1
Model WS-8120U
Solar Wall Clock
QUICK SETUP GUIDE
LCD display
Solar panels
%
Function keys
Battery cover
Wall mount
location
Foldable stands
2
Solar-powered Transmitter:
Remote transmission of outdoor
temperature to the Solar Clock by 915
MHz signals
LCD displays outdoor temperature data
Recharge batteries by solar-powered
cells
Wall mounting case
Note:
The solar-powered temperature transmitter uses solar cells to
charge the rechargeable batteries (2 x AAA rechargeable batteries:
included).
Those rechargeable batteries cannot be replaced.
SOLAR TRANSMITTER OPERATION MODES
Important:
Users need to press the reset key to activate the solar transmitter
and link the transmission to the Solar Station (receiver).
It is important to allow sufficient light to reach the solar panel while
activating the solar transmitter. Make sure the lights are on in the setup
room and the solar panel is facing a 60W light bulb or brighter -
do not
cover with hands or other objects.
Solar transmitter RESET key:
The solar transmitter has 3 operations modes:
Normal Operation Mode:
This mode occurs when the battery voltage is higher than 2.5V.
The transmitter will measure and transmit the temperature data to
the solar wall clock every 8 seconds.
The environment brightness is checked every 5 seconds
If a dark environment is detected, it will measure and transmit the
temperature every 16s
Note: only use a small pointed pen to
press the RESET key to re-active the
transmitter into Normal Operation Mode.
Solar panel
RESET key
3
If the battery voltage is dropped lower than 2.8V, it will measure and
transmit the temperature every 16s
If battery voltage is dropped lower than 2.4V, will go into Idle mode
If the solar transmitter is placed into a dark environment for 72
hours, will goes into Stop mode.
If the user cover the solar cell for 10 seconds and press the reset
button, "StP" will be displayed on the LCD. Then the transmitter
enters STOP mode.
Idle Operation Mode:
This mode occurs when the battery voltage drops lower than 2.4V
LCD is turned off.
Does not perform temperature measurement and transmission.
The environment brightness is checked every 5 seconds
If battery voltage is raised higher than 2.5V, will go into Normal
mode
If the solar transmitter is placed into a dark environment for 72
hours, will goes into Stop mode.
Stop Operation Mode:
This mode occurs when the solar transmitter is placed into a dark
environment for 72 hours or the user covers the solar cell for 10
seconds and presses the RESET button.
The transmitter is in a standby state. The unit does not perform any
operations and LCD is off.
Under a bright condition, press the reset button to wake up the
transmitter into normal operation mode (battery voltage is higher
than 2.5V).
This is the most power saving mode.
TO INSTALL / REPLACE BATTERY IN THE SOLAR CLOCK
The Solar Clock can use either the included 2 x alkaline rechargeable
battery (charged by solar panel: included) or 2 x AA alkaline battery (non-
rechargeable; not included).
INITIAL SETUP
It is very important to
follow these steps
:
1.
First, remove the label covering over the battery compartment on
the back.
2.
Open the battery compartment, and
MAKE SURE
that the battery
switch is in the
BATTERY
position (not the SOLAR position).
Battery switch in the BATTERY position
3.
Now locate the battery insulator tab, and gently pull to remove it.
4.
Slide the battery switch to the SOLAR position
5.
Battery switch in the SOLAR position
4
6.
Continue to section titled “
Setup After Changing/Installing the
Battery in the Solar Clock
”
TO INSTALL / REPLACE BATTERY
The included alkaline rechargeable batteries should provide you with
many years of service. If your batteries need to be replaced, we suggest
you use 2 fully charged the AA Alkaline.
Rechargeable batteries should be fully charged before inserting into clock.
Alkaline rechargeable batteries must be used.
If you choose to use non-rechargeable batteries, the battery switch MUST
be moved to the
BATTERY
position (not the SOLAR position). In this
position, the solar cells do not charge the batteries.
REGARDLESS OF THE TYPE OF BATTERIES INSTALLED, THE
BATTERY SWITCH MUST BE IN THE BATTERY POSITION WHEN
THE BATTERIES ARE INSERTED.
If rechargeable batteries are used, the Battery switch should be moved to
the SOLAR position AFTER it is has been inserted.
To use non-rechargeable alkaline batteries:
1.
Remove the included rechargeable AA batteries from the
compartment.
2.
Use the switch to select the alkaline battery (see below).
3.
Insert the batteries into the compartment, observing the correct
polarity (see marking inside battery compartment.
4.
Replace battery cover
Note
: For best performance, batteries should be replaced at least once
every 2 years to maintain the best running accuracy. Ensure that the
batteries used are new and the correct size.
Use switch to
select which type
of battery will be
used before
inserting the
battery into the
compartment
Battery
compartment
cover
