La Crosse Technology WT-5431 User Manual

WT-5431
433 MHz

Radio Controlled Projection Alarm

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 5-6
Program Mode
Programming Sequence 6
Function Buttons 6
Time Zone Setting 6-7
DST (Daylight Saving Time) Setting 7
Adjustable Snooze 7
Time Setting 7-8
Date Setting 8
12/24-Hour Setting/Selecting °F or °C

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Features & Operations
Features 9
Radio-Controlled Time 9
Projection 10
EL Backlight 10
Indoor Temperature 10-11
Remote Temperature 11
Time Alarm 11-12
Changing Display Mode (viewing seconds ) 12
Mounting 13
Maintenance & Care 13
Troubleshooting 15
Specifications 16
Warranty and Contact Information 17

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INVENTORY OF CONTENTS

1) WT-5431 Alarm Clock

2) TX6U Remote temperature sensor

3) AC adapter/transformer (6V)

4) Instruction manual and warranty card.

ADDITIONAL EQUIPMENT (not included)

1) Three fresh 1.5V AA batteries (optional for alarm clock)

2) Two fresh 1.5V AA batteries (for remote sensor)

FEATURES OF PROJECTION ALARM

Operation of these features is in section III.

1. Radio-controlled time and date

2. Projection of time and/or remote temperature

3. EL backlight

4. Six modes of date/seconds/temperature display

5. Indoor temperature

6. Remote outdoor temperature

7. Dual alarms

8. Adjustable snooze

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 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 projection alarm.
However, due to the nature of the Earth’s Ionosphere, reception is very limited during
daylight hours. The projection alarm will search for a signal every night when reception
is best.

The WWVB radio station receives the time data 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 Cesium­133 atom in a vacuum. For more detail, visit http://www.boulder.nist.gov/timefreq.htm.
To listen to the NIST time, call [phone]. This number will connect you to an
automated time, announced at the top of the minute in “Coordinated Universal Time”,
which is also known as Greenwich Mean Time (GMT). This time does not follow
Daylight Saving Time changes. After the top of the minute, a tone will sound for every
second. It is possible that your projection alarm may not be exactly on the second due to
the variance in the quartz. However, the clock will adjust the quartz timing over the
course of several days to be very accurate; under 0.10 seconds per day.

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QUICK SET-UP GUIDE
Hint: Use good quality Alkaline Batteries and avoid rechargeable batteries.

1. Have the indoor station and outdoor remote 3 to 5 apart.

2. Batteries should be out of both units for 10 m i nut es.

3. Place the batteries into the outdoor remote first then into the indoor station.

(All outdoor remotes must be started before the indoor station)

4. DO NOT PRESS ANY BUTTONS FOR 10 MINUTES.

In this time the display and sensor will start to talk to each other and the display will
show both the indoor temperature and an outdoor temperature. If the station does not
display both temperatures after the 10 minutes please retry the set up as stated above.
After both indoor and outdoor temperatures are displayed for 10 minutes you can place
your sensor outdoors and set your time.

The remote sensor should be placed in a dry, shade d area. The rem ote sensor has a range
of 80 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 80 ft. in
a straight line.

NOTE: Fog and mist will not harm your remote sensor but direct rain must be avoided.

To complete the set up of your temperature station after the 10 minutes have passed
please follow the steps on page 7.

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B

DETAILED SET-UP GUIDE
Important: Insert batteries into the sensor first, then into the alarm clock. Do not
press any buttons until remote temperature is displayed.

II. BATTERY INSTALLATION

A. REMOTE TEMPERATURE SENSOR

1. Remove the battery cover. Observing the correct

polarity, install 2 AA batteries. The batteries will
fit tightly (to avoid start-up problems make sure

attery

Cover

that they do not spring free during installation).

2. Replace the battery cover.

B. PROJECTION ALARM

1. Remove the battery cover.

2. Observe the correct polarity,

and install 3 AA batteries.

3. In addition or instead of

inserting batteries, the AC
adapter can be used. Simply
plug the adapter into the
receptacle on the underneath of the alarm clock and then plug in adapter.

4. Replace the battery cover.

5. The projector will activate and remain on if the alarm clock is plugged in. If

only batteries are used, the projector will only be activated when a button is
pressed. The projection is a red light, not harmful under normal usage,
although care should be taken to not look directly into the light.

Note:

After the batteries have been installed a tone will sound, and the LCD
(Liquid Crystal Display) will activate. The indoor temperature and the
remote temperature will be displayed (within three minutes). Also , the time
will appear as “-:--”. The WWVB search is automatically initiated, and a
tower icon appears and flashes with the time colon (no tower icon will
appear if the WWVB is too weak to be detected, and the time display will
remain on “-:--”). While the WWVB search is being conducted various
numbers will appear in the time display. After 10 minutes, the projection
alarm will either display the WWVB time, or discontinue the search if the
time is not found. If the search is cancelled “-:--” will remain in the time
LCD. The projection alarm will conduct a WWVB search every hour until
the first signal is found. Once the WWVB time is found, a search is
automatically conducted nightly at midnight. If the signal is found at
midnight, the tower icon will remain, if not, another search will take plac e
every hour (until 6:00 am) until the signal is found successfully. If no signal

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is found during this period, the tower icon will not appear and the clock will
search again at 12:00 am the next night.

6. Either wait for the WWVB reception or manually set the time and date,

making sure to set the correct time zone.

III. PROGRAM MODE

To enter the Program Mode hold down the “SET” button for 1 second, until the time
zone (“-5” default) flashes in the lower left. Press the “SNOOZE” button at any
time to exit the Program Mode, or wait approximately 15 seconds for the projection
alarm to automatically return to normal operation.

A. PROGRAMMING SEQUENCE

1. Time Zone Setting

2. Daylight Saving Time ON/OFF

3. Adjustable Snooze

4. Hour Setting

5. Minute Setting

6. Year Setting

7. Month Setting

8. Date Setting

9. Day Setting

10. 12/24-hour Mode

B. FUNCTION BUTTONS

There are 7 function buttons located on the front of the projection alarm and one
on the top. The function buttons are labeled: ALM1/HOUR, ALM2/MIN, light
intensity icon, DISPL, light direction icon, SET, MODE/+, and SNOOZE (the
top bar).

C. TIME ZONE SETTING

1. Hold down the “SET” button for 1 second, the time zone (“-5” default) will

flash in the Date LCD.

2. Press and release the “+” button to select the appropriate time zone. There

are 13 time zones to choose from (based relative to the international time
standard of GMT (“Greenwich Mean Time).

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