La Crosse WS-7394U-IT User Manual

WS-7394U-IT

Wireless 915 MHz

Wireless Weather Station

Instruction Manual

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 9-10 12/24-hour Time Mode Setting 10 Setting the Time/Date Manually 10-11 Temperature Measuring Units (ºF/ºC) 12 Air Pressure Measuring Units (inHg/hPa) 12 Relative Pressure Setting 12

Forecast Sensitivity Setting 13 Features and Operation

Minimum/Maximum Temperature/Humidity 14 Multiple Remote Temperature/Humidity Sensors 15-16 Comfort Icon 16 Weather Forecast and Pressure Trend Indicators 16 Weather Icons 16-17 Weather Tendency Arrows 17 Barometric Air Pressure Reading 17 Air Pressure History Bar Chart 17-18

Mounting Maintenance and Care Troubleshooting Guide Specifications Warranty Information

19-20

20 21 22

23-24

This product offers:

INSTANT TRANSMISSION is the stateof-the-art new wireless transmission technology, exclusively designed and developed by LA CROSSE TECHNOLOGY. INSTANT TRANSMISSION offers you an immediate update (every 4 seconds!) of all your outdoor data measured from the sensors: follow your climatic variations in real-time!

INVENTORY OF CONTENTS

1. WS-7394U-IT— Wireless Weather Station (Figure 1)

2. TX29U-IT—remote temperature sensor (figure 2)

3. Instruction manual and warranty card

Mounting Bracket

TX29U-IT remote temperature sensor

Figure 2

Figure 1

ADDITIONAL EQUIPMENT (not included)

1. Five fresh AA 1.5V alkaline batteries.

2. One wall-mounting screw (optional)

ABOUT WWVB (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 Wireless Weather Station. However, due to the nature of the Earth’s Ionosphere, reception is very limited during daylight hours. The Wireless 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 continually measure every second of every day to an accuracy of ten billionths of a second a 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 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 feet apart.

2. Batteries should be out of both units for 10 minutes.

3. Place the batteries into the remote temperature sensor first then

Weather Station

(All remote temperature sensors must be started before the

Station

4. DO NOT PRESS ANY BUTTONS FOR 15 MINUTES.

In this time the talk to each other and the display will show both the indoor temperature and humidity, and

an outdoor temperature. If the temperatures after the 15 minutes please retry the set up as stated above. After both indoor and outdoor temperatures are displayed for 15 minutes you can place your remote temperature sensor outdoor and set your time.

The remote temperature sensor should be placed in a dry, shaded area. The temperature sensor has a range of 330 feet. Keep in mind that the 330 feet is in open air with no obstructions and that radio waves DO NOT curve around objects. Actual transmission range will vary depending on what is in the path of the signal. Each obstruction (roof, walls, floors, ceilings, thick trees, etc.) will effectively cut signal range in half.

Example: A wall, so that the signal has to pass through one interior wall, one exterior wall, and across the 10 feet width of the room between the 2 walls. The first wall will reduce the range to 165 feet, and the second wall will reduce the range to 87 feet. Factoring in the 10 foot room, this leaves a maximum of 77 feet of remaining signal range.

This allowance is typically enough for a frame wall with non-metallic siding; however certain materials can reduce range even further. Metal siding, stucco, and some types of glass can reduce signal range by as much as ¾ or more, compared to the ½ reduction typical of most obstructions. It is possible to receive a signal through these materials, however maximum range will be much less due to their tendency to absorb or reflect a much larger portion of the sensor’s signal.

Wireless Weather Station

)

Wireless Weather Station

and remote temperature sensor 3 to 5

Wireless

Wireless Weather

and remote temperature sensor will start to

does not display both

with a 330 feet range is mounted on an interior

DETAILED SET-UP GUIDE

I. BATTERY INSTALLATION (When one temperature sensor is being used)

1. First, insert the batteries to the temperature sensor (see “A. Remote Temperature Sensor” below).

2. Within 2 minutes of powering up the sensor, insert the batteries to the Weather Station (see “B. Wireless Weather Station” below). Once the batteries are in place, all segments of the LCD will light up briefly. Following the indoor temperature and humidity, and the time as 12:00 will be displayed. If they are not shown in LCD after 60 seconds, remove the 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 sensor. The outdoor temperature 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 and the signal reception icon is no longer shown.

A. Remote Temperature 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. Wireless Weather 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 information from the TX29U-IT sensor, no data will be received from that sensor until reset.

4. Replace the battery cover.

Battery Cover

Sensor signal reception icon*

* When the signal is successfully received by the Weather Station, the icon will be switched on. (If not successful, the icon will not be shown in LCD) So the user can easily see whether the last reception was successful (icon on) or not (icon off). On the other hand, the short blinking of the icon shows that a reception is being done now.

• If the signal reception is not successful on the first frequency (915MHz) for 45 seconds, the frequency is changed to 920MHz and the learning is tried another 45 seconds. If still not successful the reception is tried for 45 seconds on 910MHz. This will also be done for re-synchronization.

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 “SA.1” as the default date (2006 as the year).

3. The indoor temperature and humidity, and barometric air pressure

(as 29.92 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 temperature 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 Wireless 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 Wireless Weather Station requires five full minutes of good reception 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. Next reception will take place the next day.

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 Wireless Weather Station n in

a window facing Colorado, at least six feet from any electrical source (computers, televisions, refrigerators, etc.). Do not move the indoor 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.

Once the time and date are set, the Wireless Weather Station will conduct a search every night at midnight and correct to the accurate time and date (Daylight Saving Time is automatic). If the signal has been received in the past 24 hours, the reception indicator will be displayed. After a successful reception, no more reception attempt would be made until the following day.

III. Explanation of LCD Information

A. The below picture highlights the LCD features.

WWVB Reception Indicator

Date Display

Comfort Icon Indoor Temperature

Humidity Display

Air Pressure Trend

Forecast Icon

Barometric Air Pressure

12-hour Air Pressure History

Outdoor Temperature Display

Satellite icon (indicates outdoor transmission)

Radio-controlled time

Remote Sensor Number (Up to 3 Total

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 programming

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 p rog ram the Wireless Weather Station. 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-second time-out to take effect.

A. Overview of programming mode sequence

1. LCD Contrast 2. Time Zone 3. DST ON/OFF

4. Radio-controlled

Time ON/OFF

5. 12/24-hour

time mode

6. Hour

7. Minute 8. Year 9. Month

10. Date

13. Relative pressure

setting

11. °F/°C

14. Forecast

sensitivity

12. inHg/hPa

B. LCD Contrast 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 “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 the Time 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

setting 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-controlled Time 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-hou r 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 12/24hour 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.

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. Setting The 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 the Year setting.

I. Setting The Year 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 Manual Year 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

continue to the Month setting.

J. Setting The 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

continue to the Date setting.

K. Setting The 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

continue to the Temperature Measuring Units setting.

L. Temperature Measuring Units Selection (°F or °C)

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 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

temperature-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

pressure-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

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 relative air pressure value.

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

sensitivity setting.

THE MANUAL SETTING IS NOW COMPLETED

FEATURES AND OPERATIONS

A. Minimum and Maximum Temperature and Humidity

1. Indoor Minimum and Maximum Temperature and Humidity

The indoor weather station automatically stores the minimum and maximum indoor temperature and humi dity. 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 “IN” key

once to view the indoor maximum temperat ure and humidity (“MAX” will be displayed above the indoor temperature and humidity).

b. Press and release the “IN” key again to view the indoor

minimum 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 temperatur e 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 Maximum Temperature

The indoor weather station automatically stores the minimum and maximum outdoor t emperature. 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).

To reset th e outdoor minimum and maximum temperature,

Note:

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 corresponding time.

B. Multiple Remote Temperature Sensors

The WS-7394U-IT is able to receive signals from 2 additional temperature sensors. The following are instructions for the set-up of temperature sensor units with the WS-7394U-IT. These extra sensors can be purchased through the same dealer as this unit.

1. Remove all the batteries from the receiver and sensor(s) and wait 60 seconds. During these 60 seconds, press any button 20 times to discharge any excess power.

2. Insert the batteries to the first temperature sensor.

3. Within 2 minutes of powering up the first sensor, insert the batteries to the Weather Station. Once the batteries are in place, all segments of the LCD will light up briefly. Following the indoor temperature and humidity, and the time as 12:00 will be displayed. If they are not shown in LCD after 60 seconds, remove the batteries and wait for at least 60 seconds before reinserting them.

4. The outdoor temperature from the first sensor (channel 1) should then be displayed on the Weather Station. If this does not happen and the signal reception icon is not shown, after 2 minutes, the batteries will need to be removed from both units and reset from step 1.

5. Insert the batteries to the second sensor as soon as the outdoor temperature readings from the first sensor are displayed on the Weather Station.

NOTE: You must insert the batteries into the second sensor within 10 seconds of reception of the first sensor.

6. The outdoor temperature from the second sensor and the "channel 2" icon should then be displayed on the Weather Station. If this does not happen after 2 minute, the batteries will need to be removed from all the units and reset from step 1.

7. Insert the batteries to the third sensor 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 sensor will be displayed and the channel icon will shift back to "1" once the third sensor is successfully

IMPORTANT: Transmission problems will arise if the setting for multiple sensors is

received. If this is not happen, user shall restart the setting up from step 1.

NOTE: You must insert the batteries into the third sensor within 10 seconds of reception of the second sensor.

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.

C. 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 t emperature 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.

D. Comfort Indicator for Indoor Temperature 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 65%.

3. A “sad-face” will be displayed when the temperature and humidity are outside the mentioned ranges.

E. Weather Forecast Icon and Pressure Trend Indicators

The weather forecasting feature is estimated to be 75% accurate, and is based solely upon the change of air pressure over time. The WS7394U-IT 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 affected by the change of air pressure, this feature will be less accurate.

1. Weather Icons

There are 3 possible weather icons that will be displayed at various times in the center of the indoor weather station.

a. Sunny—indicates that the weather is expected to improve

(not that the weather will be sunny).

b. Sun with Clouds—indicates that the weather is expected to

be fair (not that the weather will be sunny with clouds).

c. Clouds with Rain—indicates that the weather is expected

to get worse (not that the weather will be rainy).

1. The weather icons change when the unit detects a change in air pressure.

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