Conrad 5.1121.IT Instruction Manual

WIRELESS 868 MHz WEATHER STATION

Instruction manual

Cat. No. 35.1121.IT

Thank you for choosing this instrument from TFA.

BEFORE YOU USE IT

Please be sure to read the instruction manual carefully.

This information will help you to familiarise yourself with your new device, learn all of its functions and parts,
find out important details about its first use and how to operate it and get advice in the eve nt of faults.
Following the instruction manual for use will prevent damage to the device and loss of your statutory rights
arising from defects due to incorrect use.

We shall not be liable for any damage occurring as a result of not following these instructions.
Likewise, we take no responsibility for any incorrect readings and for any consequences which may
result from them.
Please take particular note of the safety advice!
Please look after this manual for future reference.

SCOPE OF SUPPLY:

•

Weather station (basic unit)

•

Outdoor transmitter

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Instruction manual

FIELD OF OPERATION AND ALL OF THE BENEFITS OF YOUR NEW WEATHER STATION AT
A GLANCE:

•

24 hour time display (seconds displayed by pressing the SUN button)

•

Calendar Display: weekday, day and month (year only in setting mode)

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Daylight saving time (DST) function selectable

•

Daily alarm function

•

Weather forecast with weather tendency indicator

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Temperature display in degree Celsius (°C)

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Indoor temperature display with MIN/MAX recordings

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Outdoor temperature display with MIN/MAX recordings, time and date

•

All MIN/MAX temperature recordings can be reset

•

Indoor and outdoor relative humidity displ ay in RH%

•

Display of relative or absolute air pressure i n hPa

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Relative air pressure with adjustable reference value

•

Relative air pressure history bar graph for the past 12 hours

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Display of sunrise time, sunset time and sun duration in 150 European cities

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Display of 8 symbols to represent the current moon phase

•

LCD contrast setting

•

Low battery indicators

•

Table standing or wall mounting

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LCD

display

FOR YOUR SAFETY:

•

The product is exclusively intended for the fi eld of application described above. The prod uct should
only be used as described within these instructions.

•

Unauthorised repairs, modifications or changes to the product are prohibited.

•

The product is not to be used for medical purpose or for public information, but is intended solely for
home use.

Caution!
Risk of injury:

•

•

•

! Important information on product safety!

•

•

ELEMENTS

The weather station

Thermo-hygro Transmitter

Keep this instrument and the batteries out of reach of children.
Batteries must not be thrown into the fire, short-circuited, taken apart or recharged. Ri sk of explosion!
Batteries contain harmful acids. Low batteri es should be changed as soon as possible to preve nt
damage caused by a leaking battery. Never use a combination of old and new batteries together or
batteries of different types. Wear chemical-resistant protective gloves and glasses when handling
leaked batteries.

Do not expose the instrument to extreme temperatures, vibration or shock.
The outdoor transmitter is protected against splash water, but is not watertight. Choose a shady and
dry position for the transmitter.

Function
buttons

Hanging hole

Battery
compartment
cover

Foldout
stand

•

Remote transmission of outdoor temperature and humidity to weather station by
868MHz

•

Alternately display the outdoor temperature and humidity readings on LCD

•

Wall mounting case

•

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

20

TO INSTALL AND REPLACE BATTERIES IN THE THERMO-HYGRO TRANSMITTER

TO INSTALL AND REPLACE BATTERIES IN THE WEATHER STATION

Battery replacement

•

•

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 because a security code is assigned by the transmitter at start-up and this code must be
received and stored by the weather station i n the first 3 minutes of power being supplied to it.

SETTING UP

Note: This weather station receives only one outdoor transmitter.

1. First, insert the batteries in the transmitter (see “To install and replace batteries in the thermo-

2. Within 30 seconds of powering up the transmi tter, insert batteries in the weather station (see “To

The outdoor thermo-hygro transmitter uses 2 x AAA, IEC LR3, 1.5V batteries. W hen the
batteries need to be replaced, the low battery symbol will appear on the LCD of the outdoor
transmitter. To install and replace the batteri es, please follow the steps below:

1. Remove the cover.

2. Insert batteries, observing the correct polari ty (see marking).

3. Replace the battery cover on the unit.

The weather station uses 2 x C, IEC LR14, 1.5V batteries.
To install and replace the batteries, please foll ow the steps
below:

1. Remove the cover at the back of the weather
station.

2. Insert batteries, observing the correct polari ty (see
marking).

3. Replace the compartment cover.

Replace the batteries when the battery symbol of the weather station appears near the air pressure
display.
When the batteries of the transmitter are used up, the low battery icon appears above the o utdoor
humidity display of the weather station.

hygro transmitter” above).

install and replace batteries in the weather station” above). Once the batteries are in place, all

segments of the LCD will light up briefly and a short signal tone will sound. Then the i ndoor
temperature, humidity and the time as 0:00 will be displayed. If this information is not di splayed on the
LCD after 1 minute, remove the batteries and wait for at least 1 minute before reinserti ng them. Once
the indoor data is displayed user may proceed to the next step.

21

3. After the batteries are inserted, the weather station will start receiving data signal from the transmitter.

+

button

The outdoor temperature and humidity data sho uld then be displayed on the weather station. If this
does not happen after 2 minutes, the batteri es will need to be removed from both units and reset from
step 1.

4. In order to ensure successful 868 MHz transmission, the distance between the weather station and
the transmitter should be within 100 meters (see notes on “Positioning” and “868 MHz Reception”).

FUNCTION BUTTONS

Weather station:

The weather station has five easy to use function buttons:

SET button

•

Press and hold for 3 seconds to enter manual setting modes: LCD contrast, Daylight Savi ng Time
ON/OFF, manual time, calendar and relative air pressure reference value

•

To stop the alarm sound

•

To exit alarm setting mode and country/city setting mode

•

To toggle between relative and absolute air press ure display

+ button

•

To increase/change values in setting modes

•

To stop the alarm sound

MIN/MAX button

•

Press the button to switch among the display of MIN/MAX indoor temperature and MIN/MAX outdoor
temperature records

•

To decrease/change values in setting modes

•

Press and hold the button for 3 seconds to reset ALL indoor/outdoor MAX/MIN temperature
recordings to current readings

•

To stop the alarm sound

ALARM button

•

To activate/deactivate the alarm and display al arm time

•

Press and hold for 3 seconds to enter the al arm setting mode

•

To stop the alarm sound

•

To exit manual setting mode and country/ci ty setting mode

SUN button

•

To switch among the display of date (normal mode), seconds, sun duration and city

SET button

MIN/MAX button

SUN button

ALARM button

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•

Low battery

indicator (station)

Weather

tendency indicator

Outdoor

temperature

Indoor

Moon phase

indicator

Press and hold for 3 seconds to enter country/city setting mode

•

To stop the alarm sound

•

To exit manual setting mode and alarm setti ng mode

LCD SCREEN

temperature in °C

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

MANUAL SETTINGS

The following settings can be changed when pressing the SET button:

•

•

•

•

•

Press and hold the SET button for about 3 seco nds to advance to the setting mode:

LCD CONTRAST SETTING

Sunrise time

Weather

forecast icon

in °C

MIN/MAX outdoor temperature records

LCD contrast
Daylight saving time (DST) ON/OFF
Manual time
Calendar
Relative air pressure reference value

Time

Weekday

Summer time indicator

Outdoor humidity display in RH%

Alarm icon

Digit flashing

Indoor humidity
display in RH%

Calendar

Sunset time

Air pressure
history bar graph

Air pressure in hPa
(relative or absolute)

Low battery indicator
(transmitter)

Outdoor data signal
reception indicator *

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

1. The digit starts flashing

2. Press the + button or MIN/MAX button to set the level of contrast desired.

3. Press the SET button to enter the “Daylight saving time On/Off setting,” or exit the setting mode by
pressing the ALARM button or SUN button.

DAYLIGHT SAVING TIME ON/OFF SETTING

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

1. “ON” will flash on the LCD with "dSt" displayed.

2. Use the + button to turn the daylight saving time function ON or OFF.

3. Press the SET button to enter the “Manual time setting” or exit the setting mode by pressing the

ALARM button or SUN button.

MANUAL TIME SETTING

To set the clock:

1. The hour digit in the time section will start flashing.

2. Use the + button to increase or MIN/MAX button to decre ase the value. Keep holding the button
allows the value to advance faster.

3. Press the SET button to enter minute setting.

4. The minute will be flashing. Use the + button to increase or MIN/MAX button to decrease the value.

5. Press the SET button to enter the “Calendar Setting” or exit the setting mode by pressi ng the

ALARM button or SUN button.

CALENDAR SETTING

1. The year digits will start flashing.

2. Use the + button to increase or MIN/MAX button to decre ase the value. The range runs from 2011 t o

2025.

3. Press the SET button to enter the month setti ng mode.

Hour (flashing)

Flashing

Minutes (flashing)

Weekday

Year (flashing)

Day. Month.

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4. The month digit will be flashing. Use the + button to increase or MIN/MAX button to decrease the
value.

5. Press the SET button to enter day setting.

6. The day digit will be flashing. Use the + button to increase or MIN/MAX button to decrease the value.
Keep holding the button allows the value to adva nce faster.

7. Press the SET button to enter the “Relative air pressure reference value setting”, or exit the setting
mode by pressing the ALARM button or SUN button.

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

RELATIVE AIR PRESSURE REFERENCE VALUE SETTING

Relative air pressure is referred as sea level’s pressure and has to be adjusted first to your local altitude.
Ask for the present atmospheric pressure of your home area (local weather service, www, optician,
calibrated instruments in public buildings, ai rport).
The default relative pressure value is 1013 hPa (29.92 inHg). This can be manually set to a nother value
within the range of 960 – 1040 hPa (28.35 – 30.72 i nHg) for a better reference.

1. The current relative pressure value will start flashing

2. Use the + button or MIN/MAX button to increase or decreas e the value. Keep holding the button will
allow the value to change faster.

3. Press the SET button to exit the setting mode.

LOCATION SETTING FOR SUNRISE/SUNSET TIME

The weather station will automatically update the sunrise, sunset and sun duration time at 00:00, based on
the city location, the date, time and DST setti ngs.

1. Press and hold the SUN button for 3 seconds to enter the Location setting mode.

2. The short form of country name will start flashing. Use the + button or MIN/MAX button to select the
country.

Note: It can be chosen from among 26 European countries and 150 cities. Every country/city is displayed in
short code. See the list at the beginning of this handbook for all the country/ city codes.

3. With the desired country selected, press the SUN button to enter City setting mode.

4. The City code will start flashing. Use the + button or MIN/MAX button to select the City. Keep holding
the button allows the value to advance faster.

Flashing

Country code (flashing)

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Alarm time

Sun duration

(hours : minutes)

Sunrise

icon

5. Confirm with the SUN button, or exit the setting mode by pressing the SET button or ALARM button
without saving the changes.

6. The city’s sunrise, sun duration and sunset ti me will be displayed in a few seconds.

7. Press the SUN button twice to go back to normal date display.

DISPLAY OF SUN DURATION TIME

1.

In normal date mode, press the SUN button twice to display the sun duration time (total number of
hours of sunlight on the day).

2.

Press the SUN button again will display the City selected. (See “LOCATION SETTNG FOR

SUNRISE/SUNSET TIME”)

3.

Press the SUN button again to go back to normal date display.

Sunrise time

City Code (flashing)

Sunset time

Sunset
icon

ALARM SETTING

To set the daily alarm:

1. Press the ALARM button. ALM and the alarm time appear in the display.

2. Press and hold ALARM button. The hour di gits are flashing. Set the hour with the + or MAX/MIN

3. Press the ALARM button again. The minute di gits are flashing. Set the minutes with the + or MAX/MIN

4. Confirm the setting with the ALARM button. The actual time appears in the display.

5. To activate/deactivate the alarm function, press the ALARM button shortly. The displ ay of the (((•)))

Note: The duration of alarm sounding is 2 minutes. Press any button will stop the alarm sound.

TO EXIT SETTING MODES

To exit the setting modes anytime, user can wait for automatic timeout to return to normal display.

(flashing)

button.

button.

icon represents that the alarm is "ON".

Alarm On indicator

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WEATHER FORECASTING ICONS

Weather icons can be displayed in any of the following combinations:

For every sudden or significant change in the atmospheric pressure, the weather icons will update
accordingly to represent the change in weather. If the icons do not change, then it means ei ther the
atmospheric pressure has not changed or the change has been too slow for the weather stati on to register.
However, if the icon displayed is a sun or rai ning cloud, there will be no 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 i n terms of getting better or worse and not necessarily sunny or
rainy as each icon indicates. For example, i f 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 atmospheric
pressure has dropped and the weather is expected to get worse but not necessarily rainy.

Note:
After setting up the weather station the readi ngs for weather forecasts should be disregarded for the next
12-24 hours. This will allow sufficient time for the weather station to collect atmospheric 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 sudde n changes in weather (for example from s unny 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 i nitial 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 stati on will not mistake the new location as bei ng a possible change
in atmospheric pressure when really it is due to the slight change of altitude.

WEATHER TENDENCY INDICATOR

Working together with the weather icons is the weather tendency indicator (located on the l eft of the weather
icons). When the arrow points upwards, it means that the air pressure is increasing and the weather is
expected to improve, but when arrow 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 l ast 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 regi stered a change in air pressure, it will remain permanently
visualized on the LCD.

Sun

Sun with cloud

Cloud with rain

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AIR PRESSURE HISTORY (ELECTRONIC BAROMETER WITH BAROMETRIC PRESSURE

Indoor

temperature

ºC

TREND)

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

The bar graph indicates the air pressure history trend over the last 12 hours in 5 interval s: 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). W hen the unit is
moved to a new location, discard readings for the next 12 hours.

ABSOLUTE/RELATIVE AIR PRESSURE

Press the SET button to toggle between rel ative (“rel”) and absolute (“abs”) air pressure displays.

Note:

Absolute pressure is the actual atmospheri c pressure measured by the main unit. Rel ative pressure is
referred as sea level’s pressure and has to be adjusted first to your local altitude (see “Relative air

pressure reference value setting).

INDOOR TEMPERATURE/HUMIDITY DATA

The indoor temperature and humidity data are a utomatically updated and displayed on the fi rst section of
the LCD.

in

Absolute air pressure display

Air pressure trend over
the last 12 hours

Indoor relative
humidity in RH%

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OUTDOOR TEMPERATURE/HUMIDITY DATA

Outdoor temperature

C

The last LCD section shows the outdoor temperature, MIN/MAX temperature records, humidity and the
signal reception indicator.

TO VIEW THE MIN/MAX TEMPERATURE DATA

Press the MIN/MAX button 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.

in °

Recorded time of the
outdoor MIN/MAX record

Recorded date of the outdoor
MIN/MAX record

Outdoor humidity
in RH%

Outdoor reception
icon

MAX outdoor temperature

RESETTING THE MAXIMUM/MINIMUM RECORDS

In normal display mode, press and hold the MIN/MAX button for 3 seconds. This will reset ALL minimum
and maximum temperature records to current temperatures.

THE MOON PHASE ICONS

The weather station displays 8 different moon phase icons. The current moon phase i s indicated with a bar
segment according to the set calendar.

THERMO-HYGRO TRANSMITTER

The reception distance 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 placing the
transmitter. Also the batteries may be reduced in power for the thermo-hygro transmitter.

Waxing
Crescent

First
Quarter

Waxing
Gibbous

Full
Moon

Waning
Gibbous

Last
Quarter

Waning
Crescent

A bar segment indicates
the current moon phase

New
Moon

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868 MHz RECEPTION

The weather station should receive the outdoor data within 2 minutes after set-up. If the outdoor data is not
received 2 minutes after setting up (the outdoor temperature and humidity shows “ --.- ”), please check the
following points:

1. The distance of the weather station or transmitter should be at least 1.5 to 2 meters away from any
interfering sources such as computer monitors or TV sets.

2. Avoid positioning the weather station onto or i n the immediate proximity of metal window frames.

3. Using other electrical products such as headp hones or speakers operating on the same si gnal
frequency (868MHz) may prevent correct signal transmission and reception.

4. Neighbours using electrical devices operati ng on the 868MHz signal frequency can al so 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 false reset. Should this
happen accidentally then reset all units (see Setting up above) otherwise transmission problems may occur.
The transmission range is about 100 m from the 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).

POSITIONING THE WEATHER STATION:

The weather station provides the option of tabl e standing or wall mounting. Before wall
mounting, please check that the outdoor data ca n be received from the desired
locations.

To wall mount:

1. Fix a screw (not supplied) into the desired wall, leaving the head extended out by
about 5mm.

2. Place the weather station onto the screw, using the hanging hole on the backside.
Gently pull the weather station down to lock the screw into place.

Foldout table stand:

The foldout table stand leg is located on the backside. Pull the stand out.
Once the foldout table stand is extended, place the weather station in an
appropriate location.

30

POSITIONING THE THERMO-HYGRO TRANSMITTER:

CARE AND MAINTENANCE

•

Clean the instrument and the transmitter wi th a soft damp cloth. Do not use solvents or scouring
agents. Protect from moisture.

•

Remove the batteries if you do not use the prod uct for a lengthy period.

TROUBLESHOOTING

Problems Solutions

No indication on the
weather station or
transmitter
No transmitter reception
Display "---"

Incorrect display

Mounting at a sheltered place. Avoid direct rain and sunshine.
The thermo-hygro transmitter can be placed onto any flat surface or wall mounted usi ng the
bracket which doubles as a stand or wall mount base.

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 desi red locations
to check that the outdoor temperature and humidity readings are receivable. In event that t he
signal is not received, relocate the thermo-hygro transmitter or the weather station slightly as this
may help the signal reception.

•

Ensure batteries polarity are correct

•

Change batteries

•

Check batteries of external transmitter (do not use rechargeable
batteries!)

•

Restart the transmitter and weather station as per the manual

•

Choose another place for the transmitter and/or the weather station

•

Reduce the distance between the transmitter a nd the weather station

•

Check if there is any source of interference

•

Change batteries

WASTE DISPOSAL

This product has been manufactured using hig h-grade materials and components which can
be recycled and reused.

Never throw flat batteries and rechargeable batteries in household waste.
As a consumer, you are legally required to take them to your retail store or to appropriate

31

collection sites according to national or local regulations in order to protect the environment.
The symbols for the heavy metals contained are: Cd=cadmium, Hg=mercury, Pb=lead

This instrument is labelled in accordance wi th the EU Waste Electrical and Electronic
Equipment Directive (WEEE).
Please do not dispose of this product with other household waste. The user is obligated to
take end-of-life devices to a designated collection point for the disposal of electrical and

SPECIFICATIONS

Recommended operating temperature range : +5ºC to +40ºC

Temperature measuring range:

Indoor : -9.9ºC to +59.9ºC wi th 0.1ºC resolution
(“OF.L” displayed if outside this range)
Outdoor : -39.9ºC to +59.9ºC with 0.1ºC resolution
(“OF.L” displayed if outside this range, “--.-” displayed if no transmitter signal)

Relative humidity measuring range:

Indoor : 20% to 95% with 1% resolution (Display “- -” if temperature is OF.L; display “19%” “

Outdoor : 1% to 99% with 1% resolution (Display “- -” if outside temperature is OF.L; display

Data checking interval:

Indoor temperature/humidity checking interval : every 16 seconds
Outdoor temperature/humidity reception : every 4 seconds
Air pressure checking interval : every 1 minute
Power consumption (Alkaline batteries recommended):
Weather station : 2 x C, IEC, LR14, 1.5V
Battery life : Approx. 24 months
Thermo-hygro transmitter : 2 x AAA, IEC, LR3, 1.5V
Battery life : Approx. 12 months

Dimensions (L x W x H)

Weather station : 188 x 33.7 x 188 mm
Thermo-hygro transmitter : 36 x 16 x 102.6 mm

TFA Dostmann GmbH & Co. KG, Zum Ottersberg 12, D - 97877 Wertheim
No part of this manual may be reproduced wi thout written consent of TFA Dostmann. The technical data are
correct at the time of going to print and may change without prior notice.

DECLARATION OF CONFORMITY

Herewith we declare, that this wireless transmission device does comply with the essentials requirements of
R&TTE Directive 1999/5/EC.
A copy of the signed and dated Declaration of Co nformity is available on request via [e-mail].
www.tfa-dostmann.de

04/12

electronic equipment, in order to ensure enviro nmentally-compatible disposal.

if < 20% and “96%” if > 95%)

1% if < 1% and 99% if > 99%)

32