La Crosse Technology Clock WT 8005U User Manual

WT-8005U  
Atomic Digital Wall Clock  
by La Crosse Technology®  
La Crosse Technology, Ltd.  
2809 Losey Blvd. S.  
La Crosse, WI 54601  
Phone 608-782-1610  
Page 1 of 12  
 
Congratulations  
You have purchased an atomic digital wall clock  
from La Crosse Technology®, providing the  
world's most accurate time at a glance. Now  
you'll never need to worry about setting your  
clock again.  
Features:  
WWVB Radio controlled Clock (Atomic Clock)  
Time in 12/24 hour format  
Manual time setting option  
Time Zone setting:  
ƒ "P" - Pacific  
ƒ "M" - Mountain  
ƒ "C" - Central  
ƒ "E" - Eastern  
Continuous calendar up to year 2054  
Date and weekday displayed and set  
automatically with the time  
Temperature display in °F or °C  
Snooze function (5 minutes)  
Indoor Thermometer: Indoor measurement  
range:  
14.1° F 139.8° F (-9.9°C to 59.9°C)  
Battery: 2 X “AA” size 1.5V (not included)  
Important Information:  
Insert 2 new AA, LR6 1.5 volt ALKALINE  
batteries into the battery compartment  
according to the polarity marked on the case.  
When you insert the batteries all of the symbols  
on the display will briefly light up and you will  
hear a beep. The clock will then attempt to find  
the WWVB clock signal for up to seven  
minutes. The tower icon will flash on the LCD  
until the WWVB signal is found, at which point  
it will stop flashing and will display  
continuously.  
ƒ If the tower icon does not display  
continuously - even after seven minutes of  
searching - move the clock to another  
location and press the "WWVB SEARCH"  
key on the back of the clock to search again.  
Page 3 of 12  
 
You may need to move the clock away from  
sources of interference such as TV monitors  
or concrete walls.  
If the automatic setting process is  
unsuccessful, use a sharply pointed instrument  
to press the "Reset" button on the back of the  
clock.  
Manual time setting and other settings:  
Press and hold down the “SET” button for 2  
seconds, the 12/24 hour mode display starts to  
flash. Now use “” and ““buttons to set the  
correct 12/24 hour mode.  
Press “SET” to confirm your setting, the Hour  
display starts to flash. Now use “” and  
“buttons to set the correct hour.  
Press “SET” to confirm your setting, the Minute  
displays starts to flash. Now use “” and  
“buttons to set the correct minute.  
Press “SET” to confirm your setting, the Year  
display 2004 starts to flash. Now use “” and  
” buttons to set the correct year.  
Press SET to confirm your setting, the Month  
display starts to flash. Now use “” and “”  
buttons to set the correct month.  
Page 4 of 12  
 
Press “SET” to confirm your setting, the Date  
display starts to flash. Now use “” and ““  
buttons to set the correct date. Weekday will  
set itself if the clock has received the WWVB  
signal.  
Press “SET” to confirm your setting, the DST  
icon starts to flash. Now use “” and ““  
buttons to turn Daylight Saving Time on ("on")  
or off ("oF"). See "Daylight Saving Time"  
below for more information.  
Press “SET” to confirm your setting and to end  
the setting procedures, enter the clock mode.  
Daylight Saving Time  
The National Institute of Standards and  
Technology and WWVB encode a special DST  
“bit” in the WWVB transmission for DST.  
Your La Crosse Technology® clock will read  
this information (only if "DST" is set to "on" -)  
and automatically advance the time one hour in  
the spring and back an hour in the fall.  
Arizona: If you live in an area that does not  
recognize DST you must de-activate Daylight  
Saving Time by setting "DST" to "oF"  
Setting the Time Zone:  
Press the “” button to set the correct time  
zone. It will toggle the clock mode through the  
four available time zones in the Continental  
U.S. Above the seconds digits, the LCD display  
will indicate "P" for Pacific, "M" for Mountain,  
"C" for Central and "E" for Eastern.  
After 30 seconds without pressing any button,  
the clock switches automatically from set mode  
to normal time mode.  
Setting the Daily Alarms:  
To turn the alarm on, press the ALARM button.  
LCD displays the “” icon.  
Page 5 of 12  
 
To set the Alarm Time, press and hold down  
the ALARM button for 2 seconds until the hours  
digits flash. Use the “” and ““buttons to set  
the required hour. Press ALARM button to  
confirm your setting  
The Minute display of the Alarm time starts to  
flash. Use the “” and ““buttons to set the  
required minute. Press ALARM button to  
confirm your setting and to end the setting  
procedure.  
To activate or deactivate the daily alarms,  
briefly press the “ALARM” button once. When  
the alarm is active the clock displays the “”  
icon after the hour. When deactivated the  
alarm icon does not show.  
About the Daily Alarms:  
After 30 seconds without pressing any button  
the clock switches automatically from setting  
mode to Normal clock mode.  
The alarm will sound for 2 minutes if you do not  
deactivate it by pressing any button. In this  
case the alarm will be repeated automatically  
after 24 hours.  
Rising alarm sound changes the frequency 4  
times while the alarm signal is heard. This is  
known as a "Crescendo Alarm".  
Automatic Snooze function:  
While the alarm is sounding, press the  
SNOOZE button to activate the snooze  
function. The “” icon appears on the display.  
This operation moves the alarm back by 5  
minutes and the alarm will restart at this time.  
The Snooze function can be interrupted by  
pressing any button.  
Page 6 of 12  
 
°F/°C Temperature Display:  
The temperature is displayed either in °F or °C.  
Briefly pressing the ““button allows you to  
switch between the temperature modes.  
Reception of the WWVB Radio signal:  
The clock must receive the WWVB Radio  
Signal to automatically set the time, date and  
weekday.  
The clock automatically starts the WWVB  
signal search after 7 minutes of any restart or  
changing of new fresh batteries. The radio  
tower icon starts to flash.  
At 1:00 am, the clock automatically carries out  
the synchronization procedure with the WWVB  
signal to correct any deviations to the exact  
time. If this synchronization attempt is  
unsuccessful (the radio tower icon  
disappears from the display), the system will  
automatically attempt another synchronization  
at the next full one hour. This procedure is  
repeated automatically up to total 5 times.  
To start manual WWVB signal reception, press  
the “WWVB SEARCH“ button. If no signals  
received within 7 minutes, then the WWVB  
signal search stops (the radio tower icon  
disappears) and will start again at the next full  
one-hour.  
To cancel RC reception and stop searching for  
the WWVB radio signal, press the “WWVB  
SEARCH“ button once. The radio tower icon  
will disappear.  
About WWVB Radio Signal Reception:  
A flashing radio tower icon indicates that the  
WWVB signal reception has started.  
A continuously displayed radio tower icon  
indicates that the WWVB signal was received  
successfully during the last attempt. If the  
clock attempts to receive the WWVB signal and  
Page 7 of 12  
 
is unsuccessful, the tower icon will not be  
continuously displayed on the LCD.  
We recommend a minimum distance of 2.5  
meters (8 feet) to all sources of interference,  
such as televisions or computer monitors  
Radio reception is weaker in rooms with  
concrete walls (e.g.: in cellars) and in offices. In  
such environments, place the system close to  
the window.  
Online Resources  
Visit the WT-8005U page online at:  
Care and Maintenance  
Extreme temperatures, vibration and shock  
should be avoided as these may cause  
damage to the unit and give inaccurate  
readings.  
Precautions shall be taken when handling the  
batteries. Injuries, burns, or property damage  
may be resulted if the batteries are in contact  
with conducting materials, heat, corrosive  
materials or explosives. The batteries shall be  
taken out from the unit before the product is to  
be stored for a long period of time.  
Immediately remove all low powered batteries  
to avoid leakage and damage. Replace only  
with new batteries of the recommended type.  
When cleaning the display and casings, use a  
soft damp cloth only. Do not use solvents or  
scouring agents as they may mark the LCD  
and casings.  
Do not submerge the unit in water.  
Furthermore, fix all parts in place where the  
units are adequately protected against  
moisture and rain.  
Special care shall be taken when handling a  
damaged LCD display. The liquid crystals can  
be harmful to user's health.  
Page 8 of 12  
 
Do not make any repair attempts to the unit.  
Return them to their original point of purchase  
for repair by a qualified engineer. Opening and  
tampering with the unit may invalidate their  
guarantee.  
Never touch the exposed electronic circuit of  
the device as there is a danger of electric  
shock should it become exposed.  
Do not expose the units to extreme and sudden  
temperature changes, this may lead to reduce  
their accuracy.  
Batteries are the single largest cause of  
customer support cases. Please use plain  
Alkaline batteries testing no less than 1.48 on  
a voltmeter or with and expiration date 7 years  
in the future.  
Battery Replacement  
If you notice that the LCD appears faint or that  
WWVB time reception is not working properly,  
try a fresh set of batteries before contacting  
customer support.  
We recommend that you replace the  
batteries in all units regularly to  
ensure optimum accuracy of these  
units. Please see the battery life in  
the specifications below.  
Help us to keep our environment clean. Return  
used batteries to an authorized depot.  
Troubleshooting  
additional information on troubleshooting.  
If the clock receives a clear signal it will set itself  
perfectly.  
If it does not receive a signal consider the  
following:  
Battery - The La Crosse Technology® clock  
must have a fresh battery to receive and  
process the time signal.  
Page 9 of 12  
 
Location - Try a different location, ideally near  
a window. It should be at least six feet from  
computers, TVs, air conditioners, other Radio-  
Controlled clocks and other electrical  
appliances that cause interference.  
Weather - Electrical storms between you and  
Colorado during the night will interfere with the  
WWVB signal. Although we cannot control the  
weather we can help you predict it (see  
www.lacrossetechnology.com).  
Specifications  
Battery Life  
Up to 24 months  
Dimensions  
8.95” L x 7.20” W x 1.20” H  
Power Requirements  
NOTE: Rechargeable batteries are not  
recommended due to the wide variation in  
performance between brands and types.  
Please use only fresh Alkaline batteries.  
2 “AA” Alkaline Batteries (not included)  
Warranty Information  
La Crosse Technology, Ltd provides a 1-year  
limited warranty on this product against  
manufacturing defects in materials and  
workmanship.  
This limited warranty begins on the original date  
of purchase, is valid only on products purchased  
and used in North America and only to the  
original purchaser of this product. To receive  
warranty service, the purchaser must contact La  
Crosse Technology, Ltd for problem  
determination and service procedures. Warranty  
service can only be performed by a La Crosse  
Technology, Ltd authorized service center. The  
original dated bill of sale must be presented upon  
request as proof of purchase to La Crosse  
Technology, Ltd or La Crosse Technology, Ltd’s  
authorized service center.  
Page 10 of 12  
 
La Crosse Technology, Ltd will repair or replace  
this product, at our option and at no charge as  
stipulated herein, with new or reconditioned parts  
or products if found to be defective during the  
limited warranty period specified above. All  
replaced parts and products become the property  
of La Crosse Technology, Ltd and must be  
returned to La Crosse Technology, Ltd.  
Replacement parts and products assume the  
remaining original warranty, or ninety (90) days,  
whichever is longer. La Crosse Technology, Ltd  
will pay all expenses for labor and materials for  
all repairs covered by this warranty. If necessary  
repairs are not covered by this warranty, or if a  
product is examined which is not in need of  
repair, you will be charged for the repairs or  
examination.  
The owner must pay any shipping charges  
incurred in getting your La Crosse Technology,  
Ltd product to a La Crosse Technology, Ltd  
authorized service center.  
Your La Crosse Technology, Ltd warranty covers  
all defects in material and workmanship with the  
following specified exceptions: (1) damage  
caused by accident, unreasonable use or neglect  
(including the lack of reasonable and necessary  
maintenance); (2) damage occurring during  
shipment (claims must be presented to the  
carrier); (3) damage to, or deterioration of, any  
accessory or decorative surface; (4) damage  
resulting from failure to follow instructions  
contained in your owner’s manual; (5) damage  
resulting from the performance of repairs or  
alterations by someone other than an authorized  
La Crosse Technology, Ltd authorized service  
center; (6) units used for other than home use (7)  
applications and uses that this product was not  
intended or (8) the products inability to receive a  
signal due to any source of interference.  
This warranty covers only actual defects within  
the product itself, and does not cover the cost of  
installation or removal from a fixed installation,  
normal set-up or adjustments, claims based on  
misrepresentation by the seller or performance  
variations resulting from installation-related  
circumstances.  
LA CROSSE TECHNOLOGY, LTD WILL NOT  
ASSUME LIABILITY FOR INCIDENTAL,  
CONSEQUENTIAL, PUNITIVE, OR OTHER  
SIMILAR DAMAGES ASSOCIATED WITH THE  
Page 11 of 12  
 
OPERATION OR MALFUNCTION OF THIS  
PRODUCT. THIS PRODUCT IS NOT TO BE  
USED FOR MEDICAL PURPOSES OR FOR  
PUBLIC INFORMATION. THIS PRODUCT IS  
NOT A TOY. KEEP OUT OF CHILDREN’S  
REACH.  
This warranty gives you specific legal rights. You  
may also have other rights specific to your State.  
Some States do no allow the exclusion of  
consequential or incidental damages; therefore  
the above exclusion of limitation may not apply to  
you.  
For warranty work, technical support, or  
information contact:  
Hours: Mon-Fri. – 8:00 AM to 6:00 PM Central  
La Crosse Technology, Ltd  
2817 Losey Blvd. S.  
La Crosse, WI 54601  
Phone: 608.782.1610  
Fax: 608.796.1020  
For information on other La Crosse Technology®  
products,  
All rights reserved. This handbook must not be  
reproduced in any form, even in excerpts, or  
duplicated or processed using electronic,  
mechanical or chemical procedures without  
written permission of the publisher.  
This handbook may contain mistakes and  
printing errors. The information in this handbook  
is regularly checked and corrections made in the  
next issue. We accept no liability for technical  
mistakes or printing errors, or their  
consequences.  
All trademarks and patents are acknowledged.  
Ver.1 / 3-12-09  
Printed in China  
Page 12 of 12  
 

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