La Crosse Technology WS-6003U User manual

WS-6003U
Atomic Clock
Instruction Manual
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TABLE OF CONTENTS
Topic Page
Inventory of Contents/ Additional Equipment 3
About WWVB 3
Quick Set-Up Guide 3
Detailed Set-Up Guide
Battery Installation 4
Program Mode
Function Buttons 5
Time Zone Setting 6
DST (Daylight Saving Time) Setting 6
Language Selection 7
Time Setting 7
Calendar Setting 7-8
12/24-Hour Setting 8
Selecting °F or °C 8
Features & Operations
Displaying the Seconds 9
Mounting 9-10
Maintenance & Care 10
Troubleshooting 11
Specifications 12
Warranty Information 12

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INVENTORY OF CONTENTS
1) WS-6003U
2) Instruction manual and warranty card.
ADDITIONAL EQUIPMENT (not included)
1) Two fresh 1.5V AA batteries.
2) Three wall-hanging screws.
3) Appropriate screwdriver for screws.
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 Atomic Clock.
However, due to the nature of the Earth’s Ionosphere, reception is very limited during
daylight hours. The Atomic 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. This Atomic Clock regulates the WWVB transmitter.
QUICK SET-UP GUIDE
1) Insert two AA batteries into the Atomic Clock.
2) Wait 15 minutes for WWVB reception.
3) If there is no WWVB reception, manually set the time and date (instructions
in the Program Mode).
4) Program the settings.
5) Mount the WS-6003U in a suitable location, where WWVB signals can be
received.
DETAILED SET-UP GUIDE
I) BATTERY INSTALLATION
Note: To avoid start-up
problems make sure that the
batteries do not spring free.
A) ATOMIC CLOCK
SET
Battery Compartment
Battery Cover

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1) Remove the battery cover, located on the backside of the unit and directly
above the function buttons.
2) Observe the correct polarity, and install 2 AA batteries.
3) Replace the battery cover.
Note: After the batteries have been installed all the LCD’s (Liquid Crystal
Display) will briefly light up. Then the indoor temperature, the date as “1/
1” and the weekday as “MON” will be displayed. Also, the time will
appear as “-:--” for approximately 1 minute. Then the WWVB search is
automatically initiated, and a tower icon appears and flashes with the time
colon (no tower icon will appear if the WWVB is too weak to be detected).
While the WWVB search is being conducted various numbers will appear in
the time display. The numbers “0”, “1”, or “8” will appear in the hour
position and the seconds will appear in the minute display. The Atomic
Clock will either display the WWVB time, or discontinue the search after 10
minutes if the time is not found. When the search is cancelled “-:--”will
appear in the time LCD. The Atomic Clock will conduct a WWVB search
every hour until the first signal is found. Once the WWVB time is found, a
search is automatically conducted nightly at midnight. If the signal is found
at midnight, the tower icon will remain, if not, another search will take
place every hour (up to 6:00 am) until the signal is found successfully. If no
signal is found during this period, the tower icon will not appear and the
clock will search again at 12:00 am the next night.
PROGRAM MODE
To enter the Program Mode hold down the “SET” button for 2 seconds, until “-5EST”
flashes in the Date LCD. The Program Mode is laid out in a manner that allows you to
WWVB Tower
Indoor
Weekda
y
Month/Da
t

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program each function separately, or you can follow the instructions entirely to program
the Atomic Clock. Complete programming is usually done for the initial set-up, and will
require you to skip step 1 of programming sections III through VIII. Wait approximately
15 seconds for the Atomic Clock to automatically return to normal operation.
I) FUNCTION BUTTONS
There are 2 function buttons located on the backside of the Atomic Clock. The
function buttons are labeled: SET and +.
II) TIME ZONE SETTING
1) Hold down the “SET” button for 2 seconds, the default setting “-5EST” will
flash in the Date LCD.
2) Press and release the “+” button to select the appropriate time zone. There
are 13 time zones to choose from:
-5EST Eastern Time (default setting)
-6CST Central Time
-7MST Mountain Time
-8PST Pacific Time
-9ALA Alaskan Time
-10HAW Hawaiian Time
-11
-12
GMT Greenwich Mean Time
-1
-2
-3
-4ATL Atlantic Time
3) Press and release the “SET” button to confirm the time zone setting, and to
advance to DST (Daylight saving time) setting.
III) DST (DAYLIGHT SAVING TIME) SETTING
Note: The DST default is “On”, meaning that the WWVB will automatically change
the time according to Daylight Saving Time in the spring and fall. For areas that do
not recognize DST changes (Arizona and parts of Indiana) turn the DST “OFF”.
1) Hold down the “SET” button for 2 seconds (the selected time zone will
flash), press the “SET” button once more until “On” flashes in the time
LCD and “DST” flashes where the Weekday normally appears.
2) Press and release the “+” button to turn the DST off, as will be indicated by
the display of “OFF” in the time LCD.

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3) Press and release the “SET” button to confirm the DST setting, and to
advance to select the language for the weekday.
IV) LANGUAGE SELECTION FOR THE WEEKDAY
1) Hold down the “SET” button for 2 seconds (the selected time zone will
flash), press the “SET” button 2 more times, until the default language
“US” flashes in the time LCD.
2) Press and release the “+” button to toggle through and to select the desired
language. There are 3 languages to select from:
US English
F French
E Spanish
3) Press and release the “SET” button to confirm the language setting, and to
advance to manually set the time.
V) TIME SETTING
Note: When the WWVB signal is found, that time will over-ride the manually set
time.
1) Hold down the “SET” button for 2 seconds (the selected time zone will
flash), press the “SET” button 3 more times, until the hour “12:00” flashes
in the time LCD.
2) Press and release the “+” button to select the hour. Note: when setting the
hour, “PM” will appear to the left of the hour display, if it is AM nothing
will be displayed.
3) Press and release the “SET” button to confirm the hour setting, and to shift
to select the minutes.
4) Press and release the “+” button to select the minutes.
5) Press and release the “SET” button to confirm the time setting, and to
advance to manually set the calendar.
VI) CALENDAR SETTING
Note: When the WWVB signal is found, that date will over-ride the manually set
date.
1) Hold down the “SET” button for 2 seconds (the selected time zone will
flash), press the “SET” button 5 more times, until the default year “00”
flashes in the date LCD.
2) Press and release the “+” button to select the year.
3) Press and release the “SET” button to confirm the year, and to set the
month.

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4) The default month “1” will flash. Press and release the “+” button to select
the appropriate month.
5) Press and release the “SET” button to confirm the month, and to set the
date.
6) The default date “1” will flash. Press and release the “+” button to select
the appropriate date.
7) Press and release the “SET” button to confirm the date, and to set the
weekday.
8) The default weekday “MON” (depends on selected language) will flash.
Press and release the “+” button to select the appropriate weekday.
9) Press and release the “SET” button to confirm the calendar settings, and to
advance to select either 12 or 24-hour time display.
VII) 12/24-HOUR SETTING
1) Hold down the “SET” button for 2 seconds (the selected time zone will
flash), press the “SET” button 9 more times, until the “12” hour time
display flashes in the time LCD.
2) Press and release the “+” button to toggle between 12 and 24 hour time.
3) Press and release the “SET” button to confirm the 12/24-hour time display,
and to advance to select either °F or °C.
Note: The “24 hour time” option is not recommended. The LCD display will
not show the first digit “2”.
VIII) SELECTING °F OR °C
1) Hold down the “SET” button for 2 seconds (the selected time zone will
flash), press the “SET” button 10 more times, until the default “°F” flashes
in the time LCD.
2) Press and release the “+” button to toggle between °F and °C.
3) Press and release the “SET” button to confirm the °F or °C selection, and
exit the Program Mode.
FEATURES & OPERATIONS
I) CHANGING DISPLAY MODE (DAY, SECONDS, AND TEMPERATURE)
There are three possible display modes to view the day, seconds, and temperature.
The month & date/ weekday/ indoor temperature is the default.
To change the display:
1) Press and release the “+” button. The display should now show the month &
date/ weekday/ seconds.
2) Press and release the “+” button a second time and the display will now show
the month & date/ seconds/ indoor temperature.

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3) Press and release the “+” button a third time and the display will return to the
normal display.
II) INDOOR TEMPERATURE
The Indoor Temperature appears on the right side of the Date LCD. The temperature
is checked every 10 seconds, and updated whenever there is a change.
MOUNTING
There are two possible ways to mount the atomic clock:
•use of the foldout table stands, or
•wall mounting.
I) FOLDOUT TABLE STAND
The foldout table stand leg is located on the backside,
directly below the battery cover and function buttons.
The hinge is towards the center of the atomic clock, and
the end (with no hinge) needs to be folded in towards the
center. Once the foldout table stand is extended, place the atomic clock in an
appropriate location.
II) WALL MOUNTING
1) Using a straightedge, horizontally space at 3-15/16 of
an inch (100.58mm) three screw positions on a wall.
2) Install three mounting screws (not included) into a
wall within transmission range—leaving
approximately 3/16 of an inch (5mm) extended from
the wall.
SET
Hanging Holes
Foldout Table Stands
Function Buttons

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3) Place the Atomic Clock onto the screws, using the hanging holes on the
backside. Gently pull the Atomic Clock down to lock the screws into place.
MAINTENANCE & CARE
•Extreme temperatures, vibrations, 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 and damage the displays and casings.
•Do not submerge in water.
•Immediately remove all low powered batteries to avoid leakage and damage.
Replace with new batteries only, and of recommended size.
•Opening the casings invalidates the warranty. Do not try to repair the units. Contact
La Crosse Technology for Repairs.
TROUBLESHOOTING
Problem: The LCD is faint.
Solution: 1) Replace the batteries.
Problem: “OFL” appears in the LCD.
Solution: 1) Move unit to an area with warmer or cooler surrounding
temperature. Current surrounding temperatures are outside
measuring range.
Problem: No reception of WWVB signal.
Solution: 1) It may help reception to face the front of the Atomic Clock in
the general direction of Ft. Collins, Colorado.
2) Wait overnight for signal.
3) Be sure the Atomic Clock is at least 6 feet from any electrical
devices, i.e. TV sets, computers, or other radio controlled
clocks.
4) Remove batteries for five minutes, reinsert and leave the unit
alone overnight without pressing buttons.
5) If problems persist contact La Crosse Technology.
Problem: Hour is incorrect (minute and date are correct).
Solution: 1) Be sure correct time zone and daylight saving time are
selected.
Note: For any questions not answered, contact La Crosse Technology with the contact
information found at the end of this instructional manual.

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SPECIFICATIONS
Temperature:
Measuring range: 32°F to 122°F with 0.2°F resolution
(0°C to 50°C with 0.1°C resolution)
Outside range: “OFL” will be displayed
Checking intervals: Every 10 seconds
Power source:
Battery type: 2 x AA, IEC LR6, 1.5V (Alkaline)
Battery life: Approximately 12 months
Dimensions (L x W x H): 8.3 x 1.2 x 8.4 in (211.8 x 30.5 x
214.4mm)