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19
WIRELESS 868 MHz WEATHER STATION
Instruction Manual
Cat. No. 35.1089.IT
Thank you for choosing this wireless weather station 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 event 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.
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
Batteries (5 x AA, IEC LR6, 1.5V)
Instruction manual
FIELD OF OPERATION AND ALL OF THE BENEFITS OF YOUR NEW
WEATHER STATION AT A GLANCE:
DCF-77 Radio controlled time function with manual time setting options
DCF time reception ON/OFF
24 hour display
Alarm function with snooze
Time zone +/- 12 hours
Temperature display in degree Celsius (°C)
Indoor and outdor temperature with MIN/MAX records
Manual reset of MIN/MAX records
3 weather forecast with weather tendency indicator
Wireless transmission at 868 MHz
20
Signal reception intervals at 4 seconds
Low battery indicator
Wall mounting or table standing (foldout stand)
FOR YOUR SAFETY:
The product is exclusively intended for the field of application described
above. The product 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:
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. Risk of explosion!
Batteries contain harmful acids. Low batteries should be changed as
soon as possible to prevent 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.
! Important information on product safety!
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.
21
LCD
Display
ELEMENTS
The Weather station
The Outdoor Temperature Transmitter
Remote transmission of outdoor temperature
to weather station by 868 MHz signals
Shower proof casing
Wall mounting and table-standing
HOW TO INSTALL AND REPLACE BATTERIES IN THE
TEMPERATURE TRANSMITTER
The temperature transmitter uses 2 x AA, IEC LR6, 1.5V
battery. To install and replace the batteries, please follow
the steps below:
1. Remove the battery compartment cover at the back
of the transmitter.
Function keys
Foldout stand
Battery
compartment
cover
Hanging hole
22
2. Insert the batteries, observing the correct polarity (see marking).
3. Replace the battery compartment cover on the unit.
HOW TO INSTALL AND REPLACE BATTERIES IN THE WEATHER
STATION
The weather station uses 3 x AA, IEC LR6, 1.5V batteries. When batteries will
need to be replaced, the low battery
icon will appear on the LCD. To install
and replace the batteries, please
follow the steps below:
1. Lift up the battery compartment
cover.
2. Insert batteries observing the
correct polarity (see marking).
3.
Replace compartment cover.
Battery replacement
Replace the batteries when the battery symbol of the weather station
appears above the indoor temperature.
When the batteries of the transmitter are used up, the low battery icon
appears above the outdoor temperature display.
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 in the first 3 minutes of power being supplied to
it.
23
SETTING UP:
Note: This weather station receives only one outdoor transmitter.
1. First, insert the batteries into the Temperature transmitter. (seeInstall
and replace batteries in the temperature transmitter“).
2. Immediately after and within 30 seconds, insert the batteries into
Weather station (see “Install and replace batteries in the weather
station”). Once the batteries are in place, all segments of the LCD will
light up briefly. Following the time as 0:00 and the weather icon will be
displayed. If these are not displayed after 60 seconds, remove the
batteries and wait for at least 30 seconds before reinserting them.
3. After inserting the batteries, the Weather station will start receiving data
from the transmitter. The outdoor temperature and the signal reception
icon should then be displayed on the Weather station. If this does not
happen after 3 minutes, the batteries will need to be removed from both
units and reset from step 1.
4. In order to ensure sufficient 868 MHz transmission however, this should
under good conditions be a distance no more than 100 meters between
the final position of the weather station and the transmitter (see notes on
Mounting” and “868 MHz Reception”).
5. Once the remote temperature has been received and displayed on the
weather station, the DCF time (radio controlled time) code reception is
automatically started. This takes typically between 3-5 minutes in good
conditions.
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.
24
SET key
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 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 four easy to use function keys.
SET key
Press the key to enter manual setting modes: Time zone, Time
reception ON/OFF and Manual time
MIN/MAX
RESET key
ALARM key
+ key
25
Outdoor Reception
Signal icon*
MIN/MAX indoor
temperature
MIN/MAX outdoor
temperature
Stop the alarm
+ key
To make adjustment for various settings
Stop the alarm
ALARM key
Enter the alarm setting mode
Switch the alarm ON/ OFF
Stop the alarm
MIN/MAX RESET key
Press and hold to reset the MIN/MAX temperature records
Activate the snooze
Exit manual setting modes
LCD SCREEN AND SETTINGS:
* When the outdoor signal is successfully received by the Weather Station,
this icon will be switched on. (If not successful, the icon will not be shown in
LCD) So user can easily see whether the last reception was successful (icon
on) or not (icon off).
Time
Indoor
Temperature in °C
Outdoor
Temperature in °C
Weather tendency
indicator
Weather forecast icon
Low battery indicator
(weather
station)
Low battery indicator
(transmitter)
Radio controlled time
reception icon
Alarm icon
26
MANUAL SETTINGS:
The following manual settings can be done in the setting mode:
Time zone
Time reception DCF ON/OFF
Manual time
Press and hold the SET key for about 3 seconds to advance to the setting
mode:
TIME ZONE SETTING:
The time zone default is "0" hour. To set a different time zone:
1. The current time zone value starts flashing.
2. Use the + key to set the time zone. The range runs from 0, -1, -2…
-12, 12, 11, 10… 2, 1, 0, in consecutive 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 radio-controlled time (DCF time) is not possible,
the time reception function can be turned OFF. The clock will then work as a
normal Quartz clock. (Default setting is ON).
1. The digit “ON” digit will start flashing on the LCD.
2. Use the + key to turn OFF the time reception function if necessary.
3. Confirm with the SET key and enter the Manual time setting.
Note:
If the Time Reception function is turned OFF manually, the clock will not
attempt any reception of the radio-controlled time (DCF time) as long as the
Time zone (flashing)
flashing
27
Minutes (flashing)
Hours (flashing)
Alarm icon (ON)
Alarm time
Time Reception OFF function is activated. The Time Reception icon and the
DCF icon will not be displayed on the LCD.
MANUAL TIME SETTING
In case the weather station is not able to detect the radio-controlled time (DCF
time) signal (disturbances, transmitting distance, etc.), the time can be
manually set. The clock will then work as a normal Quartz clock.
To set the clock:
1. The hour digits start flashing in the time display section.
2. Use the + key to adjust the hours and then press SET key to go to the
minute setting.
3. The minute will be flashing. Press the + key to just the minutes.
4.
Confirm with the SET key and exit the setting mode.
Note :
The unit will still try to receive the signal despite a manual setting. When the
signal is received, the manually set time will automatically be replaced by the
received time. During reception attempts, the DCF tower icon will flash. If
reception has been unsuccessful, the DCF tower icon will not appear but
reception will still be attempted.
ALARM SETTING
To set alarm:
1. Press and hold ALARM for about 3 seconds until the alarm time display
flashes.
2. The hour digit and the alarm icon will be flashing. Press the + key to
adjust the hour.
28
3. Press ALARM button once and minute digit will be flashing. User shall
then press + button to set the minute.
4. Press ALARM button once to confirm the setting.
5.
To activate/ deactivate the alarm function, press the ALARM button
once. The display of the alarm icon represents that the alarm is "ON".
Note: The duration of alarm sounding is 85 seconds
TO ACTIVATE THE SNOOZE FUNCTION AND STOPPING THE
ALARM:
1. When the alarm is sounding, press the MIN/MAX RESET key to activate
the snooze function. The alarm will stop and re-activate after the snooze
interval of 10 minutes.
2.
To stop the alarm completely, press any keys other than the MIN/MAX
RESET key.
WEATHER FORECAST AND TENDENCY
THE WEATHER FORECASTING ICONS :
There are 3 weather icons in the second section of LCD which 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 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.
Rainy
Cloudy with
sunny intervals
Sunny
29
The icons display weather forecasts 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. 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), remove the batteries and re-insert them after about 30
seconds. 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. Again, disregard weather forecasts for the next 12 to 24
hours as this will allow time for operation at a constant altitude.
THE WEATHER TENDENCY INDICATOR
Working together with the weather icons are the weather tendency indicators
(located on the left and right hand side of the weather icons). When the
indicator points upwards, it means that the air-pressure 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, you will see how the weather has changed and how it
is expected to change. For example, if the indicator is pointing downwards
30
Outdoor reception
signal icon
together with cloud and sun icons, then the last noticeable change in the
weather was when it was sunny (sun icon only). Therefore, the next change in
the weather will be the cloud with rain icons since the indicator is pointing
downwards.
Note:
Once the weather tendency indicator has registered a change in the air
pressure, it will remain permanently visualized on the LCD.
INDOOR TEMPERATURE AND MIN/MAX RECORDS
The indoor temperature and indoor MIN/MAX records are displayed on the last
section of the LCD.
Note: The MIN/MAX indoor temperature range is -9ºC to + 38ºC with 1°C
resolution.
OUTDOOR TEMPERATURE AND MIN/MAX RECORDS
The outdoor temperature and outdoor MIN/MAX records are displayed on the
last section of the LCD.
Note: The MIN/MAX outdoor temperature resolution is range -40ºC to + 60ºC
with 1°C resolution.
Indoor
Temperature
MIN record
Indoor
icon
MAX record
Outdoor
Temperature
MIN record
Outdoor icon
MAX record
31
RESETTING THE INDOOR AND OUTDDOR MIN/MAX RECORDS
Note: All the MIN/MAX records will be reset at the same time.
1. In normal display mode, press and hold the MIN/MAX RESET key for 3
seconds. This will reset the indoor and outdoor MIN/MAX temperatures.
868 MHz RECEPTION CHECK
The weather station should receive the temperature data within 3 minutes after
set-up. If the temperature data is not received 3 minutes after setting up (not
successfully continuously, the outdoor display 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 in the immediate proximity
of metal window frames.
3. Using other electrical products such as headphones or speakers
operating on the same signal frequency (868MHz) may prevent correct
signal transmission and reception.
4. Neighbours 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 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 may be hung onto wall easily or free standing.
Choose a sheltered place. Avoid direct rain and sunshine.
32
Before wall mounting, please check that the outdoor temperature values can
be received from the desired locations.
Wall mounting
1. Fix a screw (not supplied) into the desired wall,
leaving the head extended out by about 5mm.
2. Remove the stand from the Weather Station by
pulling it away from the base and hang the station
onto the screw. Remember to ensure that it locks
into place before releasing.
Free standing
With the foldout stand, the weather station can be
placed onto any flat surface.
POSITIONING THE TEMPERATURE TRANSMITTER:
The Transmitter is supplied with a holder that may be
attached to a wall with the two screws supplied. The
Transmitter can also be position on a flat surface by
securing the stand to the bottom to the Transmitter.
33
To wall mount:
1. Secure the bracket onto a desired wall using the
screws and plastic anchors.
2. Clip the remote temperature sensor onto the
bracket.
Note:
Before permanently fixing the transmitter wall base,
place all units in the desired locations to check that the
outdoor temperature reading is receivable. In event that
the signal is not received, relocate the transmitters or
move them slightly as this may help the signal reception.
CARE AND MAINTENANCE
Clean the instrument and the transmitter with a soft damp cloth. Do not
use solvents or scouring agents. Protect from moisture.
Remove the batteries if you do not use the product for a lengthy period.
MALFUNCTION
Problems Troubleshooting
No indication on the
weather station
Ensure batteries polarity are correct
Change batteries
No transmitter reception
Display "---"
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 and the weather station
Check if there is any source of
interference
No DCF reception
Time reception setting “ON”
Choose another place for the weather
station
34
Manual time setting
Wait for attempted reception during the
night
Incorrect display
Change batteries
WASTE DISPOSAL
This product has been manufactured using high-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 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 with 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
electronic equipment, in order to ensure environmentally-
compatible disposal.
SPECIFICATIONS:
Recommended operating temperature range : 0ºC to 50ºC
Temperature measuring range:
Indoor : -9.9ºC to +37.8ºC with 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)
Indoor temperature checking interval : every 16 seconds
Outdoor data reception : every 4 seconds
Power consumption:
Weather station : 3 x AA, IEC, LR6, 1.5V
35
Temperature transmitter : 2 x AA, IEC, LR6, 1.5V
Battery life cycle (Alkaline batteries recommended) : appr. 24 months
Dimensions (L x W x H) :
Weather station : 118.4 x 28 x 137.4mm
Temperature transmitter : 38.2 x 21.2 x 128.3 mm
TFA Dostmann GmbH & Co. KG, Zum Ottersberg 12, D - 97877 Wertheim
No part of this manual may be reproduced without 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 Conformity is available on
request via info@tfa-dostmann.de.
www.tfa-dostmann.de
11/11
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TFA-35.1089.IT---Spectro-Funk
  • Ik zou graag een weerstation "TFA" willen aanschaffen met binnen- en buitentemperatuur van 20 meter afstand met aanduiding van min. en max. Wat raad u mij aan. Gesteld op 31-1-2021 om 22:17

    Reageer op deze vraag Misbruik melden
  • Het weerstation aanvaardt de toegezonden code door de buitenpost niet; de temperatuurzender tracht verbinding te krijgen , merkbaar aan de korte verschijning van de pictogram in de rechterbovenhoek van het vak "buitentemperatuur". Het vak "buitentemperatuur" toont geen gegevens (alleen streepjes).
    Bijkomende vraag: Wat is de functie van de zeer kleine opening aan de onderkant van de achterzijde? Gesteld op 19-9-2020 om 19:13

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