TechnoTrade IT+868MHz Instruction Manual
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LCD
Display
Function
keys
Stand
WEATHER STATION
Instruction Manual
FEATURES:
The Weather Station
DCF Radio controlled time with manual setting option
Time reception ON/OFF setting
Battery
compartment
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Weekday, date and month display (year only in setting mode)
Time zone option (-2h to +5h)
Daylight saving time (DST) setting
Alarm setting
Temperature display in degree Celsius (°C)
Indoor temperature display with MIN/MAX recordings
Outdoor temperature display with MIN/MAX recordings with time and date received
All MIN/MAX recordings can be reset
Indoor and outdoor humidity display in RH%
Weather forecast with weather tendency indicator
Relative air pressure history for the past 12 hours
LCD contrast setting
Low battery indicators
Foldout table stand
Thermo-Hygro Transmitter
Remote transmission of outdoor temperature and humidity to weather
station by 868MHz
Wall mounting case
Mounting at a sheltered place. Avoid direct rain and sunshine
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TO INSTALL AND REPLACE BATTERIES IN THE THERMO-HYGRO
TRANSMITTER
The outdoor thermo-hygro transmitter uses 2 x AAA, IEC LR3, 1.5V batteries.
To install and replace the batteries, please follow the steps below:
1. Remove the battery cover by pushing the battery cover upwards with
your thumb.
2. Insert the batteries, observing the correct polarity (see battery
compartment marking).
3. Replace the battery cover on the unit.
TO INSTALL AND REPLACE BATTERIES IN THE WEATHER STATION
The weather station uses 2 x C, IEC LR14, 1.5V batteries. To install and replace the
batteries, please follow the steps below:
1. Remove the battery cover by sliding the
battery cover upwards.
2. Insert batteries observing the correct
polarity (see marking).
3. Replace compartment cover.
Note:
In the event of changing batteries in any of
the units, all units need to be reset by
following the setting up procedures. This is
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due to a random security code assigned by the transmitter at start-up. This code must be
received and stored by the weather station in the first 3 minutes of power being supplied to
the transmitter.
BATTERY CHANGE:
It is recommended to replace the batteries in all units on an annual basis to ensure optimum
accuracy of these units.
Please participate in the preservation of the environment. Return used
batteries to an authorized depot.
SETTING UP
1. First, insert the batteries in the transmitter (see “To install and replace batteries in
the thermo-hygro transmitter” above).
2. Within 2 minutes of powering up the transmitter, insert the batteries in the weather
station (see “To install and replace batteries in the weather station” above). Once
the batteries are in place, all segments of the LCD will light up briefly. Following the
indoor temperature/humidity and the time as 00:00 will be displayed. If this information
is not displayed on the LCD after 60 seconds, remove the batteries and wait for at least
60 seconds before reinserting them. Once the indoor data is displayed user may
proceed to the next step.
3. After the batteries are inserted, the weather station will start receiving data signal from
the transmitter. The outdoor temperature and humidity data should then be displayed
on the weather station. If this does not happen after 2 minutes, the batteries will need
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to be removed from both units and reset from step 1.
4. In order to ensure sufficient 868 MHz transmission however, the distance between the
weather station and the transmitter should not be more than 100 meters (see notes on
“Positioning” and “868 MHz Reception”).
Note:
In the event of changing batteries of the units, ensure the batteries do not spring free
from the contacts. Always wait at least 1 minute after removing the batteries before
reinserting, otherwise start up and transmission problems may occur.
5. Once the outdoor data reception test period is completed, the DCF tower icon in the
clock display will start flashing in the upper left corner. This indicates that the clock has
detected that there is a radio signal present and is trying to receive it. When the time
code is received, the DCF tower becomes permanently lit and the time will be
displayed.
DCF RADIO CONTROLLED TIME
The time base for the radio controlled time is a Cesium Atomic Clock operated by the
Physikalisch Technische Bundesanstalt Braunschweig which has a time deviation of less
than one second in one million years. The time is coded and transmitted from Mainflingen
near Frankfurt via frequency signal DCF-77 (77.5 kHz) and has a transmitting range of
approximately 1,500 km. Your radio-controlled weather station receives this signal and
converts it to show the precise time in summer or wintertime.
The quality of the reception depends greatly on the geographic location. In normal cases,
there should be no reception problems within a 1,500 km radius of Frankfurt.
DCF reception is done twice daily at 02:00 and 03:00 am. If the reception is not successful at
03:00 am, then the next reception takes place the next hour and so on until 06:00am, or until
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the reception is successful. If the reception is not successful at 06:00 am, then the next
attempt will take place the next day at 02:00 am.
If the tower icon flashes, but does not set the time or the DCF tower does not appear at all,
then please take note of the following:
Recommended distance to any interfering sources like computer monitors or TV sets is
a minimum of 1.5 - 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 Frankfurt 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.
FUNCTION KEYS:
Weather station:
The weather station has 4 easy to use function keys:
SET key
+ key
MIN/MAX key
ALARM key
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SET key
Press and hold for 2 seconds to enter manual setting modes: LCD contrast, time zone,
time reception ON/OFF, DST ON/OFF, manual time setting and calendar
To stop the alarm sound
+ key
To increase/change values in setting modes
Toggle between time / date / indoor humidity / seconds display
To stop the alarm sound
MIN/MAX key
To toggle between the indoor and outdoor MIN/MAX temperature
To decrease/change values in setting modes
Press and hold for 3 seconds to reset ALL indoor/outdoor minimum/maximum
temperature recordings to current readings
To stop the alarm sound
ALARM key
To activate/deactivate the alarm and display alarm time
Press and hold for 2 seconds to enter the alarm setting mode
To stop the alarm sound
To exit the manual setting mode
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LCD SCREEN
The LCD screen is split into 3 sections displaying the information for time/calendar, indoor
data, weather forecast and air pressure history, and outdoor data.
DCF signal
reception icon
Low battery
indicator
(weather station)
Weather
forecast icon
Air pressure
history bar
graph
Outdoor data
signal
reception
indicator *
Weather
tendency
indicator
Low battery
indicator (outdoor
transmitter)
Outdoor
temperature
in °C
MIN/MAX outdoor
temperature display
Weekday
Indoor
Temperature
in °C
Time
Alarm icon
Outdoor humidity
display in RH%
Indoor humidity
display in RH%
Summer time
indicator
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