La Crosse Technology WT-3181 Bedienungsanleitung

Model: WT-3181 www.lacrossetechnology.com/support Page | 1

Model: WT-3181

Instruction Manual

DC: 082015

18” Indoor/Outdoor Atomic Wall Clock

Get Started

Step 1: Remove the round battery cover from the back of the clock.

Step 2: Insert 1 fresh AA, LR6 1.5 volt ALKALINE battery according to

the polarity marked on the case. Replace the battery cover.

Step 2: Firmly press the time zone button once.

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, 4:00 or 8:00 position and search

for the radio signal. If the radio signal is received the time will set. If the

signal is not received the clock will stay at the 12:00, 4:00 or 8:00

position and search for the WWVB time signal on the even hours. Once

the radio signal is decoded, the hands will automatically adjust to the

correct time. This may take up to 5 nights.

Step 4: The default time zone is Pacific Time. If the clocks sets itself and

the hours are off, hold the correct time zone button for 5 seconds

to correct.

Position Clock

Indoor: For the best reception, please place clock on a wall that

faces Ft. Collins, Colorado. The antenna is best positioned for signal

reception when there is only one wall or window between the clock

and outside.

Round

Battery

Cover

Model: WT-3181 www.lacrossetechnology.com/support Page | 2

Central Time

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.

Buildings with a metal roof may interfere with reception.

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.

Outdoor: Choose a location with an overhang to protect the clock

from the overhead sun or standing snow or rain.

A shaded location will prevent inaccurate temperature readings.

Mount the clock on a wall with the hanging hole on the back of the

clock. Be sure the battery cover is on snug.

Manual Set Time

On rare occasions in certain areas, the clock may not be able to receive

the radio controlled time signal due to 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. Remove battery for 15 minutes.

2. Press the Manual Set Tab 20 times.

3. After 15 minutes, insert the battery and allow the clock to spin to

12:00, 4:00 or 8:00.

Battery

Compartment

1-“AA”

Alkaline

Eastern

Time

DST ON/OFF

Button

Mountain Time

Pacific

Time

Manual

Set Tab

Model: WT-3181 www.lacrossetechnology.com/support Page | 3

4. Hold the Manual Set Tab and the hand will spin. Continue holding

until the correct time is achieved.

Note: You can only set the clock manually for about 2 minutes after

the battery is inserted. If the clock receives the WWVB time signal,

this signal will override manually set time.

Temperature and Humidity

The La Crosse Technology® atomic wall clock has two analog sensors

that measure surrounding temperature and humidity. The temperature

information is displayed in degrees Fahrenheit and Celsius, and humidity

data is displayed in percentage.

The thermometer and hygrometer have been calibrated at the factory.

To check the sensors accuracy, tune to your local weather forecast

information broadcast for the latest weather information. The sensors

may be adjusted.

To manually adjust the sensors, use a flat tipped screwdriver to gently

turn the temperature or humidity sensor screw at the back of the clock

until desired setting has been reached.

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.

If you do not observe DST, press the DST button one time to turn OFF.

Outer ring

displays

temperature

in degree

Fahrenheit

Inner ring

displays

temperature

in degree

Celsius

Humidity

display

in %

Calibration

screw for

thermometer

Calibration

screw for

hygrometer

Model: WT-3181 www.lacrossetechnology.com/support Page | 4

Manual WWVB Time Signal Search

For information about WWVB, visit:

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

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 12 months.

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.

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 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: 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.

Q: How do I adjust the Temperature or Humidity?

A: Use a flat tipped screwdriver to gently turn the temperature or

humidity sensor screw at the back of the clock, until desired setting

has been reached.

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

Model: WT-3181 www.lacrossetechnology.com/support Page | 5

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.

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 with 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.

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

2830 26th Street S.

La Crosse, WI 54601

Contact Support:

1-608-782-1610

Product Registration:

www.lacrossetechnology.com/support/register

Online Product Support:

www.lacrossetechnology.com/support

Model: WT-3181 www.lacrossetechnology.com/support Page | 6

FCC Statement

This equipment has been tested and found to comply with the limits for a

Class B digital device, pursuant to part 15 of the FCC Rules. These limits

are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses

and can radiate radio frequency energy and, if not installed and used in

accordance with the instructions, may cause harmful interference to

radio communications. However, there is no guarantee that interference

will not occur in a particular installation. If this equipment does cause

harmful interference to radio or television reception, which can be

determined by turning the equipment off and on, the user is encouraged

to try to correct the interference by one or more of the following

measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that

to which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

This device must not be co-located or operating in conjunction with any

other antenna or transmitter.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including

interference that may cause undesired operation.

Caution!

The manufacturer is not responsible for any radio or TV interference

caused by unauthorized modifications to this equipment. Such

modifications could void the user authority to operate the equipment.

even in part, or duplicated or processed using electronic, mechanical or

chemical process without the written permission of the publisher.

This booklet may contain errors or misprints. The information it contains

is regularly checked and corrections are included in subsequent editions.

We disclaim any responsibility for any technical error or printing error, or

their consequences.

All trademarks and patents are recognized.

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