La Crosse Technology TX151 User manual
WIRELESS THERMOMETER
Instruction manual
1.Description of parts
-1-
Fig. 1: Receiver front side
A 3
A 4
A 6
A 7
A 8
A 9
A 10
A1:
A8:
Time/Alarm
RCC symbol
A2:
A9:
Date
Indoor low power index
A3:
A10:
Outdoor temperature
Alarm symbol
A4: Outdoor low power index
A5: MAX and MIN temperature
A6: Indoor humidity
A7: Indoor temperature
A 1
A 2
A 5
B1
B2
B3 B5
Fig. 2: Receiver backside
B6
B4
B1: Buttons
Hanging hole
B2:
B3:
5V micro usb input
B4:
RESET button
B5: B6:
Support Battery door
-2-
Fig. 3: Transmitter
-3-
Fig. 3
C1: Wall mounting hole
C2:LED index
C4:Switch 1-2-3 for channel
selection
C5:TX button
C 1
C 2
C 5
C 4
2. Before you start using it
• Please make sure to read the instruction manual carefully.
This information will help you to familiarise yourself with your new device, to learn all of its functions
and parts, to find out important details about its first use and how to operate it and to get advice in
the event of a malfunction.
• Following and respecting the instructions in your manual will prevent damage to your instrument and
loss of your statutory rights arising from defects due to incorrect use.
C 3
C3:Battery compartment
• We shall not be liable for any damage occurring as a result of non following of these instructions.
Likewise,we take no responsibility for any incorrect readings and for any consequences which may
result from them.
• Please take particular note of the safety advice!
• Please keep this instruction manual for future reference.
3.Scope of delivery
• Wireless weather station (Receiver)
• Micro USB wire
• Outdoor transmitter (CH1)
• Instruction manual
4.Specifications
• Measuring range indoors:Temperature -10°C~+50°C(14°F~122°F) Humidity 20%~95%.
• Measuring range outdoors: Temperature -40°C~+60°C(-40°F~140°F).
• Accuracy : Temperature +/-1°C(2°F) between 0°C to 50°C,otherwise +/-2°C(4°F).
Humidity +/-5% between 30% to 70%,otherwise +/-8%.
• Working temperature and humidity : -10°C~+50°C (14°F~122°F) and 20%~95%.
• Storage temperature and humidity : -10°C~+60°C (14°F~140°F) and 10%~95%.
• Power Consumption: Receiver 2 X 1,5V AAA or 5V/1A micro usb input.
Transmitter 2 X 1,5V AAA.
• RCC function: DCF and WWVB choice.
• Transmission distance: 60m in free field.
• Transmission frequency:433.92MHZ.
-4-
• This product is exclusively intended for the field of application described above. It should only be used
as described within these instructions.
5. For your safety
• Unauthorized repairs, modifications or changes to the product are prohibited.
• Time date display.
• Alarm function.
-5-
Caution!
Risk of injury:
• Keep these instruments and the batteries out of the reach of children.
• Batteries must not be thrown into a 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 leaking.
• Never use a combination of old and new batteries together, nor batteries of different types.
• Wear chemical-resistant protective gloves and safety glasses when handling leaking batteries.
!
Important information on product safety!
• Do not place your device near extreme temperatures, vibrations or shocks.
• Protect it from moisture.
• The outdoor transmitter is protected against splash water, but is not watertight. Choose a shady and
dry position for the outdoor transmitter.
!
• Place both instruments on a desk with a distance of approximately 1.5 meter. Avoid getting close to
possible interference sources (Electronic devices and radio installations).
• Remove the protective foil from the display of the receiver.
• Connect the basic station to the attached micro-usb wire,and put USB port into 5V/1A power part,like
computer,the charger of phone,etc. (This way the backlight will be light all time.)
6.1 Inserting the batteries in the receiver
6. Getting started
-6-
• Or remove the battery cover and insert two new batteries 1,5V AAA,polarity as illustrated,Close the
battery compartment again. (This way the backlight will be not light all the time, it need press button to
turn on the backlight,and the backlight will light few seconds then auto turn off.)
• The device will alert you with a beep and all LCD segments will be displayed for a short moment.
• The default:
DCF: TIME:2020-1-1, 6:00 AL: 6:00, OFF
Hour system: 24hr Temperature unit: °C
WWVB: TIME:2020-1-1, 12:00 AL: 12:00, OFF
Hour system: 12hr Temperature unit: °F
6.2 Inserting the batteries in the outdoor transmitter
• Open the battery compartment of the outdoor transmitter.
• The slide switch for channel selection is at position 1 (default).
• Insert two new batteries 1,5 V AAA, polarity as illustrated.
• Close the battery compartment again.
• The outdoor values of the outdoor transmitter will be transmitted to the receiver. The displays of the
outdoor values are flashing "--.-".
• On the display of the receiver appear the channel number.
• If receiver receive the signal, it will display the current temperature of transmitter in OUT position.
• If the reception of the outdoor values fails within three minutes, "- -"appears on the display. Check the
batteries of the transmitter and try it again. Check if there is any source of interference.
• You can also start the outdoor transmitter search manually later on (for example when the outdoor
transmitter is lost or the batteries are changed).
• Hold the button on the receiver for three seconds, "---" blinking on the display.
• Press the TX button in the battery compartment of the outdoor transmitter.
• The receiver receives the values from the outdoor transmitter.
6.2.1 Reception of the outdoor values
-7-
• After successful installation close the battery compartment of the outdoor transmitter carefully.
6.3 Reception of the RCC frequency signal
• After the reception of the outdoor values, the device will now scan the RCC frequency signal and
the RCC symbol will be flashing on the display.
• To avoid interference, the other buttons (except ) will no function during the reception
of the radio controlled clock.
• When the time code is received successfully after 2-12 minutes, the radio-controlled time and the
RCC symbol are displayed steadily in the display. The other buttons are activated permanently.
• You can start the initialization manually.
• Press and hold the button for 3 seconds. The RCC symbol will be flashing.
• Interrupt the reception by pressing the button again. The RCC symbol disappears.
just tower - RCC function ON
no reception
There are four different reception symbols:
flashing - reception is active stays - reception is very good
• If the clock cannot detect the RCC-signal (for example due to disturbances, transmitting distance,
etc.),the time can be set manually. The RCC symbol disappears and the clock will then work as a
normal quartz clock.(see: Manual settings).
• If do not need RCC ,it can turn off the function.(see:Manual settings).
no symbol - RCC function OFF
time is manually set
-8-
• The RCC reception always takes place hourly between 2:00 and 5:00 o'clock in the morning. If the
reception is not successfully received until 5:00 o'clock, the next receive operation is again at 2:00
o'clock in the morning.
The time base for the radio-controlled time is a caesium atomic clock operated by the Physikalisch
Technische Bundesanstalt Braunschweig.It 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 clock receives
this signal and converts it to show the precise time. Changeover from summer time or winter time is
automatic. In Daylight Saving Time "DST" is shown on the LCD. The quality of the reception depends
mainly on the geographic location. Normally there should be no reception problems within a 1,500 km
radius around Frankfurt.
6.3.1 Note for radio-controlled time DCF
Please take note of the following:
• The recommended distance to any interfering sources like computer monitors or TV sets at least
1.5-2 meters.
• Inside ferro-concrete rooms (basements,superstructures),the received signal is naturally weakened.
In extreme cases, please place the unit close to a window to improve the reception.
• During night-time, the atmospheric interference is usually less severe and reception is possible in
most cases.A single daily reception is adequate to keep the accuracy deviation under 1 second.
• During the operation, all successful settings will be confirmed by a brief beep tone.
• The device will automatically quit the setting mode if no button is pressed for a long period of time.
• Press and hold the or button in the setting mode for fast running.
7.1 Manual settings
7. Operation
SET
AL SET
• Hold the button in normal mode for three seconds, to enter the setting mode.
• The setting sequence is shown as follows: Time Zone - DST on/off - 12 or 24 hours system
- Hour - Minute - Year - Month - Day - Language of week.
-9-
• Press the or button to increase or decrease for setting.
• Press and hold the or button for fast running.
• Confirm the setting with the button or no button pressed in 15 seconds.
• The manually set time will be overwritten by the RCC time when the signal is received successfully.
SET
AL SET
7.1.1 Setting of the time zone
• In the setting mode you can make the time zone.
• The time zone correction is needed for countries where the RCC signal can be received.
7.1.2 Setting of the 12 and 24 hours display
• In the setting mode you can choose between the 12 - and 24 hour system.
• In the 12 HR system AM or PM (after 12 o'clock) appears on the display.
7.2 Setting of the alarm time
.
• Press the button into ALARM mode, “ALARM” words displayed.
• Hold the button for 3 seconds to set alarm time.
• The setting sequence is shown as follows: Hour - Minute.
• Press the or button to increase or decrease for setting.
• Press and hold the or button for fast running.
• Confirm the setting with the button or no button pressed in 15 seconds.
• Press button to turn on or off alarm function.
• When the bell icon is displayed, it means that alarm function is turn on.
SET
AL SET
SET
AL SET
SET
AL SET
-10-
7.3 Backlight
•Attention: Backlight in continuous operation only works with USB power connected.
• Press any button to turn on backlight for 8 seconds when use battery.
8. Micro-USB input
• 5V/1A power can input from Micro-USB part on the left side.
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