Alecto WS-1550 User manual

USER GUIDE
WS-1550
Weather station with wireless outdoor sensor
%
IN
%
OUT
YEAR
TIME
CH
:
433MHz

2
CH1 CH2 CH3
TX RESET
CH1 CH2 CH3
TX RESET
CH1 CH2 CH3
TX RESET CH1 CH2 CH3
TX RESET CH1 CH2 CH3
TX RESET
OVERVIEW
A
1
%
IN
%
OUT
DYEAR M
TIME DST
CH
:
AA 1,5V
AA 1,5V
AA 1,5V
MODE UP DOWNNEXT
C / F
ON/OFF
CLOCK LIGHT
CHANNEL RESET
AA 1,5V
AA 1,5V
AA 1,5V
MODE UP DOWN NEXT
C / F
ON/OFF
CLOCK LIGHT
CHANNEL RESET
AA 1,5V
AA 1,5V
AA 1,5V
MODE UP DOWNNEXT
C / F
ON/OFF
CLOCK LIGHT
CHANNEL RESET
AA 1,5V
AA 1,5V
AA 1,5V
MODE UP DOWN NEXT
C / F
ON/OFF
CLOCK LIGHT
CHANNEL RESET
AA 1,5V
AA 1,5V
AA 1,5V
MODE UP DOWNNEXT
C / F
ON/OFF
CLOCK LIGHT
CHANNEL RESET
AA 1,5V
AA 1,5V
AA 1,5V
MODE UP DOWN NEXT
C / F
ON/OFF
CLOCK LIGHT
CHANNEL RESET
B C
D
E
2
3
4
5
6
7
8
9
10 11 12 13
14 15 16 17 18
19
20
21
22
23
24 25
26
27
28
29
30
31
32
33
F
5

3
INSTALLATION
Indoor unit power supply:
Connect the supplied 4.5VDC power
adaptor (A) or insert the batteries according
to the instructions below:
1. Open the battery compartment of the
indoor unit by carefully pushing the
retaining clip at the rear downward (1).
2. Remove the battery cover and insert 3
batteries, type alkaline, size AA, 1.5V
(2), paying attention to the polarity.
Batteries are not included.
3. Click the battery cover back onto the
weather station.
As soon as the indoor unit starts up, the
weather icons start ashing in the display.
1. Press the UP and DOWN (11 and
12) buttons to select the icon for the
actual weather conditions. See also
‘WEATHER FORECAST’.
2. Press the “CLOCK” (16) button to
conrm your selection.
Now the reception icon for the outdoor units
starts ashing, while the receiver for the
outdoor units starts receiving.
Outdoor unit power supply (D):
1. Open the battery compartment by
sliding the cover at the front downward.
2. Insert 2 batteries, type AAA, 1.5 Volt, as
indicated inside the battery compartment
(D8). Batteries are not included.
3. Press the TX (7) button to register the
outdoor unit. Upon leaving the factory,
the outdoor unit is set to channel 1 (9).
4. Replace the battery cover onto the
outdoor unit.
Now press and hold the Channel button
(15) for 3 seconds to start the reception of
the DCF-77 clock signal; the icon (25)
starts ashing. The number of arcs shown in
the icon depends on how strong the signal
reception is.
The receiver operates for 10 minutes and
the unit then switches back to the reception
of the outdoor unit.
Attention:
Alkaline batteries will power the WS-
1550 approx. 4 months; that’s why it’s
recommended to power the WS-1550 using
the power adaptor and to insert the batteries
only as a backup.
Positioning tips:
• Never place the indoor unit in direct
sunlight and keep it away from heat
radiating objects (lights, heaters, etc.)
• For a strong reception of the radio
controlled time signals, never place the
indoor unit next to large metal surfaces
or devices with strong electromagnetic
elds.
• The outdoor unit is not waterproof. Al-
ways place this unit on a spot protected
against rain and wind.
• The distance between the indoor and
outdoor unit should be no more than
30 meters
Mounting:
In case of wall-mounting, the indoor and out-
door unit may be suspended from a single
screw (see B5 and C5).
DISPLAYS (see g. F)
General:
The actual indoor temperature with the hu-
midity, the actual outdoor temperature with
the humidity and the time are only displayed
correctly after both the indoor and outdoor
unit have been functional for several hours
and have not been moved. The weather
forecast will be displayed correctly after at
least 24 hours.

4
Screen display:
The weather forecast in the display is
represented by icons. The display can also
show 4 main functions, namely: Indoor and
outdoor temperature, indoor and outdoor
humidity, date and time. You may use the
“light on/off” (17) button of the WS-1550
to enable the background lighting and the
“MODE” (10) button to rst show the “date”
function and then the “year” function.
Upon receiving the DCF signal, the date will
appear.
(DCF) time:
When the symbol is illuminated in the
centre of the time (25), the clock is synchro-
nised with the radio controlled atomic time
signal sent by the ‘DCF77’ station. If this
symbol is not illuminated, the time is dis-
played by the internal clock of the WS-1550.
The DCF77 station is situated in Frankfurt,
Germany. The reception of the DCF77 time
is basically possible in the whole of Western
Europe.
Temperature with humidity:
At (19) the indoor temperature is displayed.
At (20) the indoor humidity is displayed in %.
At (33) the outdoor temperature is dis-
played. At (32) the outdoor humidity is
displayed in %
Press the C/F button (14) to switch the dis-
play between ºCelsius and ºFahrenheit.
Weather forecast:
At (22) the weather forecast is displayed,
represented by icons:
The WS-1550 calculates the weather for the
coming 12-24 hours based on the tempera-
ture and humidity. The weather development
is shown by the trend arrows (30).
After connecting the power adaptor or
inserting the batteries, the actual weather
condition must be set by selecting the
correct icon. Choose the cloud in case of
cloudy circumstances, the sun for sunny
weather, etc.
TO ADJUST THE WEATHER ICONS:
Press and hold the NEXT (13) button for
3 seconds until the display starts ashing.
Press the UP (11) or DOWN (12) button
to adjust the weather icons to the actual
weather conditions. Press the CLOCK (16)
button to save your setting. The weather
forecast is now set.
The weather forecast applies to an area
of approx. 30-50km around the WS-1550.
This weather forecast has an accuracy of
70-75%. Keep in mind a correct weather
forecast display is not guaranteed.
The WS-1550 uses the following weather
forecasts:
Sunny
Storm
Snow

5
Rain
Cloudy
Outdoor unit display:
Press CHANNEL (15) to switch the display
between the channels (CH1/2/3). Select the
channel on which the outdoor unit is set (9).
When selecting (28), the data displayed
per channel changes. This is only useful
when using multiple outdoor units.
Other:
Display lighting:
When the indoor unit is powered by the
power adaptor, the display lighting is en-
ables continuously. Press the On/Off (17)
button to enable or disable the background
lighting. When the indoor unit is powered
only by the batteries, the display lighting
only switches on by pressing the On/ Off
(17) button. To conserve battery power,
the display lighting turns off after approx.
5 seconds.
Battery alert:
When the battery indication ‘IN’ (21) illumi-
nates, the batteries of the indoor unit must
be replaced. When the battery indication
‘OUT’ (31) illuminates, the batteries in the
outdoor unit with the concerned number
must be replaced. Additionally, the LED on
the outdoor unit starts ashing when the
battery capacity is too low.
Reception of radio time signals:
The antenna symbol (25) shows that the
DC-77 receiver is enabled for reception.
Upon start-up, the receiver will be enabled
for 10 minutes. After that, the receiver
switches on for time synchronization each
day at 2am, 3am, 8am, 12pm, 2pm and
8pm.
You may also manually switch on the DC-77
receiver by pressing and holding the DOWN
(12) button for 3 seconds.
To register outdoor units:
Now press and hold the CHANNEL (15)
button for at least 3 seconds until the display
icon (29) starts ashing. Set the outdoor
unit to the desired channel (9) and then
press the TX (7) button behind the battery
cover. The measured value with the chan-
nel number appears in the display of the
indoor unit. Now press and hold the CHAN-
NEL (15) button for at least 3 seconds to
conrm the input. The outdoor unit is now
registered.
Display in °C or °F:
Briey press the C/F (14) button on the
indoor unit to display the temperature in
ºCelsius or in ºFahrenheit.

6
OTHER FUNCTIONS
To manually set the clock:
Only follow these instructions when the WS-
1550 doesn’t receive the DCF77 signal.
1. Press and hold the CLOCK (16) button
for at least 3 seconds until the year
display starts ashing.
2. Use the UP and DOWN (11 and 12) but-
tons to adjust the following settings one
after the other and conrm each setting
by briey pressing the CLOCK (16) but-
ton:
− year
− month
− day
− hours
− minutes
3. After pressing the CLOCK button for the
last time, the time and date are set.
To manually activate the DCF-77 receiver:
With the WS-1550 in standby mode, press
and hold the DOWN (12) button for 3 sec-
onds to activate the radio receiver again for
the reception of the atomic time. However,
the receiver of the WS-1550 automatically
checks whether the signal is being received.
The daily synchronization with the DCF-77
station occurs at 2am, 3am, 8am, 12pm,
2pm and 8pm.
Around 2am and 3am the reception sensitiv-
ity is the highest.
EXPANSION
You may connect up to 3 outdoor units to
the indoor unit. You can then read the tem-
perature and humidity at 3 different locations
on the indoor unit (e.g. in your greenhouse,
in animal accommodations, in different
bedrooms).
Additional outdoor units are available via the
service department of Alecto: www.alecto.nl.
To register additional outdoor units:
1. Insert 2 batteries into the new outdoor
unit according to section INSTALLA-
TION – Outdoor unit power supply.
2. Slide the channel switch at the rear of
the outdoor unit (9) to the desired posi-
tion CH 1, 2 or 3, provided the position
is not yet in use.
3. Now press and hold the CHANNEL (15)
button (indoor unit) for at least 3 sec-
onds until the display icon (29) starts
ashing.
4. For each outdoor unit, now press the TX
(7) button behind the battery cover. The
measured value with the channel num-
ber appears in the display of the indoor
unit.
5. Now press and hold the CHANNEL (15)
button to conrm the input. The outdoor
unit is now registered.
ATTENTION: Don’t use the same channel
twice; the outdoor units will interfere with
each other.

7
BATTERY REPLACEMENT
Indoor unit:
If you remove the batteries from the indoor
unit while the adaptor is disconnected, all
memories and settings will be erased. That’s
why it’s recommended to connect the adap-
tor (or keep it connected) before removing
the batteries from the indoor unit.
Outdoor unit:
After replacing the batteries in the outdoor
unit(s), the outdoor unit must again be regis-
tered on the indoor unit.
To do this, follow the instructions in the sec-
tion ‘To register additional outdoor units’.
SYSTEEM FAILURE
In case of a possible system failure, the
indoor and/or outdoor unit must be reset.
Press the RESET (6) button of the outdoor
unit. The indication LED on the front panel
will illuminate for 1 second to inform you.
The outdoor unit is now reset.
Use a paperclip to press the reset button of
the indoor unit. This button is located behind
the reset hole at the rear. RESET (18). The
display will switch off and the indoor unit is
restarted. All connection procedures must
now be repeated.
If this doesn’t solve the problem, please
contact the Alecto service department: www.
alecto.nl
ENVIRONMENT
At the end of its lifespan, this product should
not be discarded as normal domestic waste,
but is must be taken to a collection point for
the recycling of electric and electronic equip-
ment.
Don’t throw away exhausted batteries,
take them to your local depot for small
chemical waste.
SPECIFICATIONS
Indoor unit:
measuring range:
-9.9 °C to +70 °C (-14.18 °F to +157.9 °F)
-5°C - 0°C ± 2°C
0°C - 40°C ± 1°C
40°C - 50 ºC: ± 2 ºC
resolution: 0.1°C
measuring range air humidity:
25% ~ 95% rel. air humidity
resolution: 1%
power supply:
mains voltage, 230Volt
output 4,5 VDC, 200mA,
Batteries:
3x 1.5V battery, size AA alkaline
connection of outdoor units:
max. 3
clock:
DCF-77 Time signal, Quartz backup
Outdoor unit:
measuring range:
-35 °C to +70 °C (-31 °F to +157.9 °F)
-20 ºC - 0 ºC: ± 2 ºC
0 ºC - 40 ºC: ± 1 ºC
40 ºC - 60 ºC: ± 2 ºC
resolution: 0.1°C
measuring range air humidity:
25% ~ 95% rel. air humidity
resolution: 1%
power supply:
2x 1,5V battery, format AAA, alkaline
transmit frequency / range:
433MHz / up to 30 meter.
data transmission every 5 min.

Service
Help
Service Help
WWW.ALECTO.NL
SER[email protected]
Hesdo, Australiëlaan 1
5232 BB, ‘s-Hertogenbosch
The Netherlands
WWW.ALECTO.NL
[e-mail]
Hesdo, Australiëlaan 1, 5232 BB,
‘s-Hertogenbosch, The Netherlands
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