La Crosse Technology WT-3143A Manuel utilisateur

User Manual of Product 1:

La Crosse Technology WT-3143A-INT 14-Inch Atomic Wall

Clock, Black

User Manual of Product 2:

La Crosse Technology WT-3129B 12 Inch Atomic Analog Wall

Clock, Pack of 1, Black

Model: WT-3143A www.lacrossetechnology.com/support Page | 1

Model: WT-3143A

Instruction Manual

DC: 031716

14” Atomic Wall Clock

Get Started

1: Slide the switch to select a time zone and DST ON or OFF.

2: Insert 1 freshAA, LR6 1.5 volt ALKALINE battery according to the polarity

marked on the case.

OPTIONAL: To extend battery life (over 3 years), insert two batteries in the

compartment below the movement.

3: For the best reception, please place clock on a 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 if there is atmospheric interference.

Position Clock

•Signal reception is at its peak when there is only one wall or window

between the clock and the outside.

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

the clock faces Colorado.

•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.

•Large office buildings, schools, or hospitals may not receive the WWVB time

signal in every room.

Time Zone

DST ON/OFF

Model: WT-3143A www.lacrossetechnology.com/support Page | 2

•Building with a metal roof may interfere with reception.

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

clock by pressing the RESET button on the movement case.

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: WT-3143A 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 search for the WWVB time signal from Fort Collins, CO.

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

automatically to the correct time. The signal search takes approximately 3-8

minutes.

•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.One good AAalkaline battery will last over 12 months, and over 3 years with

the optional, 2 additional batteries.

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.

Model: WT-3143A www.lacrossetechnology.com/support Page | 4

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).

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

•Always purchase the correct size and grade of battery most suitable for

intended use.

•Replace all batteries of a set at the same time.

•Clean the battery contacts and also those of the device prior to battery

installation.

•Ensure the batteries are installed with correct polarity (+and -).

•Remove batteries from equipment which is not to be used for an extended

period of time.

•Remove expired batteries promptly.

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.

Before returning a product, please contact our friendly customer support

with questions or visit our online help (manuals and FAQS):

Phone: 1-608-782-1610

Online Product Support: www.lacrossetechnology.com/support

Product Registration:

www.lacrossetechnology.com/support/register

View full warranty details online at:

www.lacrossetechnology.com/warranty_info.pdf

Warranty Address:

La Crosse Technology, Ltd

2830 S. 26th St.

La Crosse, WI 54601

12 “ Atomic Wall Clock

Model: WT-3129Bx1 | WT-3129Sx1

DC: 101316

Power up

Select Time Zone and DST ON or OFF.

Insert 1 AA battery into the movement.

OPTIONAL: Insert 2 AA batteries in the side

compartments, for up to 3 year battery life.

For best reception, place clock on a wall that faces

Ft. Collins, Colorado.

During the night, your clock will set itself.

IMPORTANT:

• Hands will move to 12:00 and search for the

atomic time signal.

• If no signal, after 8-10 minutes, clock will run from

12:00.

• Clock will search for atomic time signal again, after

midnight, when signal is strongest.

• Allow up to 5 nights for the clock to receive the

atomic time signal.

For information about WWVB, atomic time signal visit:

www.nist.gov/pml/div688/grp40/wwvb.cfm

SET

RESET

WAVE (Atomic search)

Battery

Time Zone Selector

DST Selector

Set the clock manually:

Hold SET for 3 seconds

Press and Hold SET to move hands quickly.

Press and release SET to move hands forward step by

step.

The atomic time signal will override manual settings.

Reset:

If the clock does not respond to function modes, press the

RESET button on the movement case.

• Do not mix old and new batteries

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

• Always purchase the correct size and grade of battery most suitable for use.

• Replace all batteries of a set at the same time.

• Clean the battery contacts and also those of the device prior to battery installation.

• Ensure the batteries are installed with correct polarity (+ and -).

• Remove batteries from equipment which is not to be used for an extended time.

• Promptly remove expired batteries.

Care and Maintenance

Warranty Support

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.

Before returning a product, please contact our friendly customer support with

questions or visit our online help.

Phone: 1-608-782-1610 www.lacrossetechnology.com

View full warranty details online at:

www.lacrossetechnology.com/warranty_info.pdf

Visit Us on Social Media

For latest video content:

http://bit.ly/LaxTech_YouTube

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http://bit.ly/LaxTech_Facebook

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Specications

Batteries: 1 AA (IEC LR6) required in movement

(Alkaline recommended)

Optional 2 AA batteries for up to 3 year battery life.

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