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La Crosse Technology DCF-77 Instruction Manual

Radio controlled projection alarm clock 868 mhz
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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.
product, please read this operating manual.
« Instant Transmission+» is the up and coming state-of-the-art new wireless
transmission technology, exclusively designed and developed by LA CROSSE
TECHNOLOGY.
"IT +" offers you an immediate update of all your outdoor data measured from
the transmitters: follow your climatic variations in real-time!
To enjoy the full benefits of this innovative
40

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Summary of Contents for La Crosse Technology DCF-77

  • 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. « Instant Transmission+» is the up and coming state-of-the-art new wireless transmission technology, exclusively designed and developed by LA CROSSE TECHNOLOGY.
  • Page 2 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) • Time projection (hour and minute) • 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 TEMPERATURE TRANSMITTER: •...

  • Page 4: To Install And Replace Batteries Into The Projection Alarm

    TO INSTALL AND REPLACE BATTERIES INTO THE PROJECTION ALARM The Projection Alarm 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.

  • 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 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. Insert the batteries, observing the correct polarity (see marking).
  • Page 7 SETTING UP The Projection clock can be batteries operated or powered by the provided 3.4V AC/DC adapter. First, insert 2 x AA, IEC LR6, 1.5V batteries into the projection clock (or use the A/C adapter to power up). Once the batteries are in place, all segments of the LCD will light up briefly.
  • Page 8 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. This takes typically between 3-5 minutes in good conditions. This time period is an excellent opportunity to locate the transmitter in suitable location outdoors.

  • Page 9: Battery Change

    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 the AC/DC adapter from any power source.

  • Page 10: Projection Of Time

    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.

  • Page 12: Dcf-77 Radio Controlled Time

    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. Your radio-controlled Projection alarm clock receives this signal and converts it to show the precise time in summer or wintertime.
  • Page 13 The quality of the reception depends greatly on the geographic location. In normal cases, there should be no reception problems within a 1500km radius of Frankfurt. Once the outdoor reception test period is completed, the DCF tower icon in the clock display will start flashing in the upper center.

  • Page 14: Function Keys

    • Within ferro-concrete rooms (basements, superstructures), the received signal is naturally weakened. In extreme cases, please place the unit close to a window and/or point its front or back towards the Frankfurt transmitter. During nighttime, the atmospheric disturbances are usually less severe and reception is possible in most cases.
  • Page 15 AL / HOUR MODE/ MIN Brightness key Projection Direction 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 •...

  • Page 16: Mode/Min Key

    • Set the hours and day • E.L.Back-light-On MODE/MIN key: • Enter time zone, manual time, year, day, month, 12/24 hour time display, ºC / ºF temperature format setting modes • Set the minutes, year, month, 12/24 hour time format, ºC / ºF temperature format •...

  • Page 17: Manual Settings

    Projection Direction key • Press to rotate the time/ outdoor temperature projection image in 90° increments • Press to activate the EL back-light MANUAL SETTINGS: The following manual settings can be changed when pressing the MODE/MIN key for: • Time zone setting •...

  • Page 18: Manual Time Setting

    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. Press and release MODE/MIN key to adjust the time zone. The range runs from 0h to 12h, then –12h to 0h, in consecutive 1-hour intervals.

  • Page 19: Calendar Setting

    Use the AL/HOUR key to set the hour; MODE/MIN key to set the minute. Confirm with the SNOOZE key and enter the Calendar setting. Note: The unit will still try and receive the signal at 2:00 am despite it being manually set. When it does receive the signal, it will change the manually set time into the received time.
  • Page 20 The year starts flashing. Use the MODE/MIN key to set the year (between year 2001 to 2029 Press the SNOOZE key to confirm and to enter the month and day setting. The month and day digits will start flashing. Use the AL/HOUR key to set the day and MODE/MIN key to set the month. Confirm with the SNOOZE key and enter the 12/24 hour time display setting.
  • Page 21 °C/°F TEMPERATURE SETTING: The default temperature reading is set to °C (degree Celsius). To select °F (degree Fahrenheit): Flashing 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.

  • Page 22: Activating / Deactivating The Alarm

    Press and hold “AL/HOUR” button for about three seconds until the alarm time is flashing. Press and release “AL/HOUR” to advance the hour, and “MODE/MIN” to advance minute. Press the SNOOZE key to confirm. The alarm is now set and activated. ACTIVATING / DEACTIVATING THE ALARM After entering the alarm setting mode, the alarm is activated.

  • Page 23: Low Battery Indicator

    LOW BATTERY INDICATOR Low battery indicator is displayed on the LCD when the batteries require changing. 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.
  • Page 24 setting up (or outdoor display always show “- -. -” in the outdoor section of the Weather station during normal operation), please check the following points: 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.
  • Page 25 The transmission range is around 100 metres from the Temperature transmitter to the projection alarm clock (in open space). However, this depends on the surrounding environment and interference levels. If no reception is possible despite the observation of these factors, all system units have to be reset (see “Setting up” above). POSITIONING THE OUTDOOR TEMPERATURE TRANSMITTER The sensor is supplied with a holder that may be attached to a wall with the two screws supplied.
  • Page 26 To wall mount: 1. Secure the bracket onto a desired wall using the screws and plastic anchors. 2. Clip the sensor onto the bracket. 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.

  • Page 27: Care And Maintenance

    please ensure that the Temperature Station can receive the 868 MHz signal from the Outdoor Transmitter at the positions that you wish to situate them. CARE AND MAINTENANCE: • Extreme temperatures, vibration and shock should be avoided as these may cause damage to the unit and give inaccurate forecasts and readings.

  • Page 28: Specifications

    • Do not make any repair attempts to the unit. Return them to their original point of purchase for repair by a qualified engineer. Opening and tampering with the unit may invalidate their guarantee. • Never touch the exposed electronic circuit of the device as there is a danger of electric shock should it become exposed.

  • Page 29: Liability Disclaimer

    Indoor temperature checking intervals : every 15 seconds Outdoor Temperature reception every 4 seconds (or every 15 minutes if data are lost and display “--.-“) Transmission range : up to 100 meters (open space) 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)
  • Page 30 • Please contact your local or/and regional authorities to retrieve the addresses of legal dumping grounds with selective collection • All electronic instruments must from now on be recycled. User shall take an active part in the reuse, recycling and recovery of the electrical and electronic waste.
  • Page 31 • No part of this manual may be reproduced without written consent of the manufacturer. R&TTE DIRECTIVE 1999/5/EC Summary of the Declaration of Conformity : We hereby declare that this wireless transmission device does comply with the essential requirements of R&TTE Directive 1999/5/EC.

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