TechnoTrade IT+868MHz Instruction Manual

30

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

31

 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

32

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

33

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

34

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

35

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

36

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

37

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

38

* When the signal is successfully received by the weather station, the outdoor transmission
icon will be switched on. (If not successful, the icon will not be shown on LCD). The user can
then easily see whether the last reception was successful (icon on) or not (icon off).

MANUAL SETTINGS

The following settings can be changed when pressing and holding the SET key:

 LCD contrast setting
 Time zone setting
 Time reception ON/OFF setting
 Daylight saving time (DST) ON/OFF setting
 Manual time setting
 Calendar setting

LCD CONTRAST SETTING

The LCD contrast can be set within 8 levels, from LCD 0 to LCD 7 (Default is LCD 3):

1. The LCD contrast level starts flashing.

2. Use the + or MIN/MAX key to select the level of contrast desired.

3. Confirm with the SET key and enter the Time Zone Setting.

Flashing

39

TIME ZONE SETTING:

The time zone default of the weather station is “0”. To set a different time zone:

1. The current time zone value starts flashing.

2. Use the + or MIN/MAX key to set the time zone. The range runs from -2h to +5h hours
in 1-hour intervals.

3. Confirm with the SET key and enter the Time Reception ON/OFF Setting.

TIME RECEPTION ON/OFF SETTING

In area where reception of the DCF-77 time signal is not possible, the DCF-77 time reception
function can be turned OFF. The clock will then work as a normal quartz clock. (Default
setting is “1” = ON).

1. The digit “1” will start flashing on the LCD.

2. Use the + or MIN/MAX key to turn OFF (“0” = OFF) the time reception function.

3. Confirm with the SET key and enter the Daylight Saving Time (DST) ON/OFF
Setting.

Flashing

Flashing

40

Note:

 If the Time Reception function is turned OFF manually, the clock will not attempt any

reception of the DCF time as long as the Time Reception OFF function is activated.

 The time reception “ “ and the “DCF” icons will not be displayed on the LCD.

DAYLIGHT SAVING TIME (DST) ON/OFF SETTING

The daylight saving time (DST) function can be set ON/OFF. Default setting is “1” = ON:

1. The digit “1” will start flashing on the LCD.

2. Use the + or MIN/MAX key to turn OFF (“0” = OFF) the daylight saving function.

3. Confirm with the SET key and enter the Manual Time setting.

MANUAL TIME SETTING:

In case the weather station cannot detect the DCF-signal (for example due to disturbances,
transmitting distance, etc.), the time can be manually set. The clock will then work as a
normal quartz clock.

Flashing

Hour flashing

Minutes flashing

41

1. The hour digit will start flashing.

2. Use the + or MIN/MAX key to set the hour. Keep holding the key allows the digit to
advance faster.

3. Press again the SET key to set the minutes. The minute digits start flashing.

4. Use the + or MIN/MAX key to set the minutes. Keep holding the key allows the digit to
advance faster

5. Confirm with the SET key and enter the Calendar setting.

Note:

 The unit will still try and receive the signal 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 DCF tower icon will flash. If reception has been unsuccessful,
then the DCF tower icon will not appear but reception will still be attempted the
following day.

 The time reception “ “ and the “DCF” icons will not be displayed on the LCD after

manual time setting.

CALENDAR SETTING

1. The year digits will start flashing. The range runs from 2011 to 2025 (default is 2011).

Weekday

Year

Date. Month.

42

2. Use the + or MIN/MAX key to set the year. Keep holding the key allows the value to

advance faster.

3. Press the SET key to confirm and enter the month setting mode.

4. The month digit will be flashing. Use the + or MIN/MAX key to set the month. Keep

holding the key allows the value to advance faster.

5. Press the SET key to enter date setting.

6. The date digit will be flashing. Use the + or MIN/MAX key to set the date. Keep holding

the key allows the value to advance faster.

7. Confirm with the SET key and exit the manual setting.

Note:

The weekday is automatically displayed above the time in short form (from Monday to
Sunday): MO / TU / WE / TH / FR / SA / SU.

TO EXIT THE MANUAL SETTING MODE

To exit the manual setting mode anytime during the manual setting, press the ALARM key.
The mode will return to normal time display.

ALARM SETTING

To set the alarm:

1. Press and hold ALARM key for 3 seconds until the alarm time shown.

Alarm time (flashing)

Alarm indicator (ON)

43

Rainy

2. The hour digit will be flashing. Use the + or MIN/MAX key to adjust the hour. Keep
holding the key allows the value to advance faster.

3. Use the ALARM key again, and the minute digits will be flashing. Press + or MIN/MAX
key to set the minute. Keep holding the key allows the value to advance faster.

4. Press the ALARM key to confirm the setting.

Note:
To activate/deactivate the alarm function, press the ALARM key once. The display of the
alarm icon represents that the alarm is "ON".
The duration of alarm sounding is 2 minutes. Press any key will stop the alarm sound.

WEATHER FORECASTING ICONS:

The weather icons in the second section of LCD can be displayed in any of the following
combinations:

For every sudden or significant change in the air pressure, the weather icons will update
accordingly to represent the change in weather. If the icons do not change, then it means
either the air pressure has not changed or the change has been too slow for the weather
station to register. However, if the icon displayed is a sun or raining cloud, there will be no

Sunny

Cloudy with sunny intervals

44

change of icon if the weather gets any better (with sunny icon) or worse (with rainy icon)
since the icons are already at their extremes.

The icons displayed forecasts the weather in terms of getting better or worse and not
necessarily sunny or rainy as each icon indicates. For example, if the current weather is
cloudy and the rainy icon is displayed, it does not mean that the product is faulty because it is
not raining. It simply means that the air pressure has dropped and the weather is expected to
get worse but not necessarily rainy.

Note:
After setting up, readings for weather forecasts should be disregarded for the next 12-24
hours. This will allow sufficient time for the weather station to collect air pressure data at a
constant altitude and therefore result in a more accurate forecast.

Common to weather forecasting, absolute accuracy cannot be guaranteed. The weather
forecasting feature is estimated to have an accuracy level of about 75% due to the varying
areas the weather station has been designed for use. In areas that experience sudden
changes in weather (for example from sunny to rain), the weather station will be more
accurate compared to use in areas where the weather is stagnant most of the time (for
example mostly sunny).

If the weather station is moved to another location significantly higher or lower than its initial
standing point (for example from the ground floor to the upper floors of a house), discard the
weather forecast for the next 12-24 hours. By doing this, the weather station will not mistake
the new location as being a possible change in air-pressure when really it is due to the slight
change of altitude.

45

WEATHER TENDENCY INDICATOR

The weather tendency indicators (located on the left side of the weather icons) are working
together with the weather icons. When the indicator points upwards, it means that the air­pressure is increasing and the weather is expected to improve, but when indicator points
downwards, the air-pressure is dropping and the weather is expected to become worse.

Taking this into account, one can see how the weather has changed and is expected to
change. For example, if the indicator is pointing downwards together with cloud and sun
icons, then the last noticeable change in the weather was when it was sunny (the sun icon
only). Therefore, the next change in the weather will be cloud with rain icons since the
indicator is pointing downwards.

Note:
Once the weather tendency indicator has registered a change in air pressure, it will remain
permanently visualized on the LCD.

AIR PRESSURE HISTORY (ELECTRONIC BAROMETER WITH BAROMETRIC
PRESSURE TREND)

The right side of the second section of the LCD shows the air pressure history bar graph.

Air pressure trend over the
last 12 hours

46

The bar graph indicates the air pressure history trend over the last 12 hours in 7 intervals: 0h,

-3h, -6h, -9h and -12h. The “0h” represents the current full hour air pressure recording. The

columns represent the “hPa” (0, ±1, ±3, ±5) at specific time. The “0” in the middle of this scale

is equal to the current pressure and each change (±1, ±3, ±5) represents how high or low in
“hPa“ the past pressure was compared to the current pressure.
If the bars are rising it means that the weather is getting better due to the increase of air
pressure. If the bars go down, it means the air pressure has dropped and the weather is
expected to get worse from the present time “0h“.

Note:

For accurate barometric pressure trends, the weather station should operate at the same
altitude for recordings (i.e. it should not be moved from the ground to the second floor of the
house). When the unit is moved to a new location, discard readings for the next 12 hours.

INDOOR TEMPERATURE/HUMIDITY DATA

The indoor temperature and humidity data are automatically updated and displayed on the
first section of the LCD.

Indoor relative
humidity in
RH%

Indoor

temperature

in ºC

47

OUTDOOR TEMPERATURE/HUMIDITY DATA

The last LCD section shows the outdoor temperature and humidity, and the reception
indicator.

TOGGLING AND RESETTING THE TEMPERATURE MIN/MAX DATA
TO VIEW THE MIN/MAX TEMPERATURE DATA

Press the MIN/MAX key several times to view the MIN/MAX indoor and outdoor temperature
sequentially.

Note: the outdoor MIN/MAX temperature records will also display the recorded time and
date.

Outdoor humidity
in RH%

Outdoor
reception
icon

Outdoor

temperature

in C

Recorded
time of the
outdoor
MIN/MAX
records

Recorded
date of the
outdoor
MIN/MAX
records

MAX outdoor
temperature

MAX icon (outdoor
temperature)

48

TO RESET TEMPERATURE MIN/MAX DATA

Press and hold MIN/MAX key for 3 seconds to reset all the indoor and outdoor
temperature to current temperatures.

ABOUT THE THERMO-HYGRO TRANSMITTER

The range of the thermo-hygro transmitter may be affected by the temperature. At cold
temperatures the transmitting distance may be decreased. Please bear this in mind when
positioning the transmitters. Also the batteries may be reduced in power for the thermo-hygro
transmitter.

CHECKING FOR 868MHz RECEPTION

If the outdoor temperature and humidity data are not being received within three minutes
after setting up (or outdoor display always shows “- -.-” in the outdoor section of the weather
station during normal operation), please check the following points:

1. The distance of the weather station or transmitters should be at least 2 meters away

from any interfering sources such as computer monitors or TV sets.

2. Avoid placing the transmitters onto or in the immediate proximity of metal window

frames.

3. Using other electrical products such as headphones or speakers operating on the

868MHz-signal frequency may prevent correct signal transmission or reception.
Neighbors using electrical devices operating on the 868MHz-signal frequency can
also cause interference.

Note:
When the 868MHz signal is received correctly, do not re-open the battery cover of either the
transmitter or weather station, as the batteries may spring free from the contacts and force a

49

false reset. Should this happen accidentally then reset all units (see “Setting up” above)
otherwise transmission problems may occur.
The transmission range is around 100 meters from the thermo-hygro transmitter to the
weather station (in open space). However, this depends on the surrounding environment and
interference levels. If no reception is possible despite the observation of these factors, all
system units have to be reset (see “Setting up” above).

POSITIONING THE WEATHER STATION

Foldout table stand:

The foldout table stand leg is located on the backside. Pull the stand out
from the bottom center edge of the weather station, below the battery
compartment. Once the foldout table stand is extended, place the weather
station in an appropriate location.

POSITIONING THE THERMO-HYGRO TRANSMITTER

Mounting at a sheltered place. Avoid direct rain and sunshine.

The thermo-hygro transmitter can be placed onto any flat surface or wall mount
using the bracket which doubles as a stand or wall mount base.

50

To wall mount:

1. Secure the bracket onto a desired wall using the screws and plastic
anchors.

2. Clip the transmitter onto the bracket.

Note:
Before permanently fixing the thermo-hygro to the wall base, pace all units in the
desired locations to check that the outdoor temperature and humidity readings
are receivable. In event that the signal is not received, relocate the thermo-hygro
transmitter or the weather station slightly as this may help the signal reception.

CARE AND MAINTENANCE:

 Extreme temperatures, vibration and shock should be avoided as these may cause

damage to the units and give inaccurate forecasts and readings.

 When cleaning the display and casings, use a soft damp cloth only. Do not use

solvents or scouring agents as they may mark the LCD and casings.

 Do not submerge the units in water.
 Immediately remove all low powered batteries to avoid leakage and damage. Replace

only with new batteries of the recommended type.

 Do not make any repair attempts to the units. Return it to their original point of

purchase for repair by a qualified engineer. Opening and tampering with the units may
invalidate their guarantee.

 Do not expose the units to extreme and sudden temperature changes, this may lead

to rapid changes in forecasts and readings and thereby reduce their accuracy.

51

SPECIFICATIONS

Temperature measuring range:

Indoor : -9.9ºC to +59.9ºC with 0.1ºC resolution
+14.2ºF to +139.8ºF with 0.2ºF resolution
(“OF.L” displayed if outside this range)
Outdoor : -39.9ºC to +59.9ºC with 0.1ºC resolution

-39.8ºF to +139.8ºF with 0.2ºF resolution
(“OF.L” displayed if outside this range, “---“ displayed if no transmitter signal)

Humidity measuring range:

Indoor humidity range : 20% to 95% with 1% resolution (Display “- -“ if temperature is
OF.L; display “19%“ if < 20% and “96%” if > 95%)
Outdoor humidity range : 1% to 99% with 1% resolution (Display “- -“ if outside

temperature is OF.L; display 1% if < 1% and 99% if > 99%)
Data checking intervals:
Indoor : every 16 seconds
Outdoor : every 4 seconds
Transmission range : up to 100 meters (open space)
Power consumption (alkaline batteries recommended):
Weather station : 2 x C, IEC, LR14, 1.5V

Battery life : up to 24 months

Transmitter : 2 x AAA, IEC, LR3, 1.5V

Battery life : up to 12 months

Dimensions (L x W x H):

Weather station : 170.4 x 34.3 x 148.8 mm
Transmitter : 36 x 16 x 102.6 mm

52

LIABILITY DISCLAIMER:

 The electrical and electronic wastes contain hazardous substances. Disposal of

electronic waste in wild country and/or in unauthorized grounds strongly damages the
environment

 Please contact your local or/and regional authorities to retrieve the addresses of legal

dumping grounds with selective collection

 All electronic instruments must from now on be recycled. User shall take an active part

in the reuse, recycling and recovery of the electrical and electronic waste.

 The unrestricted disposal of electronic waste may do harm on public health and the

quality of environment.

 This product must however not be thrown in general rubbish collection points.
 As stated on the gift box and labeled on the product, reading the “User manual” is

highly recommended for the benefit of the user.

 The manufacturer and supplier cannot accept any responsibility for any incorrect

readings and any consequences that occur should an inaccurate reading take place.

 This product is not to be used for medical purposes or for public information.
 This product is only designed to be used in the home as indication of the future

weather and is not 100% accurate. Weather forecasts given by this product should be
taken only as an indication and not as being totally accurate.

 The specifications of this product may change without prior notice.
 This product is not a toy. Keep out of the reach of children.

 No part of this manual may be reproduced without written consent of the manufacturer.

53

R&TTE Directive 1999/5/EC

Summary of the Declaration of Conformity : We hereby declare that this wireless transmission

device does comply with the essential requirements of R&TTE Directive 1999/5/EC.