La Crosse Technology WT-5720 Manuel utilisateur

WT-5720

Radio Controlled Projection Alarm

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

Programming Sequence 6

Function Buttons 6

Time Zone Setting 6-7

DST (Daylight Saving Time) Setting 7

Adjustable Snooze 7-8

Time Setting 8

Date Setting 8

12/24-Hour Setting 9

Selecting °F or °C 9

Features & Operations

Features 10

Radio-Controlled Time 10

Projection 11

LCD light 11

Indoor Temperature 11

Time Alarm 12

Changing Display Mode (viewing seconds) 13

Maintenance & Care 14

Troubleshooting 15

Specifications 16

Warranty and Contact Information 17-18

INVENTORY OF CONTENTS

1) WT-5720 projection alarm

2) AC adapter/transformer

3) Instruction manual and warranty card.

ADDITIONAL EQUIPMENT (not included)

1) Two fresh 1.5V AA batteries (optional for projection alarm)

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 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 about WWVB please see the NIST

website at http://www.boulder.nist.gov/timefreq/stations/wwvb.htm

QUICK SET-UP GUIDE

1) Insert two AA batteries into the projection alarm and/or plug into wall.

Note: Do not press any buttons until the WWVB time signal is received or

reception errors may occur.

2) Wait 10 minutes for WWVB reception.

3) If there is no WWVB reception manually set the time and date (instructions

in the Program Mode).

4) Program the settings.

5) Mount the WT-5720 in a suitable location, where WWVB signal can be

received.

6) 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.

7) See the “Features” section III for instructions on projection direction, etc.

DETAILED SET-UP GUIDE

I. BATTERY INSTALLATION

A. Projection Alarm

1. Remove the battery cover.

2. Observe the correct polarity, and install 2 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 U.S.

map will be displayed and 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 appear. If not, another

search will take place every hour (until 6:00 am) until the signal is received

successfully. If no signal is found during this period, the tower icon will not

appear and the clock will search again at 12:00 am the next night.

AC adapter

receptacle

II. 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 right. The program mode guide is laid out in

a manner that allows you to program each function separately, or you can follow the

instructions entirely to program the projection alarm. Complete programming is

usually done for the initial set-up, and will require you to skip to step 4 of

programming sections “D” through “H”. Press and release 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 6 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, light

direction icon, “SET”, “MODE/+”,

and “SNOOZE” (the top bar).

C. Time Zone Setting

1. Hold down the “SET” button for 1 second.

2. The default (factory set) time zone (“-5”) will flash in the Date LCD.

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

4. There are 13 time zones to choose from, based relative to the international

time standard of GMT (“Greenwich Mean Time).

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5. From –5h to –8h a US map with the highlighted time zone will also be

displayed to the right of the time display.

6. Press and release the “SET” button to confirm the time zone setting and to

advance to DST (Daylight saving time) setting.

D. DST (Daylight Saving Time) Setting

Note: The DST default is “On”, meaning that the WWVB will automatically change

the time according to Daylight Saving Time in the spring and fall. For areas that do

not recognize DST changes (Arizona and parts of Indiana) turn the DST “OFF”.

1. Hold down the “SET” button for 1 second.

2. The selected time zone will flash.

3. Press and release the “SET” button once more until “On” flashes in the

lower right and “DST” flashes in the upper right.

4. Press and release the “+” button to turn the DST off, as will be indicated by

the display of “OFF” in the time LCD.

5. Press and release the “SET” button to confirm the DST setting and to

advance to select the length of the snooze.

E. Adjustable Snooze Time

Note: The snooze length can be adjusted from 1 minute to 59 minutes. This duration

refers to the length of time the alarm will be disabled when the “SNOOZE” bar is

pressed. If set to “0”, activating the snooze will turn off the alarm for 24 hours.

1. Hold down the “SET” button for 1 second.

2. The selected time zone will flash.

3. Press and release the “SET” button 2 times until “Sno” appears in the lower

right and duration (“:10” default) flashes in the time LCD.

4. Press and release the “+” button to advance the snooze time from 0 (off ) to

59 minutes.

-4h Atlantic Time

-5h Eastern Time (default setting)

-6h Central Time

-7h Mountain Time

-8h Pacific Time

-9h Alaskan Time

-10h Hawaiian Time

-11h, -12h Next two time zones West of HAW

0h Greenwich Mean Time

-1h, -2h, -3h Three time zones West of GMT

5. Press and release the “SET” button to confirm the snooze setting and to

advance to manually set the time.

F. Time Setting

Note: When the WWVB signal is found, that time will over-ride the manually set

time.

1. Hold down the “SET” button for 1 second.

2. The selected time zone will flash).

3. Press and release the “SET” button 3 times until the hour flashes in the time

LCD.

4. Press and release the “+” button to select the hour.

Note: when setting the hour, “PM” will appear to the left of the hour display, if

it is AM nothing will be displayed.

5. Press and release the “SET” button to confirm the hour setting and to shift

to select the minutes.

6. Press and release the “+” button to select the minutes.

7. Press and release the “SET” button to confirm the time setting and to

advance to manually set the date.

G. Date Setting

Note: When the WWVB signal is found, that date will over-ride the manually set

date.

1. Hold down the “SET” button for 1 second.

2. The selected time zone will flash

3. Press and release the “SET” button 5 times until the year flashes in the date

LCD.

4. Press and release the “+” button to select the year.

5. Press and release the “SET” button to confirm the year and to set the

month.

6. The month will flash.

7. Press and release the “+” button to select the appropriate month.

8. Press and release the “SET” button to confirm the month and to set the date.

9. The date will flash.

10. Press and release the “+” button to select the appropriate date.

11. Press and release the “SET” button to confirm the date and to set the

weekday.

12. The weekday will flash.

13. Press and release the “+” button to select the appropriate weekday.

14. Press and release the “SET” button to confirm the calendar settings and to

advance to select either 12 or 24-hour time display.

H. 12/24-Hour Setting

Note: Setting to the 24-hour mode (also known as Military Time) will also change

the temperature to display in

C instead of

1. Hold down the “SET” button for 1 second.

2. The selected time zone will flash.

3. Press and release the “SET” button 9 times until the “12” hour time display

flashes in the time LCD.

4. Press and release the “+” button to toggle between 12 and 24 hour time.

5. Press and release the “SET” button to confirm the 12/24-hour time display

and to return to normal operation.

I. Selecting °F or °C

The temperature is displayed in °F or °C, depending on the time format (12 or

24 hour mode). When in 12-hour format the temperature will be in °F. When in

24-hour mode the temperature will be in °C.

FEATURES & OPERATIONS

A. Features

1. Radio-controlled time and date

2. Projection of time

3. LCD light

4. Six modes of date/seconds/temperature display

5. Indoor temperature

6. Remote temperature

7. Dual alarms

8. Adjustable snooze

B. Radio-Controlled Time and Date

1. The projection alarm will automatically search for the time signal upon initial

set-up and every night.

2. When the signal is being received, there will be a “tower” icon flashing to the

right of the time display.

3. When the time signal has been received successfully, the tower icon will remain

steady until midnight.

4. 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.

5. 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.

6. 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 Cesium-133 atom in a vacuum.

7. For more detail, visit http://www.boulder.nist.gov/timefreq.htm. To listen to the

NIST time, call (303) 499-7111. 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.

8. 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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