Copyright © Lexibook 2005
7
2. CH 123
will be displayed. Select a channel (1, 2 or 3) using the
[D2]
switch. The channel function
allows the receiver to identify each remote sensor. The main unit can receive up to 3 different
remote channels. The preferred channel number (1, 2 or 3) for each individual remote sensor can be
assigned. However, channel 1 is used for collecting data from outdoors and activating the weather
forecast symbols. If you only have one remote sensor, please set it at channel 1 and place it ou
doors.
3.
Select whether the sensor will display the temperature in Celsius or Fahrenheit degrees by pressing
[D1]
.
4.
Press the TX button
[D3]
to synchronize the sensor with your new settings. The icon
will appear
at
[C5]
.
5.
Insert 2 x AA batteries at the back of the main unit.
Note:
the SM1840 comes with one main unit and one remote sensor. If you wish to buy additional
sensors please refer to the section ACCESSORIES at the end of this manual. SM1842 comes with
2 sensors, SM1843 comes with 3 sensor.
SYNCHRONIZATION
1.
The Learn function executes automatically and runs for approximately 2 minutes when the batteries
are first installed in the receiver.
2.
Within these 2 minutes, the main unit picks up the temperature & humidity signals from the remote
sensor and displays the readings. If you only have one remote sensor, the main unit will be
automatically synchronized with the channel set on the remote sensor.
Radio Controlled Clock:
1.
The SM1840 is designed to automatically synchronize its calendar clock once it is brought within a
range of 1500km of the Frankfurt DCF77 radio signal. When the SM1840 is brought within this range,
its auto-control mechanism will override all manual settings.
2.
The clock automatically starts scanning the RF 433MHz signal after new batteries are inserted in the
main unit. When receiving the RF 433MHz radio signal, the Radio Tower symbol “
”starts to blink
[A20]
. A complete reception generally takes about 10 minutes, depending on the strength of the
radio signal.
3.
When the reception is complete, the Radio Tower symbol “
” will stop blinking and remain solid.
4.
For an optimal reception, place the clock away from metal objects and electrical appliances
(i.e. television, computer, monitor, etc.) to minimize interference.
