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Table of Contents
Related Manuals for La Crosse Technology WT-5120
Summary of Contents for La Crosse Technology WT-5120
- Page 1 868 MHz RADIO CONTROLLED PROJECTION ALARM CLOCK Instructions manual INTRODUCTION: Congratulations on purchasing this innovative 868MHz projection alarm clock which displays indoor and outdoor temperature. To enjoy the full benefits of this innovative product, please read this operating manual.
- Page 2 PROJECTION ALARM CLOCK Battery Display compartment Function keys Stand Adapter socket FEATURES DCF-77 Radio controlled time with manual setting option • 12/24 hours time display (hour, minutes, seconds) • Projection of time (hour and minute) and outdoor temperature • Projection with adjustable brightness and projection orientation possible •...
- Page 3 Alarm setting with snooze function • Time zone setting ±12hours • Temperature display in ºC/ ºF • Indoor and outdoor temperature display • E.L. back-light • Wireless transmission at 868 MHz • Signal reception intervals at 4 seconds • Low battery indicator •...
- Page 4 TO INSTALL AND REPLACE BATTERIES INTO THE PROJECTION CLOCK The Projection clock uses 2 x AA, IEC LR6, 1.5V batteries. To install and replace the batteries, please follow the steps below: Insert finger or other solid object in the space at the bottom center of the battery compartment and lift up to remove the cover.
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Page 5: Power Supplied By Batteries And Ac/Dc Adapter
The Projection clock will now start receiving the DCF time signal. After approximately 3 to 5 minutes, the DCF time will be displayed (Also see "Setting up" below). Important! Use only the adapter provided with the projection clock and make sure that your household voltage is appropriate to the working voltage of the transformer. - Page 6 clock will switch to AC/DC power. The batteries will then act as a backup power source in case of power failure. TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE TRANSMITTER The temperature transmitter uses 2 x AA, IEC, LR6, 1.5V batteries. To install and replace the batteries, please follow the steps below: Remove the cover.
- Page 7 assigned by the transmitter at start-up and this code must be received and stored by the Projection alarm clock in the first three minutes of power being supplied to it. SETTING UP The Projection clock can be batteries operated or powered by the provided 3.4V AC/DC adapter.
- Page 8 then be displayed on the clock. If this does not happen after 2 minutes, the batteries will need to be removed from both units and reset from step 1. When the transmitter is set up, there is a testing period. Then DCF-77 time code reception is automatically started just after the clock is activated.
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Page 9: Battery Change
temperature reception problems may occur. If the temperature is not being received, then see "868MHz reception", before resetting the units. In the event of changing batteries to the transmitter, the projection clock needs to be reset. (See Resetting the projection clock) RESETTING THE PROJECTION CLOCK To reset the Projection clock to the factory default setting or in case of a malfunction or changing batteries to transmitter, please remove all batteries from the unit and unplug... - Page 10 PROJECTION OF TIME / OUTDOOR TEMPERATURE Note: The projection is a red light, not harmful under normal usage, yet care should be taken to avoid looking directly into the light. When plugged into an AC outlet, the projection alarm can continuously project the time and the outdoor temperature When operating on batteries alone, the projection alarm will only project when the SNOOZE button is pressed or the alarm is sounding.
- Page 11 Note: If the Projection clock is powered through the adapter, the projection will be constantly ON at the highest brightness level unless the brightness level is manually changed to a lower brightness level afterwards. And the brightness of the projection can be change accordingly to enhance the clarity of the projected time by pressing the key.
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Page 12: Dcf-77 Radio Controlled Time
DCF-77 RADIO CONTROLLED TIME The time base for the radio controlled time is a Cesium 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 transmitting range of approximately 1,500 km. - Page 13 Once the outdoor reception test period is completed, the DCF tower icon in the clock display will start flashing in the upper center. This indicates that the clock has detected that there is a radio signal present and is trying to receive it. When the time code is received, the DCF tower becomes permanently lit and the time will be displayed.
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Page 14: Function Keys
During nighttime, 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. FUNCTION KEYS There are 4 function keys located on the front of the projection alarm and one on the top. -
Page 15: Mode/Min Key
SNOOZE key: Activate snooze function • Activate the projection brightness at the highest level • Exit the setting modes • E.L.Back-light-On • AL/HR key: Enter alarm setting mode • Activate or deactivate alarm • Stop alarm and snooze function • Set the hours and day •... -
Page 16: Manual Settings
Stop alarm and snooze function • E.L.Back-light-On • Brightness key Set the brightness level of the projection (in A/C power mode):4 levels: High, • Medium, Low, OFF E.L.Back-light On • Projection Direction key Press to rotate the time/ outdoor temperature projection image in 90° increments •... -
Page 17: Time Zone Setting
12/24-Hour setting • °C/°F setting • TIME ZONE SETTING The time zone default of the Projection clock is “0h”. To set a different time zone: Flashing Press and hold the MODE/MIN key for about 3 seconds. The current time zone value at the bottom of the LCD display starts flashing. -
Page 18: Manual Time Setting
MANUAL TIME SETTING In case the Projection clock cannot detect the DCF-signal (for example due to disturbances, transmitting distance, etc.), the time can be manually set. The clock will then work as a normal Quartz clock. Hour flashing Minutes flashing The hour and the minute digits will start flashing. -
Page 19: Calendar Setting
CALENDAR SETTING: The date default of the Projection clock is 1. 1. in the year 2006. Once the radio- controlled time signals are received, the date is automatically updated. However, if the signals are not received, the date can also be set manually. Flashing Flashing Flashing... - Page 20 12/24 HOUR TIME DISPLAY SETTING: Flashing “12h” or “24h” flashes in the LCD. Press the MODE/MIN key to select the “12h” or “24h” display mode. Confirm with the SNOOZE key and enter the °C/°F temperature setting. °C/°F TEMPERATURE SETTING: The default temperature reading is set to °C (degree Celsius). To select °F (degree Fahrenheit): Flashing...
- Page 21 The “°C” will be flashing. Use the MODE/MIN key to toggle between “°C” and “°F”. Press the SNOOZE key again to confirm and return to the normal display. TIME ALARM SETTING THE ALARM Alarm-ON icon Flashing Press and hold “AL/HOUR” button for about three seconds until the alarm time is flashing.
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Page 22: Activating / Deactivating The Alarm
ACTIVATING / DEACTIVATING THE ALARM After entering the alarm setting mode, the alarm is activated. To toggle between activating and deactivating the alarm, press the “AL/HOUR” button briefly. Alarm-on icon, “(((•)))” will be displayed next to the time display when the alarm is activated. TURNING ALARM OFF (WHILE SOUNDING) While the alarm is sounding, press and release the SNOOZE bar to disable the alarm for 6 minutes. -
Page 23: Temperature Transmitter
Low battery indicator for projection clock Low battery indicator for transmitter TEMPERATURE TRANSMITTER The outdoor temperature is measured and transmitted every 4 seconds. The range of the temperature transmitter may be affected by the temperature. At cold temperatures the transmitting distance may be decreased. Please bear this in mind when placing the transmitter. - Page 24 The distance of the projection alarm clock or transmitter should be at least 2 metres away from any interfering sources such as computer monitors or TV sets. Avoid placing the transmitter onto or in the immediate proximity of metal window frames.
- Page 25 POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER The sensor is supplied with a holder that may be attached to a wall with the two screws supplied. The sensor can also be position on a flat surface by securing the stand to the bottom to the transmitter.
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Page 26: Care And Maintenance
Note: Before permanently fixing the transmitter wall base, place all units in the desired locations to check that the outdoor temperature and humidity readings are receivable. In event that the signal is not received, relocate the transmitter(s) or move them slightly as this may help the signal reception. - Page 27 Precautions shall be taken when handling the batteries. Injuries, burns, or • property damage may be resulted if the batteries are in contact with conducting materials, heat, corrosive materials or explosives. The batteries shall be taken out from the unit before the product is to be stored for a long period of time. Immediately remove all low powered batteries to avoid leakage and damage.
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Page 28: Specifications
Do not expose the units to extreme and sudden temperature changes, this may • lead to rapid changes in forecasts and readings and thereby reduce their accuracy. SPECIFICATIONS: Temperature measuring range: Indoor : -9.9ºC to +37.7ºC with 0.1°C resolution 14.2ºF to 99.9ºF with 0.2ºF resolution (“OF.L”... -
Page 29: Liability Disclaimer
Power consumption: Projection alarm clock : 2 x AA, IEC LR6, 1.5V Outdoor transmitter : 2 x AA, IEC LR6, 1.5V Battery life cycle : approximately 24 months (Alkaline batteries recommended) Dimensions (L x W x H): Projection alarm clock : 134.1 x 48.5 x 90.6 mm Outdoor transmitter : 38.2 x 21.2 x 128.3 mm (wall bracket excluded) LIABILITY DISCLAIMER... - Page 30 The unrestricted disposal of electronic waste may do harm on public health and • the quality of environment. This product must however not be thrown in general rubbish collection points. • As stated on the gift box and labeled on the product, reading the “User manual” is •...