La Crosse Technology WS-8157 User Manual

WS-8157

ATOMIC CLOCK WITH OUTDOOR WIRELESS TEMPERATURE

AND WEATHER FORECAST

FEATURES:

ATOMIC CLOCK:

LCD1
display

LCD2
display

• WWVB Radio controlled time with manual time setting

• 12/24 hour time display

• Time display: hour, minute, second

• Alarm setting with snooze function

• Calendar display

• Weekday display (4 languages to choose from: English, French, Spanish and German)

• Time zone setting

• Daylight savings time ON/OFF option (DST)

• ºC or ºF temperature display selectable

• Indoor temperature display

• Outdoor temperature display via 433MHz transmission

• Wall mount or freestanding

• Weather forecast for next 12 to 20 hours based on changing air pressure

Instruction Manual

Hanging holes

Function keys

Battery cover

Foldable stand

OUTDOOR TEMPERATURE TRANSMITTER:

• Remote transmission of outdoor temperature to the atomic clock by 433 MHz signals

• Wall mounting case

Holder

TO INSTALL AND REPLACE BATTERIES IN THE ATOMIC CLOCK

The atomic clock uses 2 x AA, 1.5V batteries. To install and replace the batteries, please follow the
steps below:

1. Insert finger or other solid object in the space at the bottom center of the battery compartment
and lift up to remove the cover.

2. Insert batteries observing the correct polarity (see marking inside battery compartment).

3. Replace compartment cover.

DO NOT SET THE CLOCK.

TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE TRANSMITTER

The transmitter uses 2 x AA,1.5V batteries. To install and replace the batteries, please follow the
steps below:

1. Remove t he cover.

2. Insert the batteries, observing the correct polarity (see marking inside battery compartment).

3. Replace the battery cover on the unit.

Alkaline batteries are recommended for use in both units. Avoid using rechargable batteries.

SETTING UP:

Alkaline batteries are recommended for use in both units. Avoid using rechargable

A

batteries.

NOTE: Do not set the clock until the outdoor temperature is displayed.

1. Place batteries in the outdoor transmitter first, then into the atomic clock. DO NOT
PRESS ANY BUTTONS FOR 10 MINUTES.

2. After the 10 minutes both the Indoor and Outdoor areas on your clock should have a
temperature showing. If not, remove both sets of batteries, wait 10 minutes and repeat step
one.

3. After the clock receives the outdoor temperature, set your time zone using the manual
settings below. The default (factory) time zone is Eastern Standard Time.

4. After the clock receives the outdoor temperature the WWVB time code reception will
automatically start. This reception typically takes between 5-10 minutes in good conditions. If
after 10 minutes the WWVB time has not been received, use the “SET” key to manually enter
the set-up mode and change either the time or date in order to activate the WWVB reception
(see manual settings below). The clock will then automatically attempt to receive the WWVB
time from 12:00 am through 6:00 am each day (attempts WWVB reception every full hour within
this time frame). When this is successful, the received time will override the manually set time.
The date is also updated with the received time (Please refer to notes on “Radio controlled

time” and “Manual time setting”).

Note:

In the event of changing batteries of the unit ensure that the batteries do not spring free from the
contacts. Always wait at least 10 minutes after removing the batteries before reinserting, otherwise
start up and transmission problems may occur.

FUNCTION KEYS

The atomic clock has four easy to use keys:

SET key : To enter into the set mode for the following functions: time zone, DST ON/OFF

+ key : To toggle between the second, temperature or weekday display

To change any values in manual set mode
ALM key : To enter into the alarm set mode
To set the alarm ON/OFF
SNZ key : To activate the snooze function during alarm

(daylight saving time), language, hour, minute, year, month, day, weekday, 12/24
hour, ºC or ºF temperature display

To display the alarm time in normal mode display
To exit the setting modes

ATOMIC CLOCK LCD SCREEN DESCRIPTIONS

The atomic clock's LCD is divided into 2 sections and once the batteries are inserted, all the
segments will light up briefly before displaying the information for time, date, indoor and outdoor
temperatures.

WWVB time

Indoor temperature

Date

Radio reception icon

larm icon

Outdoor temperature display

Weekday

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 WS-8157 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.

Weather Icons

There are 3 possible weather icons that will be displayed in the LCD 2:

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.

Weather Tendency Arrows

Other possible displays in LCD 2 are 2 weather tendency arrows, one that points up (on the left side
of the forecast) and one that points down (on the right side of the forecast). These arrows reflect
current changes in the air pressure. An arrow pointing up indicates that the air pressure is increasing
and the weather is expected to improve or remain good. An arrow pointing down indicates that the
air pressure is decreasing and the weather is expected to become worse or remain poor. No arrow
means the pressure is stable.

MANUAL SETTINGS

Note:
If the atomic clock has already successfully received the WWVB time signal and displays the
correct time and date, then the Manual settings can be skipped.

After completion of the above described procedures in “Setting up” the manual setting modes can
be entered by pressing and holding the SET key for 3 seconds. The following settings can now be
programmed:

• Time zone setting

• DST ON/OFF

• Language display setting

• Manual time setting

• Year setting

• Month setting

• Date setting

• Weekday setting

• 12/24 hour time display setting

• ºC or ºF setting

TIME ZONE SETTING

After entering the manual setting mode as described above, the time zone can be set between the –1
to –12 hour or Greenwich Mean Time (GMT) range in LCD2. To do this:

1. The time zone (LCD2) will start flashing (Default setting "-5h“). Select the desired time zone by pressing

and releasing the + key.

Note: The time zones from –4 to –10 hours will be displayed with 3 characters abbreviations:

• -4 ATL (Atlantic time),

• -5 EST (Eastern time; default time zone),

• -6 CST (Central time),

• -7 MST (Mountain time),