Temperature transmitter
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1. Functions
• Additional temperature transmitter for wireless
weather stations (e.g. 35.1093)
• For the wireless transmission of outdoor temperature
and DCF time (433 MHz), transmission range up to
30 m (free field)
• Also for temperature control of remote rooms, f. e.
children’ s room, wine-cellar
2. Elements Fig. 1
D1: Transmission indication LED
D2: Wall mount hole
D3: Battery compartment holders
D4: “CH” button
3. Getting started
• Place the display unit and the transmitter on a desk
with a distance of approximately 1.5 meter. Check
that no other electronic devices are close.
• Take the display unit into operation according to the
manual of the display unit.
• Open the battery compartment of the transmitter by
pushing inwards the two latches at the bottom and
insert 2 x AA 1.5 V batteries, observing the correct
polarity.
• The LED indicator of the transmitter is blinking and
the transmitter is set to channel 1 by default.
• After the sensor is powered up, it will first transmit
the temperature and then the sensor will start radio
controlled time reception. During the DCF time recep-
tion period (maximum 10 minutes), no weather data
will be transmitted.
• After the reception of the radio controlled time the
DCF signal appears permanently on the display of the
weather station.
• Note: DO NOT PRESS ANY KEY during the first
10 minutes learning period or before radio controlled
time is displayed on the receiver. After both outdoor
values and radio controlled time are displayed you can
place your remote sensor outdoors at the final destina-
tion. In case the clock cannot detect the DCF-signal (for
example due to disturbances, transmitting distance,
etc.), the time can be set manually. If the outdoor weat-
her data is not displayed or if any key is pressed before
the weather station receives the signal, or when chang-
ing transmitter batteries you will need to follow the
battery installation procedure again. Please wait mini-
mum 10 seconds before reinserting the batteries!
Note for Radio Controlled Time DCF:
The time base for the radio controlled time is a Caesium
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 trans-
mitting range of approximately 1,500 km. Your radio-
controlled clock receives this signal and converts it to
show the precise time in summer or wintertime.
The quality of the reception depends greatly on the geo-
graphic location. In normal cases, there should be no
reception problems within a 1,500 km radius around
Frankfurt.
Please take note of the following:
• The radio controlled time receiver is built inside the
thermo-sensor. It is recommended to keep distance to
any interfering sources and ferro-concrete buildings.
• During night-time, 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.
4. Positioning of the transmitter
• Choose a shady and dry position for the transmitter.
(Direct sunshine falsifies the measurement and con-
tinuous humidity strains the electronic components
needlessly)
• Check the transmission of 433 MHz signal from the
transmitter to the display unit (transmission range
30 m free field). Within ferro-concrete rooms (base-
ments, superstructures), the received signal is naturally
weakened.
• If necessary choose another position for transmitter
and/or display unit.
5. Additional transmitters
• The sensor will automatically transmit temperature to
the display unit on channel 1 after batteries are in-
serted.
• For having more than one external transmitter, select a
different channel (1 to 3) for every transmitter by
pressing the “CH” button on the transmitter while the
transmission indication LED is flashing. Press twice for
channel 2 and three times for channel 3 right after the
starting up of the transmitter. The LED is flashing once
for channel 1, twice for channel 2 and three times for
channel 3 (channel 4 and 5 are not usable for model
35.1093).
• Press and hold the “CH” button on the display unit for
2 sec. to start initialization manually. The channel num-
ber on the LCD of the display unit flashes and the new
transmitter will be received automatically (model
35.1093).
6. Battery replacement Fig. 2
• Use alkaline batteries only. Observe correct polarity.
Low batteries should be changed soon to avoid the
damage resulting from a leaking battery. Batteries
contain harmful acids. Wear protective glasses and
gloves when handling with leaked batteries.
• Attention:
Please do not dispose of old electronic devices and
used batteries in household waste. To protect the
environment, take them to your retail store or to
appropriate collection sites according to national or
local regulations.
7. Specifications
Measuring range
outdoor temperature: -20°C…+60°C
Operating temperature: -10°C…+50°C
Resolution: 0.1°C
Transmission frequency: 433 MHz
Transmission range: max. 30 m
Batteries: 2x 1.5V AA (included)
8. Maintenance
• Do not expose the instrument to extreme tempera-
tures, vibration or shock.
• Clean it with a soft, damp cloth. Do not use solvents or
scouring agents.
• Avoid placing the instrument near interference sources/
metal frames such as computer or TV sets.
• Please reset the unit and follow the battery installa-
tion procedure if the unit does not work properly.
Change the batteries.
9. Intended usage, exclusion of warranty, safety informa-
tion
• The product is not a toy. Keep it out of reach of child-
ren.
• The product is not to be used for medical purpose or
for public information, but is determined for home
use only.
• The specifications of this product may change without
prior notice.
• No part of this manual may be reproduced without
written consent of TFA Dostmann.
• Improper use or unauthorized opening of housing will
mean the loss of warranty.
EU DECLARATION OF CONFORMITY
Herewith we declare, that this wireless transmission
device does comply with the essential 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.
TFA Dostmann GmbH & Co.KG, D-97877 Wertheim
www.tfa-dostmann.de
Kat. Nr. 30.3167
Bedienungsanleitung
Operating Instructions
Fig. 2
Fig. 1
D1
D3D3
D2
D4
Temperature transmitter
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Temperature transmitter
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TFA Anl_No. 30.3167 23.10.2008 9:52 Uhr Seite 2
