La Crosse Technology WT-3131TWC Bedienungsanleitung

WT-3131TWC

Radio-controlled Analog Clock

With Weather Forecast

Instruction Manual

TABLE OF CONTENTS

Topic Page

Inventory of Contents/Additional Equipment 2

About WWVB 2

Detailed Set-Up Guide

Battery Installation 2

Function Keys 3

Time Zone Setting 3

Daylight Saving Time Setting 3

Features

Weather Forecast Icons 4

Indoor Temperature and Humidity 5

Mounting 5

Troubleshooting 5

Maintenance & Care 5

Specifications 6

Warranty Information 7-8

INVENTORY OF CONTENTS

1. Radio-controlled analog clock with weather forecast

2. Instruction manual and warranty card

ADDITIONAL EQUIPMENT (not included)

1. One AA alkaline battery

2. Two AAA alkaline batteries

3. One screw for wall mounting clock

ABOUT WWVB (Radio Controlled Time)

The NIST (National Institute of Standards and Technology—Time and Frequency

Division) WWVB radio station is located in Ft. Collins, Colorado, and transmits the exact

time signal continuously throughout the United States at 60 kHz. The signal can be

received up to 2, 000 miles away through the internal antenna in the clock. However, due

to the nature of the Earth’s Ionosphere, reception is very limited during daylight hours.

The clock will search for a signal every night when reception is best. The WWVB radio

station derives its signal from the NIST Atomic clock in Boulder, Colorado. A team of

atomic physicists is continually measuring 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. For more information about WWVB please see the NIST website at

http://www.boulder.nist.gov/timefreq/stations/wwvb.htm

DETAILED SET UP GUIDE

1. Battery Installation

There are two locations for batteries on the clock

a. The analog clock requires one AA battery for operation

b. The battery is inserted on the back of the clock above the four time zone

buttons.

c. After the battery is inserted press the desired time zone button.

d. The weather LCD requires two AAA batteries for operation.

e. The battery compartment is located directly above the “SET ºC/ºF” button

on the back of the clock.

Note: Ensure that the correct polarity is followed when inserting the batteries

into each location.

2. Function Keys

There are six buttons on the back of the clock.

a. The time zone buttons are labeled “PT”, “MT”, “CT” and “ET”. These

buttons are directly above the AA battery slot for the clock.

b. In between the “CT” and “ET” buttons is the DST (Daylight Saving

Time) over ride button. Pressing this button will disable/enable the DST

recognition of the clock

c. There is a black manual time set button located directly above the AA

battery slot for the clock. By holding this button down you are able to

manually set the time on your clock.

d. The last button is the “SET ºC/ºF” button, which is located below the

AAA battery compartment. Press and release this button to switch

between ºC and ºF.

3. Time Zone Setting

Press and release one of the four time zone buttons on the back of the clock to

select your desired time zone. The clock will automatically adjust to the correct

time for that zone.

4. Daylight Saving Time (DST) Setting

Press and release the daylight saving time button to deactivate or reactivate the

daylight saving time recognition feature of the clock.

Note: Some locations (Arizona and parts of Indiana) do not follow Daylight

Saving Time.

There is no indication of the mode the daylight saving time feature is in the

factory setting is ON.

FEATURES

1. Weather Forecast

The weather forecasting feature is estimated to be 75% accurate. The weather

forecast is based solely upon the change of air pressure over time. The WT-3131A

averages past air-pressure readings to provide an accurate forecast, creating a

necessity to disregard all weather forecasting for 12-24 hours after the unit has

been set-up, reset, or moved from one altitude to another (i.e. from one floor of a

building to another floor). In areas where the weather is not affected by the

change of air pressure, this feature will be less accurate.

a. Weather Icons

There are 3 possible weather icons that will be displayed in the

FORECAST LCD:

Sunny—indicates that the weather is expected to improve (not that the

weather will be sunny).

Sun with Clouds—indicates that the weather is expected to be fair (not that

the weather will be sunny with clouds).

Clouds with Rain—indicates that the weather is expected to get worse (not

that the weather will be rainy).

The weather icons change when the unit detects a change in air pressure.

The icons change in order, from “sunny” to “partly sunny” to “cloudy” or

the reverse. It will not change from “sunny” directly to “rainy”, although it

is possible for the change to occur quickly. If the symbols do not change

then the weather has not changed, or the change has been slow and

gradual.

a. Weather Tendency Arrows

1. Other possible displays in the FORECAST LCD are 2 weather

tendency arrows, one that points up (on the left side of the LCD)

and one that points down (on the right side of the LCD). These

arrows reflect current changes in the air pressure.

2. An arrow pointing up indicates that the air pressure is increasing

and the weather is expected to improve or remain good.

3. An arrow pointing down indicates that the air pressure is

decreasing and the weather is expected to become worse or

remain poor.

4. No arrow means the pressure is stable.

2. Indoor Temperature and Humidity

The current indoor temperature (viewed on the left) and relative humidity (viewed

on the right) are displayed in the INDOOR LCD. These measurements are taken

within the clock.

MOUNTING

1. Fix a screw (not included) into the desired wall, leaving approximately 3/16 of an

inch (5mm) extended from the wall.

2. Place the indoor weather station onto the screw using the hanging hole on the

backside.

3. Gently pull the indoor weather station down to lock the screw into place.

TROUBLESHOOTING

If your clock does not receive a signal please check the following:

Battery - The clock must have a fresh battery to receive and process the time signal.

When the battery drops below 1.25 volts the clock indicates that it is time to

change the battery by advancing the second hand in two-second steps. The

operating voltage range is 1.25 to 1.75 volts.

Location - Try a different location, ideally near a window. It 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.

MAINTENANCE AND CARE INSTRUCTIONS

• Extreme temperatures, vibration, and shock should be avoided to prevent

damage to the units.

• Clean displays and units with a soft, damp cloth. Do not use solvents or

scouring agents; they may mark the displays and casings.

• Do not submerge the clock in water.

• Immediately remove all low powered batteries to avoid leakage and damage.

• Opening the casing invalidates the warranty. Do not try to repair the unit.

Contact La Crosse Technology for repairs.

SPECIFICATIONS

Temperature measuring range:

Indoor 32°F to 122°F with 0.2°F

resolution (0°C to 50°C

with 0.1°C resolution)

“OFL” displayed if

outside this range

Relative humidity

measuring range

19% to 95% with 1%

resolution. (“- -”

displayed if outside this

range

Indoor temperature

checking interval

Every 10 seconds

Indoor humidity checking

interval

Every 1 minute

Power Supply:

Analog clock 2 x AA, 1.5V

Weather LCD 2 x AAA, 1.5V

Battery life cycle Approximately 12 months

Recommended battery

type

Alkaline

Dimensions

Analog clock 13 inch diameter

(330 mm)

1.75 inch depth

(44 mm)

WARRANTY INFORMATION

La Crosse Technology provides a 1-year warranty on this indoor weather station.

Contact La Crosse Technology immediately upon discovery of any defects covered by

this warranty. Before sending the indoor weather station in for repairs, contact La Crosse

Technology. The indoor weather station will be repaired or replaced with the same or

similar a similar model.

This warranty does not cover any defects resulting from improper use, unauthorized

repairs, faulty batteries, or the indoor weather station’s inability to receive a signal due to

any source of interference.

LA CROSSE TECHNOLOGY WILL NOT ASSUME LIABILITY FOR INCIDENTAL,

CONSEQUENTIAL, PUNITIVE, OR OTHER SIMILAR DAMAGES ASSOCIATED

WITH THE OPERATION OR MALFUNCTION OF THIS INDOOR WEATHER

STATION. THIS PRODUCT IS NOT TO BE USED FOR MEDICAL PURPOSES OR

FOR PUBLIC INFORMATION. THIS PRODUCT IS NOT A TOY. KEEP OUT OF

CHILDRENS’ 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 at:

La Crosse Technology

1116 South Oak Street

La Crescent, MN 55947

Phone: 507.895.7095

Fax: 507.895.8000

e-mail

[email protected]

(warranty work)

[email protected]

(information on other products)

web

www.lacrossetechnology.com

FCC ID: OMO-01RX

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. THIS DEVICE MUST ACCEPT INTERFERENCE RECEIVED, INCLUDING

INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.

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.

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