TFA HY40.1 User manual

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MIN/MAX/+ key
WIRELESS 433MHz TEMPERATURE STATION
Instruction Manual
INTRODUCTION:
Congratulations on purchasing this tiny 433MHz Temperature Station which displays the
time with second and up to three outdoor temperature readings. With only two easy to use
keys, this innovative product isidealfor usein the home or office.
The Temperature Station
Set/ CH key
Stand
Hanging Hole

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The Outdoor Temperature Transmitter
FEATURES:
The Temperature Station
•LCD clock in24 hour time display (hour,minutes, seconds)
•DCF-77 Radio Controlled timewith manualsettings
•Date and month calendar display
•Indoor and outdoor temperature reading in degree Celsius (°C)
Holder

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•Can receive up to three outdoor transmitters
•Indoor and outdoor temperature with Minimum and Maximumrecords and time
received
•Table standing or wallmountable(hidden table stand)
The Outdoor Temperature Transmitter
•Remote transmission of outdoor temperature to Temperature Station by 433 MHz
signal
•Wall mounting case
SETTING UP:
1. First, inert the batteries into the Temperature Station (see “How to install and
replace batteries in the Temperature Station” below). Once the batteries are in
place, allthe segments will light up momentarily. If the indoor temperature reading is
not displayed after 30 seconds, remove the batteries and wait for at least 10 seconds
before reinserting them.

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2. Within 3 minutes of activating the Temperature Station, place the batteries into the
outdoor transmitter (see “How to install and replace batteries in the outdoor
transmitter” below).
3. After a fewseconds of inserting the batteries into the transmitter, the Temperature
Station willstart receiving data fromthe transmitter(s). The remote temperature will
then be displayed on the Temperature Station. If this doeshappen after 15 minutes,
the batteries will need to be removed fromboth units and reset fromstep 1.
4. The Temperature Station can take up to 3 remote transmitters. If you have purchased
additionaltransmitter, followstep 2 for extra 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 Temperature Station willnumber the transmitters in the
order of set-up, i.e. the firsttransmitter willhave the temperature displayed with the
number 1 against it and so on.
5. When all the transmitters are set up, there is a testing period, during which the display
switches quickly between allthe received transmitters at random, according to which
randomtransmission it receives. Pressing anykey willstop this process. The process
also stops automaticallyifno keys are pressed for a fewminutes.

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6. Once the remote temperature has been received and is displayed on the Temperature
Station,the DCF-77 time code reception is automatically started. This takes typically
between 3-5 minutes in good conditions. Thistime period is an excellent opportunity
to locate the transmitter(s) in suitablelocation(s) outdoors. In order to ensure the
sufficient 433 MHz transmission however, thisshould under good conditions be no
more than 25 meters fromwhere the Temperature Station willfinally be positioned.
7. If after 10 minutes the DCF time has not been received, use the SET/ CH keyto
manually enter a time initially. The clock willautomatically attempt to receive the DCF
time at each fullhour. When thisis successful, the received timewilloverride the
manually set time. The data is also updated with the received time (Please refer also
to “DCF-77 Radio controlled time” and “Manual time setting”)

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HOW TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE
STATION
1. Flip open the battery cover at the backof the
Temperature Station.
2. Checking the correctpolarization, insert 2 xAA, IEC
LR6, 1.5V batteries into the battery compartment
3. Replace the cover

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HOW TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE
TRANSMITTER
1. Remove the battery cover at the front side with asmall
screwdriver.
2. Insert the batteries, observing the correct polarity (see
battery compartment marking).
3. Replace the battery cover on the unit.
Note:
In the event of changing batteries in any of the units, allunits need to be reset by launching
the setting up procedures. Thisisbecause a randomsecurity code is assigned by the
transmitter at start-up and this code must be received and stored by the Temperature Station
in the first minutes of power being supplied toit.

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BATTERY CHANGE:
It isrecommended to replace the batteries inallunitson an annualbasis to ensure optimum
accuracy of these units.
Please help in the preservation of the environment. Return used batteries to
an authorized depot.
FUNCTIONKEYS:
Temperature Station:
There are two easy-to-use function keys in the Temperature Station
SET/CH key(Setting/Channel)
•Press and hold for about 3 seconds to enter the Manual setting mode.

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•Used to toggle between the current outdoor transmitters 1, 2 and 3 (ifmore than 1
transmitter is used)
MIN/MAX/+ key(Min/ Max temperature)
•Used to toggle between the minimumand maximumrecorded readings of indoor/
outdoor temperature and the time of record.

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LCD SCREEN
Transmitter
identification number
Date and Month
Time
Outdoor transmission
signal
Indoor temperature
Outdoor temperature
DCF Tower Icon (for
time reception)

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DCF-77 RADIOCONTROLLED TIME
The time base for the radio controlled time is a CesiumAtomic Clock operated by the
Physikalisch Technische BundesanstaltBraunschweig which has a time deviation of less
than one second in one million years.The time is coded and transmitted fromMainflingen
near Frankfurt via frequency signalDCF-77 (77.5 kHz) and has a transmitting range of
approximately 1,500 km. Your radio-controlled Temperature Station receives thissignaland
converts it to showthe precise time in summer or wintertime.
The qualityof the reception depends greatly on the geographiclocation. In normalcases,
there should be no reception problems withina 1500kmradius of Frankfurt.
Once the outdoor temperature is displayed on the Temperature Station, the DCF tower icon
in the clock display willstart flashing in the upper left corner. Thisindicates that the clockhas
detected that there is a radio signalpresent and istrying to receiveit. When the time code is
received, the DCF tower becomes permanently lit and the time willbe displayed.
If the tower icon flashes, butdoes not set the time or the DCF tower does not appear at all,
then please take note of the following:

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•Recommended distance to any interfering sources like computer monitors or TV sets
is a minimumof 1.5 - 2 metres.
•Within ferro-concrete rooms (basements, superstructures),the received signalis
naturally weakened. In extreme cases, please place the unit close to a windowand/ or
point its front or back towards the Frankfurt transmitter.
•During nighttime, the atmosphericdisturbances are usuallylesssevere and reception
is possible in most cases. A singledaily reception isadequate to keep the accuracy
deviation below1 second.
SETTING MODE
MANUAL TIME SETTING
In area where reception of the DCF-77 time is not possible, the time can be manually set.
The clock willthen be a normalQuartz clock. Once the DCF signalis detected, it willchange
the manuallyset time into the received time. Please proceed the following setting steps at
the first time before using the Temperature Station.

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1. Press and hold the “SET/CH” key for about3 seconds to enter the Manualtime
setting mode. The Minute digitinthe time section starts flashing.
2. Use the MIN/MAX/+ key to set the Minute.
3. Press the SET/CH key to enter the hour. The hour digit start flashing.
4. Use the MIN/MAX/+ key to set the Hour.
5. Press again the SET/CH key to confirmand enter the Time zone setting mode.
TIME ZONE SETTING
The time zone can be set between ± 9 hours (default 0 hour)
1. Press the SET/CH key to enter the time zone setting. The time zone starts flashing.
2. Use the MIN/MAX/+ key to change the time zone
Minutes (flashing)
Hours (flashing)

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3. Press the “SET/CH key to confirmand enter the Calendar setting mode.
CALENDARSETTING
The date default of the Temperature station is1. 1. in the year 2003.Once the radio-
controlled time signalsare received, the date is automaticallyupdated. However, if the
signalsare not received, the date can also be set manually:
Time zone (flashing)

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1. Press the SET/CH key to enter the Year (the Year digit will be flashing). Use the
MIN/MAX/+ key to set the year.
2. Press the SET/CH key to enter the Month (the Month digit willbe flashing). Use
MIN/MAX/+ key to adjust the month
3. Then press the SET/CH key to enter the Day. Use MIN/MAX/+ key to adjust the day.
Month (flashing)Day (flashing)
Year (flashing)

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Indoor
temperature
4. Press the SET/CH key to confirmand exit the Calendar setting mode.
CHECKING THE MIN/MAX TEMPERATURE
INDOORMIN/ MAX TEMPERATURE
1. Press the MIN/MAX/+ key once to display the indoor minimumdisplay and the time of
record.
2. Press the MIN/MAX/+ key a second time to showthe indoor maximum display and the
time of record.
Maxicon
MIN icon

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OUTDOOR MIN/ MAXTEMPERATURE
The outdoor LCD showthe outdoor temperature, the reception indicator, the minimumor
maximum reading. A number above the temperature willalso be shown if more than one
transmitter has been used
Number showing Transmitter unit (onlydisplayed
if there is more than one transmitter)
MAX icon
MIN icon
Outdoor
temperature
Outdoor data
reception
indicator

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1. Press the SET/CH key to select the transmitter (only availableif more than one
transmitter is used).
2. Press the MIN/MAX/+ key three time to showthe outdoor minimumtemperature
display and the time of record.
3. Press the MIN/MAX/+ key again to showthe outdoor transmitter temperature display
and the time of record
4. Press the MIN/MAX/+ to return to current outdoor temperature display.
RESETTINGTHE MIN/ MAXTEMPERATURE
RESETTINGTHE INDOOR MIN/ MAXTEMPERATURE
1. Press the MIN/MAX/+ key once to enter the indoor temperature display.
2. Press and hold the SET/CH key for about 3 seconds. This willreset both the minimum
and maximumindoor temperature data to the current time, date and indoor
temperature.

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RESETTINGTHE OUTDOOR MIN/MAXTEMPERATURE
1. Press the SET/CH key to select the particular transmitter to be reset (if more than one
transmitter is used)
2. Press the MIN/MAX/+ key three times to enter the outdoor temperature display
3. Press and hold the SET/CH key for about 3 seconds. This willreset both the minimum
and maximumoutdoor temperature data to the current time, date and outdoor
temperature.
OUTDOOR TRANSMITTER
The outdoor temperature is measured and transmitted every 60 seconds.
The range ofthe Temperature transmitter may be affected by the temperature. At cold
temperatures the transmitting distance may be decreased. Please bear thisin mind when
placing the transmitter.

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433 MHz RECEPTION:
The Temperature Station willreceive the temperature data within 15 minutes. If the
temperature data is not being received 15 minutes after setting up (the display shows “---”),
then please check the following points:
1. The distance of the Temperature Station or transmitter should be at least 1.5 to 2
meters away fromany interfering sources such as computer monitors or TV sets.
2. Avoid placing the receiver onto or in the immediate proximity of metalwindowframes.