La Crosse Technology 404-1225 User manual

Model: 404-1225 www.lacrossetechnology.com/support Page | 1

Model: 404-1225

Instruction Manual

10” Atomic Wall Clock

Get Started

Step 1: Slide the switch to select a time zone.

Step 2: Insert 1 fresh AA, LR6 1.5 voltALKALINE battery according to the

polarity marked on the case.

Step 3: Position the clock on an exterior wall that faces Ft. Collins Colorado.

During the night, your clock will automatically set itself.

Note: The hands will move to the 12:00 position and search for the radio signal.

If the radio signal is not received in the first 10 minutes, the clock will start

running from the 12:00 position and will continue to run. Do not attempt to

reset the hands manually even though the time on the clock is incorrect. The

clock is synchronizing to the WWVB signal and once the radio signal is decoded,

the hands will automatically adjust to the correct time. This may take up to 5

nights.

Position Clock

•Choose a location 6 feet or more from electronics such as cordless phones,

wireless gaming systems, televisions, microwaves, routers, baby monitors,

etc., which can prevent signal reception.

•Position near an exterior wall that faces Ft. Collins Colorado for WWVB time

signal reception.

•The antenna is available for signal reception when the front or back of the

clock faces Colorado.

Reset:

If the clock does not respond to the various function modes, reset the clock by

pressing the RESET button on the movement case.

Note: We recommend that you change the battery every 24 months to maintain

accuracy. Remove the battery when the clock will not be in use for an extended

period.

Model: 404-1225 www.lacrossetechnology.com/support Page | 2

Manual Set Time

On rare occasions in certain areas, the clock

may not be able to utilize the radio controlled

function because of the strength of the signal

or the geographic location. In this case, the

clock can be set manually and used as a

regular quartz wall clock.

Note: Allow up to five nights for the clock to receive the WWVB signal before

manually setting the time.

Set the clock manually:

1. Press and hold the SET button for 3+ seconds to activate the manual mode.

Once the clock is in manual mode, there are two ways to move the minute

hand forward.

2. Hold the SET button down to move the minute hand forward consistently.

3. Alternatively, press the SET button rapidly (more than once per second) to

move the minute hand forward step by step (in minute increments).

4. Use these features to move the minute hand forward until the correct time is

set. The clock will automatically leave manual mode after the SET button is

not pressed for 6+ seconds.

Troubleshooting

The wonderful advantage of owning a radio-controlled clock is that it is virtually

trouble free. If the clock receives a clear time signal, it will set itself perfectly. If it

does not receive a time signal, consider the following:

•Battery – The clock must have a fresh battery to receive and process the

time signal.

•Location – Try a different location, ideally near a window. Your clock 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.

Daylight Saving Time:

The National Institute of Standards and Technology and WWVB encode a special

DST “bit” in the WWVB transmission for DST. Your clock will read this information

and automatically advance the hands one hour in the spring and eleven hours in

the fall.

Arizona

If you live in an area that does not recognize DST, you must slide the DST switch

OFF. To reactivate the DST program simply slide the switch to the ON position.

Model: 404-1225 www.lacrossetechnology.com/support Page | 3

Manual WWVB Time Signal Search

For information about WWVB, visit: www.nist.gov/pml/div688/grp40/wwvb.cfm

Manual Signal Search:

The WWVB signal is strongest at night.

•Hold the WAVE button down for 3+ seconds.

•The hands will automatically reset to the 12:00 position, and the movement

will attempt to enforce a signal receipt from Fort Collins, CO.

•If the movement successfully receives the signal, the clock will reset

automatically to the correct time. The enforced signal receipt takes

approximately 3-8 minutes. If the clock still fails to receive the signal while in

the WAVE mode, the clock will automatically leave the WAVE mode.

•Set the clock manually and the movement's micro-CPU will control the time

keeping function.

Internal Synchronization:

Once the clock has set correctly by the radio signal, the clock’s CPU operates

continuously. To ensure accuracy, the clock synchronizes the position of the

second and minute hands to the time calculated by the CPU every day. Second

hand synchronization occurs at 1:30 a.m. and 9:30 a.m. and minute hand

synchronization occurs between 1:50 and 2:01 am every day.

Signal Interference:

In some cases, the signal is affected by weather conditions and electrical

interferences, or the location of the clock itself may result in poor reception. If the

clock has not synchronized to the correct time within a few days of activation, you

may need to move the clock to a different location.

Frequently Asked Questions

Q. How long will the battery last?

A.A good AA alkaline battery will last over 24 months.

Q: Can I wire a control timing circuit to the La Crosse Technology® atomic clock?

A: No, the clock cannot work on a timing circuit. Opening the clock voids the warranty.

Q: Is there a booster antenna to receive the WWVB signal in a difficult location?

A: No, the clock cannot work with a booster antenna. Opening the clock or movement voids

the warranty.

Q: Can I shut off the WWVB signal?

A: No. If you manually set the time, when the clock receives a WWVB signal, that signal

will override the manual set. The WAVE button will temporarily stop a WWVB search, but

will not permanent stop the clock from receiving a WWVB time signal.

Q: Is there a version of analog clock with more than the four continental US times

zones?

A: La Crosse Technology® does not make an analog clock with more than four time zones.

These time zones are P (Pacific Time), M (Mountain Time), C (Central Time), and E

(Eastern Time).

Model: 404-1225 www.lacrossetechnology.com/support Page | 4

Q: Why do the hands spin?

A: When the hands spin about the same time every day the clock is auto-correcting the

time. The hour hand should not spin more than twice around the clock.

A: Hands may spin if the battery is under powered or over powered. Use only Alkaline

batteries in the clock.

CARE AND MAINTENANCE

•Do not mix old and new batteries

•Do not mix Alkaline, Standard, Lithium or Rechargeable Batteries

•Do not expose to extreme temperature, vibration or shock.

•Clean with a soft damp cloth. Do not use solvents.

•The product is not a toy. Keep it out of reach of children.

•The product is not to be used for medical purpose or for public information. It is

intended for home use only.

•The specs of this product may change without prior notice.

•Improper use or unauthorized opening of housing voids warranty.

Warranty and Support Information

La Crosse Technology, Ltd. provides a 1-year limited time warranty (from date of purchase)

on this product relating to manufacturing defects in materials & workmanship.

View full warranty details online at:

www.lacrossetechnology.com/warranty_info.pdf

For warranty work, technical support or other information contact:

La Crosse Technology, Ltd

2817 Losey Blvd. S.

La Crosse, WI 54601

Contact Support:

1-608-782-1610

Product Registration:

www.lacrossetechnology.com/support/register

Online Product Support:

www.lacrossetechnology.com/404-1225

FCC Statement

This Device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and (2) the device must accept any interference

received, including interference that may cause undesired operation.

NOTE: THE MANUFACTURER IS NOT RESPONSIBLE FORANY RADIO OR TV INTERFERENCE

CAUSED BY UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS

COULD VOID THE USER AUTHORITY TO OPERATE THE EQUIPMENT

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.

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