La Crosse Technology Clock WT 3181pl User Manual

RADIO CONTROLLED ANALOG CLOCK  
INSTRUCTION MANUAL  
Quick set up instructions  
Welcome to the world of atomic timekeeping technology. We hope you will enjoy  
the convenience of never having to set your clock again and the confidence of  
knowing exactly what time it is.  
MANUAL TIME SET  
BUTTON  
BATTERY  
COMPARTMENT  
PACIFIC TIME  
EASTERN TIME  
DST ON/OFF BUTTON  
MOUNTAIN TIME  
CENTRAL TIME  
For a better understanding of how and why your clock works please continue  
reading.  
NOTHING IS MORE PRECISELY MEASURED THAN TIME!  
And nothing keeps track of time more precisely and trouble free than La  
Crosse Technology atomic clocks.  
Twist and lift open the battery compartment cover at the back of the clock  
and insert 1 fresh AA, LR6 1.5 volt ALKALINE battery according to the  
polarity marked on the case.  
Since the beginning of time, man has been fascinated with the  
measurement of time and has devised more accurate machines to trap and  
measure time. Today, time is precisely measured in the United States by the most  
accurate clock in North America, the Atomic Clock of the US National Institute of  
Standards and Technology, Time and Frequency Division in Boulder, Colorado. A  
team of atomic physicists continually measures 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. This atomic clock regulates the WWVB radio  
transmitter located in Fort Collins, Colorado, where the exact time signal is  
continuously broadcast throughout the United States at 60 kHz to take advantage  
of stable long wave radio paths found in that frequency range. Radio waves at  
these low frequencies use the earth and the ionosphere as a wave-guide and  
follow the curvature of the earth for long distances.  
Once the battery is installed, the clock will begin searching for a signal. For  
the initial setting, it is recommended to stand the clock in an upright position  
near a window. Within five minutes the clock will either receive the WWVB  
signal and set itself to the exact time (for the default Pacific Time Zone), or it  
will determine that the signal is not receivable at its current location and time  
of day. If a signal is not receivable, it will fast-forward the hands to the 4, 8,  
or 12 o’clock position and search for WWVB every two hours until a signal is  
received. If the time is manually set, the clock will continue to periodically  
search for a signal and automatically reset the hands when the signal is  
received.  
Press time zone button to select a time zone after the clock received the  
WWVB signal. If you are in the Pacific Time Zone- you are ready to hang  
your clock.  
If you are not in the Pacific Time Zone, select your time zone by pressing  
one of the four time zone buttons PT-Pacific Time, MT-Mountain Time, CT-  
Central Time, ET-Eastern Time. If multiple buttons are pressed, the clock  
will set to the time zone selected last. If no time zone is selected the clock  
will default to Pacific Time. If you live in an area that does not recognize  
DST (Arizona and Indiana) you must press the (unmarked) DST button for  
one second to deactivate your clock’s DST program.  
The built in antenna system will receive the WWVB signal anywhere in North  
America within 2000 miles of Fort Collins where long-wave radio reception is  
undisturbed. A microprocessor activates the receiver and processes the time  
signal from Fort Collins overnight.  
Through the radio signals, La Crosse Technology atomic clocks always  
keep precise time. The changeover from standard time to daylight saving time,  
and vice versa, takes place automatically with the same precision.  
For time zones outside of PT, MT, CT or ET you must manually set the time  
using the Manual Time set button on the back of the movement. (See  
instructions below).  
ADDITIONAL DETAILS  
To set up your clock simply install one fresh AA, LR6 ALKALINE battery.  
Due to the nature of long wave radio signals it is normally not possible to receive a  
signal during the day so it is best to install the battery late in the evening. Select  
your time zone by pressing one of the four time zone buttons PT-Pacific Time,  
MT-Mountain Time, CT-Central Time, ET-Eastern Time. The time zone buttons  
may be pressed any time after installing the batteries. If multiple buttons are  
pressed the clock will set to the time zone selected last. If no time zone is  
selected the clock will default to Pacific Time. Another time zone can be selected  
during or after the clock has set itself. Your clock can only set itself to one of the  
four time zones stated above. For time zones outside of PT, MT, CT or ET you  
must manually set the time using the Manual Time set button on the back of the  
movement.  
Replace the battery compartment cover.  
THAT’S IT! During the night your clock will automatically set itself.  
BATTERY COMPARTMENT  
COVER  
Once the battery is installed the clock will begin searching for a signal. For  
the initial setting it is recommended to stand the clock in an upright position near a  
window. Within five minutes the clock will either receive the WWVB signal and set  
itself to the exact time, or it will determine that the signal is not receivable at its  
current location and time of day. If a signal is not receivable it will fast-forward the  
hands to the 4, 8, or 12 o’clock position and search for WWVB each even  
numbered hour until a signal is received. If the time is manually set the clock will  
BATTERY  
COMPARTMENT  
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e-mail:  
BATTERIES CHANGE:  
For best performance, batteries should be replaced at least once a year to maintain the  
best running accuracy. Ensure that the batteries used are new and the correct size.  
(warranty work)  
Please help in the preservation of the environment and return used  
batteries to an authorized depot.  
(information on other products)  
web:  
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.  
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.  
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 or 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 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:  
La Crosse Technology, Ltd  
2809 Losey Blvd S.  
La Crosse, WI 54601  
Phone: 608.782.1610  
Fax: 608.796.1020  
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