Setting up using the AC adaptor:
1) Power up all the sensors as described in setting up using batter-
ies above
2) Using the AC adaptor (included), plug it into the mains outlet and
power up the base station by inserting the adaptor jack into the
6.0V DC socket located on the side of the base station
Every time the thermo-hygro sensor is powered up (for example after
a change of batteries), a random security code is transmitted and this
code must be synchronized with the base station to receive weather
data.
When the base station is powered up, a short beep will sound and all
LCD segments will light up for about 5 seconds before it enters into a
15 minute learning mode to learn the sensors security code. After the
learning mode (or by pressing the MIN/MAX key at anytime), the base
station will start the DCF77 radio controlled time reception.
Note for DCF77 Radio Controlled Time:
The time and date display is based on the signal provided by a highly
accurate Caesium atomic clock operated by the Physikalisch Tech-
nische Bundesamt in Braunschweig (Germany). This radio-controlled
clock does not only provide for the weather station’s time and date
display but also functions as the time source for all of this weather
station’s memory and history values using time and date information.
LCD backlight:
When using the power adaptor, the LCD backlight is switched on
continuously. Under battery operation, the LCD backlight is switched
on for 15 seconds intervals when any key is pressed.
6. Operation using cable connection or wireless 433MHz
Cable Connection:
Using this method of operation will provide interference free transfer
of the weather data from the sensors to the base station. The data
sending interval from the sensors to the base station will also be more
frequent compared to using 433MHz transmission and will result in
higher power consumption. Therefore batteries will have a shorter life
span for cable connection compared to using 433MHz.
To operate using cable connection, simply use the enclosed 10 meter
cable and connect the thermo-hygro sensor to the base station. Once
the connection is detected, the base station will automatically con-
tinue reading the data from the sensor.
The user may at any time switch from cable connection to using
433MHz (or vice versa) by simply disconnecting (or connecting) the
cable from the base station to the sensor. When the base station
detects no cable connection to the sensors, the existing data reading
interval is changed to the new reading interval, i.e. using cable con-
nection is every 8 seconds data reading interval or from 32 seconds -
128 seconds intervals when using 433MHz (depending on wind
speed)
Using the AC adaptor to operate the base station will also supply
power to the sensor if the cable is connected to it. Batteries used for
433MHz transmission may be left in the sensor when using cable
connection for power back-up in case of AC power failure. A loss of
power would desynchronize the base station and the sensor and no
weather data will be received. To Synchronize the units so that the
weather data can be received, press and hold the PLUS(+) for 2 sec-
onds. However in general, batteries that will not be used for long
periods should be removed to avoid leakage.
Wireless 433MHz transmission:
Using 433MHz wireless transmission of weather data from the sensor
to the base station will provide users greater freedom as to where
units can be positioned without the need to be restricted by cable.
Note:
If no outdoor weather data is displayed or the signal to the sensors is
lost during setting up, mounting, changing of batteries to the sensor or
plugging or unplugging cables, simply press and hold the PLUS(+)
key for 2 seconds and a short beep will sound to synchronize the
base station to sensors. Without being synchronized, weather data
will not be received.
