La Crosse WT-3181PL Manuel utilisateur
Model: WT-3181PL www.lacrossetechnology.com/support Page | 1
Model: WT-3181PL
Instruction Manual
DC: 041614
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: 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.
Round
Battery
Cover
Model: WT-3181PL www.lacrossetechnology.com/support Page | 2
Central Time
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.
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 and press the Manual Set Tab 20
times.
2. After 15 minutes, insert the battery and allow the clock to spin to
12:00, 4:00 or 8:00.
3. 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,
Battery
Compartment
1-“AA”
Alkaline
Eastern
Time
DST ON/OFF
Button
Mountain Time
Pacific
Time
Manual
Set Tab
Model: WT-3181PL www.lacrossetechnology.com/support Page | 3
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.
Arizona
If you live in an area that does not recognize DST, you must press the
DST button one time only 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-3181PL 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: 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 PT (Pacific Time), MT
(Mountain Time), CT (Central Time), and ET (Eastern Time).
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.
Model: WT-3181PL www.lacrossetechnology.com/support Page | 5
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
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
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
Model: WT-3181PL www.lacrossetechnology.com/support Page | 6
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/3181pl
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 FOR ANY
RADIO OR TV INTERFERENCE CAUSED BY UNAUTHORIZED
MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS
COULD VOID THE USER AUTHORITY TO OPERATE THE
EQUIPMENT
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.
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