La Crosse Technology WT-3128H User Manual
RADIO CONTROLLED ANALOG CLOCK
WT-3128H
Quick Setup Instructions
Welcome to the world of atomic timekeeping technology. We hope you will enjoy
the convenience of never having to set your clock again and the confidence of
knowing exactly what time it is
.
A locking pin may be placed into the movement at the factory to prevent
shifting of the hands during shipment. Remove the locking pin directly
below the Reset button. This will unlock the hands and enable the clock to
set itself after receiving the signal.
Set the clock to your time zone by moving the indicator arrow to appropriate
zone: P (UTC-8 Pacific Time), M (UTC-7 Mountain Time), C (UTC-6 Central
Time), E (UTC-5 Eastern Time)
Enable the Daylight Savings Time Auto Adjust feature by moving the DST
switch to “ON”. If you are in a time zone that does not follow DST, make
sure you set the DST mode to “OFF”. The Daylight Savings Time feature is
disabled when the switch is set to “OFF”.
Insert 1 new AA, LR6 1.5 volt ALKALINE battery in the digital clock battery
compartment according to the polarity marked on the case, then 1 new
battery AA, LR6 1.5 V into the analog clock battery compartment.
Once the battery is installed in the analog movement, the radio reception
mode is activated and the second, minute and hour hands will automatically
reset to the 12:00 position. Once the hands are in the 12:00 position, the
movement will start searching for the radio signal. The search procedures
takes approximately 3 to 10 minutes after all hands have set to the 12:00
position. If a signal is found within the first 3 to 10 minutes, the clock will set
to the correct time. If the clock does not receive a radio signal soon after
activated, the clock will start running from the 12:00 position and will
continue to run. In this case, do not attempt to reset the hands manually
even though the time displayed on the clock is incorrect. The clock is
synchronizing to the WWVB signal and once the radio signal is decoded, the
hands will automatically adjust to the correct time.
The WAVE button can be used to attempt an enforced signal receipt. To
activate, hold the WAVE button down for 3+ seconds. Once the WAVE
feature is activated, the hands will automatically reset to the 12:00 position,
and the movement will attempt to enforce a signal receipt from Fort Collins,
CO. If the movement successfully receives the signal, the clock will reset
automatically to the correct time. Generally, the signal enforced receipt
takes approximately 3-8 minutes. If the clock still fails to receive the signal
while in the WAVE mode, the clock will automatically leave the WAVE
mode. In this case, set the clock manually according to instructions below
and the time keeping function will be controlled by the movement’s microCPU.
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WAVE BUTTON
BATTERY
COMPARTMENT
Manual Set: On rare occasions in certain areas, the clock may not be able
to utilize the radio-controlled function because of either 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. If it is necessary to set
the clock manually, press and hold the SET button for 3+ seconds to
activate the manual mode. Once the clock is in manual mode, there are two
ways to move the minute hand forward. Hold the SET button down to move
the minute hand forward consistently. Or, press the SET button rapidly
(more than once per second) to move the minute hand forward step by step
(in minute increments). Use these features to move the minute hand forward
until the correct time is set. The clock will automatically leave manual mode
after the SET button is not pressed for 6+ seconds.
NOTE: When you manually set the analog clock the digital clock will set to
the same time.
Reset: If the clock does not respond to the various function modes, you can
reset the clock by pressing the RESET button on the movement case.
Internal Synchronization: Once the clock has been set correctly by the
radio signal, the clock’s CPU operates continuously. To ensure accuracy,
the clock synchronizes the position of the second and minute hands to the
time calculated by the CPU every day. Second hand synchronization occurs
at 1:30 a.m. and 9:30 a.m. and minute hand synchronization occurs
between 1:50 and 2:01 am every day.
Signal Interfere n ce : In some cases, the signal can be 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 wish to move the clock to a different
location. Try to place it near an outside wall closest to the direction of
Colorado. Avoid placing the clock near electrical items such as TVs,
microwave ovens and computers.
SET BUTTON
RESET BUTTON
WAVE BUTTON
BATTERY
COMPARTMENT
TIME ZONE SWITCH
DST ON/OFF BUTTON
Daylight Saving Time
The National Institute of Standards and Technology and WWVB encode a special
DST “bit” in the WWVB transmission for DST. Your La Crosse Technology clock
will read this information and automatically advance the hands one hour in the
spring and eleven hours in the fall.
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