooting Guide 20
Specifications 21
Warranty Information 22
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INVENTORY OF CONTENTS
1. WS-7394U-indoor weather station
2. TX6U-remote temperature (temperature/humidity) sensor
3. Instruction manual and warranty card
ADDITIONAL EQUIPMENT (not included)
1. Five fresh AA 1.5V alkaline batteries.
2. One wall-mounting screw (optional)
ABOUTWWVB (radio-controlled time)
The NIST (National Institute of Standards and Technology-Time and
Frequency Division) radio station, WWVB, is located in Ft. Collins,
Colorado and transmits the exact time 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 indoor weather station.
However, due to the nature of the Earth’s Ionosphere, reception is
verylimited during daylight hours. The indoor weather station will search
for a signal every night when reception is best. TheWWVB radio sta-
tion derives its signal from the NIST Atomic clock in Boulder, Colorado.
A team of atomic physicists continually measure every second of ev-
ery day to an accuracy of ten billionths of a second a day. These
physicists have created an international standard, measuring a sec-
ond as 9,192,631,770 vibrations of a Cesium 133 atom in a vacuum.
For more information about WWVB please see the NIST website at
http://www.boulder.nist.gov/timefreq/stations/wwvb.htm
QUICK SET-UP GUIDE
Hint: Use good quality Alkaline Batteries and avoid rechargeable
batteries.
1. Have the indoor weather station and remote temperature sensor 3
to 5 apart.
2. Batteries should be out of both units for 15 minutes.
3. Place the batteries into the remote temperature sensor first then
into the indoor weather station.
(All remote temperature sensors must be started before the indoor
weather station)
4. DO NOT PRESS ANY BUTTONS FOR 15 MINUTES.
In this time the indoor weather station and remote temperature sensor
will start to talk to each other and the indoor weather station will show
both the indoor temperature and humidity and the outdoor temperature.
If the indoor weather station does not display all values after the 15
minutes please retry the set up as stated above. After all values are
displayed for 15 minutes you can place your remote temperature sen-
sor outdoors and set your time.
The remote temperature sensor should be placed in a dry, shaded
area. The remote temperature sensor has a range of 330 feet. Any
walls that the signal will have to pass through will reduce distance. An
outdoor wall or window will have 20 to 30 feet of resistance and an
interior wall will have 10 to 20 feet of resistance. Your distance plus
resistance should not exceed 330 ft.in a straight line.
NOTE: Fog and mist will not harm your remote temperature sensor
but direct rain must be avoided.
To complete the set up of your indoor weather station after the 15
minutes have passed please follow the steps in the Detailed Set Up
Guide.
Note: The remote temperature sensor transmits a signal every 3
minutes; after the batteries have been installed, the indoor weather
station will search for the signal for a duration of 5 minutes. If there is
no temperature reading in the OUTDOOR LCD after 5 minutes, make
sure the units are within range of each other, or repeat the battery
installation procedure.
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DETAILED SET-UP GUIDE
I. Battery Installation
Batteries will fit tightly. To avoid start-up problems, make sure that the
batteries do not spring free. Also be sure to insert alkaline batteries
intothe remote temperature sensor first, thentheindoorweatherstation.
Initial set up should be done with the remote temperature sensor and
indoor weather station in the same room.The units should be perma-
nently mounted only after the signal reception has been verified.
A. RemoteTemperature and Humidity Sensor
1. Remove the mounting bracket. The bracket snaps on and off easily.
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.
B. IndoorWeather Station
1. Remove the battery cover (the cover has white writing on it).
2. Observe the correct polarity, and install two Alkaline AA batteries.
3. Do not press any buttons for at least ten minutes. If a button is
pressed before the indoor weather station has received informa-
tion from the TX6U sensor, no data will be received from that sen-
sor until reset.
4. Replace the battery cover.
II. Start Up Sequence
A. Initial Start
1. Immediately after the batteries have been installed the LCD will
completely light up for a brief moment.
2. All information will then appear in normal mode, with “12:00”as the
default time and “WE.1” as the default date (2004 as the year).
3. The indoor temperature and humidity, and barometric air pressure
(as 29.91 inHg relative RH) will also be displayed.
4. There is a “satellite”icon that appears in the bottom portion of the
LCD, to the left of the outdoor temperature- this icon informs the
user that the indoor weather station is looking for signals from the
remote temperature sensor. Within five minutes the remote tem-
perature should be displayed-if not, remove batteries from all units
and repeat battery installation, the remote temperature sensor first,
then the indoor weather station.
B. WWVB Reception
1. Once the batteries are installed in the indoor weather station it will
automatically search for the WWVB signal. If it receives a good
signal (which is unlikely during daylight hours in most locations),
the WWVB reception indicator (looks like a tower icon) will flash.
The indoor weather station requires five full minutes of good recep-
tion to successfully capture the signal and set to the correct hour,
minute, second, month, day and year.If the signal reception is not
successful within ten minutes, the signal search will be cancelled
and will automatically resume every two hours until the signal is
successfully captured.
2. The signal is sent from Ft. Collins, Colorado only and is similar to
an AM radio signal. Atmospheric interferences such as storms,
sunspots, and even sunlight will cause the signal to not travel as
far.
3. To maximize reception, place the indoor weather station in a win-
dow facing Colorado, at least six feet from any electrical source
(computers, televisions, refrigerators, etc.). Do not move the in-
door weather station while it is searching for the signal.
4. The time and date can be manually set.Once the signal is captured,
it will override any time and date set to the time zone selected.
Battery Cover
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5. Once the time and date are set, the indoor weather station will
conduct a search every night at midnight and correct to the accu-
rate time and date (Daylight SavingTime is automatic).If the signal
has been received in the past 24 hours, the reception indicator will
be displayed.
III. Explanation of LCD Information
A. The below picture highlights the LCD features.
B. There are many different modes the indoor weather station can be
set to.The LCD shown is the normal operating mode, and your
actual data shown will be different based on your local settings and
conditions.
IV.Function Key Layout
A. The below picture shows the four function keys used in program-
ming and operation of your indoor weather station
V. Program Mode
The program mode is laid out in a manner that allows you to program
each function separately, or you can follow the instructions entirely to
program the indoor weather center. Complete programming is usually
done for the initial set-up, and will require you to skip step 1,2 and 3 of
each programming section. The programming mode can be exited at
any time by either pressing the“CH” button, or waiting for the 15-sec-
ond time-out to take effect.
A. Overview of programming mode sequence
1. LCD Contrast 2. Time Zone 3. DST ON/OFF
4. Radio-controlled 5. 12/24-hour 6. Hour
Time ON/OFF time mode
7. Minute 8. Year 9. Month
10. Date 11. ˚F/˚C 12. inHg/hPa
13. Relative pressure setting 14. Forecast sensitivity
B. LCD Contrast Setting
1. Press and hold the “SET”button for five seconds.
Radio-controlled
time
WWVB Reception
Indicator
Date Display
Comfort Icon
Indoor Temperature
Humidity Display
Air Pressure Trend
Indicator
Forecast Icon
Barometric Air
Pressure
12-hour Air
Pressure History
Outdoor
Temperature Display Remote Sensor
Number (Up to 3
Total)
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2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “OUT/+” button to select the desired LCD
contrast setting.
4. Press and release the “SET” button to confirm the LCD contrast
setting and continue to theTime Zone setting.
C. Time Zone Setting
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET” button once more to advance to the
Time Zone setting.
4. A number will flash to the left of the letter “h”at the top of the display
just below the time display.
5. Press and release the “OUT+” button to select the desired time
zone.
6. Press and release the “SET”button to confirm the Time Zone set-
ting and continue to the DST ON/OFF setting.
D. DST ON/OFF Setting
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button twice more to advance to the
DST ON/OFF setting.
4. “DST” will appear above the indoor temperature/humidity display
and “ON”or “OFF”will flash above that.
5. Press and release the “OUT/+”button to select DST ON/OFF.
Note: Some locations (Arizona and parts of Indiana) do not follow
Daylight Saving Time.
6. Press and release the “SET” button to confirm the DST ON/OFF
setting and continue to the Radio-controlledTime ON/OFF setting.
E. Radio-controlled Time ON/OFF Setting
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button three more times to advance to
the Radio-controlled time ON/OFF setting.
4. “RCC” will appear above the indoor temperature/humidity display
and “ON”or “OFF”will flash above that.
5. Press and release the “OUT/+” button to select Radio-controlled
time ON/OFF setting.
6. Press and release the “SET”button to confirm the Radio-controlled
time ON/OFF setting and continue to the 12/24-hour Time Mode
setting.
F. 12/24-hour Time Mode
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button four more times to advance to
the 12/24-hour time mode setting.
4. “12h” or “24h” will flash above the indoor temperature/humidity
display.
5. Press and release the “OUT/+”button to select 12 or 24-hour time
mode.
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Note: In 12h mode “PM”will appear to the left of the time during PM
hours. If the time is not within the PM hours nothing will be displayed.
Be sure to set the time to the correct AM/PM time to ensure automatic
reception.
6. Press and release the “SET”button to confirm the 12/24-hour time
mode setting and continue to the Hour setting
G. Setting The Hour Manually
The WWVB signal will override any manual set time and date
information.The time will be based on the time zone selected.
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button five more times to advance to
the Manual Hour setting.
4. The hour will begin to flash at the top of the display.
5. Press and release the “OUT/+”button to select the desired hour.
6. Press and release the “SET”button to confirm the hour setting and
continue to the Minute setting.
H. SettingThe Minutes Manually
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET” button six more times to advance to
the Manual Minutes setting.
4. The minutes will begin to flash at the top of the display.
5. Press and release the “OUT/+”button to select the desired minutes.
6. Press and release the “SET” button to confirm the minutes and
continue to theYear setting.
I. SettingTheYear Manually
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button seven more times to advance
to the ManualYear setting.
4. The year will begin to flash below the time display.
5. Press and release the “OUT/+”button to select the desired year.
6. Press and release the “SET” button to confirm the year and con-
tinue to the Month setting.
J. SettingThe Month Manually
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button eight more times to advance to
the Manual Month setting.
4. The Month will begin to flash below the time display.
5. Press and release the “OUT/+”button to select the desired month.
6. Press and release the “SET”button to confirm the month and con-
tinue to the Date setting.
K. SettingThe Date Manually
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button nine more times to advance to
the Manual Date setting.
4. The date will begin to flash below the time display.
5. Press and release the “OUT/+”button to select the desired date.
6. Press and release the “SET” button to confirm the date and con-
tinue to the Temperature Measuring Units setting.
L.Temperature Measuring Units Selection (˚F or ˚C)
1. Press and hold the “SET”button for five seconds.
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2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET” button ten more times to advance to
the Temperature Measuring Units setting.
4. ˚F or ˚C will flash at the top of the display.
5. Press and release the “OUT/+” button to select the desired tem-
perature-measuring unit.
6. Press and release the “SET” button to confirm the temperature-
measuring unit and continue to the Air Pressure Measuring Units
setting.
M. Air Pressure Measuring Units Selection (inHg/hPa)
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button eleven more times to advance
to the Air Pressure Measuring Units setting.
4. inHg or hPa will flash at the top of the display.
5. Press and release the “OUT/+”button to select the desired air pres-
sure-measuring unit.
6. Press and release the “SET” button to confirm the air pressure-
measuring unit and continue to the Relative Pressure setting.
N. Relative Pressure Setting
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button twelve more times to advance
to the Relative Pressure setting.
4. The barometric air pressure will flash in the middle of the display,
just below the forecast icon
5. Press and release the “OUT/+”or “IN” button to select the desired
air pressure-measuring unit.
6. Press and release the “SET”button to confirm the relative pressure
setting and continue to the Forecast Sensitivity setting.
O. Forecast Sensitivity Setting
1. Press and hold the “SET”button for five seconds.
2. “lcd” will appear at the top of the display and a number will flash
next to it.
3. Press and release the “SET”button thirteen more times to advance
to the Forecast sensitivity setting.
4. The two air pressure tendency arrows will begin flashing on either
side of the forecast icon and a flashing number will appear under
the forecast icon.
5. Press and release the “OUT/+”button to select the desired forecast
sensitivity setting.
Note: Barometric air pressure is usually reported as “relative air
pressure”.This reading is based on the combination of absolute air
pressure and altitude.In general, an increase in altitude will result in a
decrease in air pressure. Relative air pressure will make readings in
nearby locations relative to each other to allow for proper forecasting.
The absolute air pressure reading in the Weather Center cannot be
calibrated, only the relative air pressure.
6. Press and release the “SET”button to confirm the forecast sensi-
tivity setting.
THE MANUAL SETTING IS NOW COMPLETED
FEATURES AND OPERATIONS
A. Minimum and MaximumTemperature and Humidity
1. Indoor Minimum and MaximumTemperature and Humidity
The indoor weather station automatically stores the minimum and
maximum indoor temperature and humidity. The minimum and maxi-
mum values are updated automatically when a new minimum or maxi-
mum is recorded, or until manually reset.
a. From the normal display mode, press and release the “IN”key
once to view the indoor maximum temperature and humidity
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(“MAX” will be displayed above the indoor temperature and
humidity).
b. Press and release the “IN” key again to view the indoor mini-
mum temperature and humidity.
c. Press and release the “IN” key again to return to the normal
mode (timeout of viewing minimum/maximum values will occur
if no keys are pressed for fifteen seconds).
Note: To reset the indoor minimum and maximum temperature and
humidity, first display the values you wish to reset (minimum or
maximum). Next press and hold the “SET” key for at least three
seconds. You will see then that the values will reset to the current
temperature and humidity and corresponding time.
2. Outdoor Minimum and MaximumTemperature
The indoor weather station automatically stores the minimum and
maximum outdoor temperature.The minimum and maximum values
are updated automatically when a new minimum or maximum is
recorded, or until manually reset.
a. From the normal display mode, press and release the “OUT/+”
key once to view the outdoor maximum temperature (“MAX”will
be displayed above the outdoor temperature).
b. Press and release the “OUT/+” key again to view the outdoor
minimum temperature.
c. Press and release the “OUT/+”key again to return to the normal
mode (timeout of viewing minimum/maximum values will occur
if no keys are pressed for fifteen seconds).
Note: To reset the outdoor minimum and maximum temperature, first
display the values you wish to reset (minimum or maximum). Next
press and hold the “SET”key for at least three seconds. You will see
then that the values will reset to the current temperature and corre-
sponding time.
B. Multiple RemoteTemperature Sensors
The WS-7394U is able to receive signals from 3 different remote
sensors.These extra remote sensors can be purchased through the
same dealer as this unit. A TX4U will monitor the temperature and
humidity, a TX3U will monitor temperature and display the tempera-
ture on its LCD, a TX3UP will monitor the temperature via a probe for
measuring soil or water temperatures and a TX6U will monitor the
temperature only.
Note: When setting up multiple units it is important to insert batteries
first into all the remote sensors, and in numeric sequence. Second
install batteries into the indoor weather station. Transmission prob-
lems will arise if this is not done correctly and if the total time for set-up
exceeds 6 minutes
1. Set Up of Multiple Units
a. It is necessary to remove the batteries from all units currently in
operation.
b. Remove the battery covers to all remote sensors.
c. Place all remote sensors in a numeric sequential order.
d. In sequential order, install batteries following the same battery in-
stallation procedures seen in Detailed Set-Up Guide section of this
manual.
e. Install batteries into the indoor weather station.
f. Follow the Detailed Set-Up Guide for programming and operating
instructions.
2. Viewing and Operating with Multiple Remote Sensors
a. To view the temperature of a different remote sensor press and
release the “CH” button. A shift from one “boxed” number to the
next should be observed in the OUTDOOR LCD.
b. The minimum and maximum temperature of the additional remote
sensor can be displayed by pressing the “OUT/+”button.
c. To reset the minimum and maximum temperature readings press
and hold the “SET”button for 3 seconds and that temperature record
for that remote sensor will be reset only.
Each remote sensor will have its own minimum and maximum values
stored.
C. Comfort Indicator for IndoorTemperature and Humidity
1. The comfort level indicator appears inbetween the indoor
tempearture and humidity.
2. The indicator will display a “happy-face” when the temperature is
between 68˚F and 79˚F (20˚C and 25.9˚C), and the humidity is
between 45% and 64%.
3. A “sad-face” will be displayed when the temperature and humidity
are outside the mentioned ranges.
D. Weather Forecast Icon and PressureTrend Indicators
The weather forecasting feature is estimated to be 75% accurate, and
is based solely upon the change of air pressure over time. The WS-
7394U averages past air-pressure readings to provide an accurate
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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 affected by the change of air pressure,
this feature will be less accurate.
1. Weather Icons
a. There are 3 possible weather icons that will be displayed at various
times in the center of the indoor weather station.
iSunny-indicates that the weather is expected to improve (not
that the weather will be sunny).
ii Sun with Clouds-indicates that the weather is expected to be
fair (not that the weather will be sunny with clouds).
iii Clouds with Rain-indicates that the weather is expected to get
worse (not that the weather will be rainy).
b. The weather icons change when the unit detects a change in air
pressure.
c. The icons change in order, from “sunny” to “sun with clouds” to
“clouds with rain” or the reverse.
d. It will not change from “sunny”directly to “clouds with rain”, although
it is possible for the change to occur quickly.
e. If the symbols do not change, the weather has not changed (or the
change has been slow and gradual).
f. The sensitivity of the change in foreacst icon is set by the user in
section F of the Detailed Set Up Guide.
E. WeatherTendency Arrows
1. Along with the forecast icon there is a pressure tendency arrow.
2. There is one that points up (on the left side of the LCD) and one
that points down (on the right side of the LCD).
3. These arrows reflect current changes in the air pressure.
4. An arrow pointing up indicates that the air pressure is increasing
and the weather is expected to improve or remain good.
5. An arrow pointing down indicates that the air pressure is decreas-
ing and the weather is expected to become worse or remain poor.
6. No arrow means the pressure is stable.
Pressure trend arrow
7. A storm can be expected if there is a drop of 4 hPa or more in less
than 6 hours. The clouds with rain icon will be displayed and the
tendency arrow that points down will be flashing-indicating the storm
warning feature has been activated. The flashing will stop when
the air pressure stabilizes or begins to rise.
F. Barometric Air Pressure Reading
1. The actual barometric air pressure is displayed directly under the
weather forecast icon
2. The relative air pressure is calibrated by the user through the pro-
gramming mode.
3. Please Follow the programming instructions in section F of the De-
tailed Set Up Guide to set this feature.
G. Air Pressure History Bar Chart
1. The bar graph shows in hPa (Hekto Pascal) the recorded air pres-
sure over the past 12-hours.
2. The horizontal axis shows the hours at increments of -12 hours, -9
hours, -6 hours, -3 hours, and 0 hours (current).
3. The vertical axis is set by hPa: the “0” on this axis represents the
current hPa, and + or - 1,3,5, or 7 shows (in hPa) how high or low
the past air pressure was as compared to the current one.
4. The “0”on the vertical axis indicates the current air pressure value.
5. The “0h”on the horizontal axis indicates the current hour, thus the
current air pressure also.
6. Each bar on the bar graph represents a value of 0.03 hPa, and
each bar also has a corresponding value on the verticle axis.
7. Air pressure trends can be determined by simply glancing at the
bar graph.
a. If the bars are rising (higher on the right than the left) then the
air pressure has a rising trend, and the weather should improve.
b. If the bars are dropping (lower on the right than the left) then the
air pressure has a falling trend, and the weather should worsen.
8. Multiply the two values to find past air pressure (note the + or - sign
of values on the verticle axis); i.e. 0.03 hPa x 3 = 0.09 hPa, now
add this value to the air pressure (in LCD 4) to evaluate what past
air pressures have been.
9. The bar chart will constantly scroll to avoid burnout of the LCD.
Note: This feature cannot be turned off.
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