5
SETUP AFTER CHANGING/REPLACING THE BATTERY
1.
After powering up the solar clock, all LCD segments will light
up briefly and it will show the time (12:00), indoor
temperature, date, and indoor humidity.
2.
Next the WWVB time code reception will automatically start.
This reception typically takes 10 minutes in good conditions. If
after 10 minutes the WWVB time has not been received, use
the “SET” key to enter the set-up mode to manually set the
Time, Time Zone and Date (see manual settings below). The
clock will continue to search for WWVB each hour between
12am and 6am. When the clock has successfully connected
with WWVB, it will override the manually set time and date.
NOTE:
When changing the battery:
1.
Be careful that it does not spring free from the contacts.
2.
Press any button 20 times with the battery removed.
3.
Always wait at least 10 minutes after removing battery
before re-inserting; otherwise start up problems may
occur.
WWVB RADIO CONTROLLED TIME
The NIST radio station, WWVB, 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 continually measures every second of
every day to an accuracy of ten billionths of a second a 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.
After 15 minutes the WWVB tower icon in the clock display will start
flashing in the top center of the LCD. This indicates the clock has
detected a radio signal and is trying to receive it. When the time code
is received, the WWVB tower becomes permanently lit and the time
will be displayed.
If the tower icon flashes, but does not set the time or the WWVB
tower does not appear at all, then please take note of the following:
6
Recommended distance to any interfering sources like
computer monitors or TV sets is a minimum of 6 feet (2
meters).
Within ferro-concrete rooms (basements, superstructures), the
received signal is naturally weakened. In extreme cases,
please place the unit close to a window and/ or point its front
or back towards the Fort Collins, Colorado, transmitter.
During nighttime, the atmospheric disturbances are usually
less severe and reception is possible in most cases. A single
daily reception is adequate to keep the accuracy deviation
below 1 second.
NOTE:
In case the solar atomic clock is not able to detect the
WWVB-signal (disturbances, transmitting distance, etc.), the time
can be manually set (please refer to notes on
Manual time setting
).
FUNCTION KEYS
The radio-controlled clock has four easy to use keys:
SET
key
: To enter into the set mode for the following
functions: time zone, DST ON/OFF (daylight saving
time), language, hour, minute, year, month, date,
weekday, 12/24h time format display, ºF/ ºC
temperature unit, and solar mode
+
key
:
To change any values in manual set mode
ALM
key
:
To enter into the alarm set mode
To activate/deactivate the alarm
SNZ
key
:
To activate the snooze function during alarm
To exit manual setting modes
7
Weekday
Indoor
temperature
Low battery
icon (clock)
LCD SCREEN DESCRIPTIONS
The radio-controlled 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 temperature and
indoor humidity.
MANUAL SETTINGS
NOTE:
If the radio-controlled 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 “
Set-up”
the
manual setting modes can be entered by pressing the
SET
key. 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
12/24h time format display
ºF/ºC temperature setting
Solar mode setting
TIME ZONE
The time zone can be set between the +/–12-hour range in LCD2. To
do this:
Date
Indoor
humidity
display
WWVB
time
Radio reception icon
Alarm icon
8
1.
The time zone (LCD2) will start flashing (Default setting "EST
-5“). Select the desired time zone by pressing and releasing
the
+
key.
Time zone settings: -12, -11, -10, ALA, PST, MST, CST, EST,
ATL, -3, -2, -1, 0, +1, +2...+12. (Default: EST)
2.
Press and release the
SET
key to enter the
“DST Setting“
.
DST (daylight saving time)
1.
The ON digit will start flashing on LCD1. Set the DST ON or
OFF by pressing the
+
key.
2.
Press and release the
SET
key to enter the
“Language
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”.
LANGUAGE
The weekdays can be displayed in LCD1 with the pre-set languages:
English (US), Spanish (E), French (F), and German (d):
1.
Set the desired language for the weekday display in LCD1 by
use of the
+
key.
2.
Press and release the
SET
key to enter the mode
“Manual
Time Setting”
.
SET THE TIME MANUALLY
In case the radio-controlled clock is not able to detect the WWVB-
signal (disturbances, transmitting distance, etc.); the time can be
manually set. The clock will then work as a normal Quartz clock.
NOTE
: the time will be displayed with an additional
“
PM
”
for the time
from 12:00 noon until 11:59.
NOTE:
The unit will still try to receive the signal every day despite it
being manually set. When it does receive the signal, it will change
the manually set time into the received time. During reception
attempts the WWVB tower icon will flash. If reception has been
