17
3. After inserting the batteries into the transmitter, the Weather station
will start receiving data from the transmitter.The outdoor
temperature data should then be displayed on the Weather station.
Ifthisdoes nothappen after 3 minutes, the batteries will need to be
removed from both units and resetfrom step 1.
4. The Weather station can takeup to 3 remote transmitters. If you
have purchased additional transmitters,follow step 2 for allextra
transmitters. However, ensure that you leave 10 seconds in
between the reception of the last transmitter and the set-up of the
following transmitter. The Weather Station will number the
transmitters in the order of set-up,i.e.the first transmitter will have
the temperature and humiditydisplayed with the number 1against it
and so on.
5. After all the transmitters are set up, there is a testing period, during
which the displayswitches quicklybetween all the received
transmitters at random, according towhich random transmission it
receives.The processwill stop automaticallyif no keysare pressed
for a fewminutes.
6. Once the remote data have been received and displayed on the
Weather station, the DCF-77 time code reception is automatically
started. This takes typicallybetween 3-5 minutes in good conditions.
This time period isan excellent opportunityto locate the
transmitter(s) in suitable location(s) outdoors. In order to ensure
sufficient 433MHz transmission however, this should under good
conditions be no more than 100 metersfrom where the Weather
station will be finallypositioned (see notes on “Positioning” and
“433MHz Reception”).
7. Ifafter 10 minutes, the DCF time has not been received, use the
SET keyto manuallyenter a time and date initially. The clock will
automaticallyattempt to receive the DCF time at each fullhour.
When this is successful,the received time will override the manually
set time.The date is also updated withthe received time.(Please
refer also to notes on “Radio controlled Time Reception” and
“Manual Time Setting”).
Note:
In the event of changing batteries of the units, ensure the batteries do not
spring free from the contacts.Always wait atleast 1 minuteafter removing
the batteries before reinserting,otherwise start up and transmission
problems mayoccur.
RESETTING
The Weather Station and the Temperature transmitter need tobe reset
when one of the following conditions occur:
•Unsuccessful 433MHz signal reception.
•Malfunction on the units.
•Batteries replacement.
For resetting, remove all batteries from the units. Wait at least for 1 minute
before powering up the Weather Station again. Proceed from step 1 in
“Setting Up”.
DCF RADIO CONTROLLED TIME
The time base for the radio controlled time is a Cesium Atomic Clock
operated bythe Physikalisch Technische Bundesanstalt Braunschweig
which hasa time deviation of less than one second in one million years.
The time is coded and transmitted from Mainflingen near Frankfurt via
frequencysignal DCF-77 (77.5 kHz) and has a transmitting range of
approximately1,500 km. Your radio-controlled Weather Station receives
this signaland converts it to showthe precise time in summer or
wintertime.