User manual LA CROSSE TECHNOLOGY WS1700

[. . . ] 868MHz WEATHER STATION Instruction Manual INTRODUCTION: Congratulations on purchasing this state-of-the-art weather station as an example of excellent design and innovative measuring technique. Featuring time, date, calendar, weather forecast, wind direction, wind gust and wind speed, rainfall, indoor/outdoor temperature and outdoor humidity, air pressure and various alarm settings for different weather conditions, this weather station will provide you with various weather information and weather forecast. Pages after pages, you will discover that the operation of your weather station is really simple !« Instant Transmission+» is the up and coming state-of-the-art new wireless transmission technology, exclusively designed and developed by LA CROSSE TECHNOLOGY. [. . . ] Press the SET key to switch on or off the alarm. (The showing of the icon ((( ))) means that the alarm is switched on. ) Press the HISTORY key or wait for about 30 seconds and the display will return to normal display mode automatically. In case the humidity value meets the condition for high alarm or low alarm, the value will be blinking, along with the corresponding icon ("HI AL"/ "LO AL"). User may press any key to stop the sound. WIND SPEED ALARM SETTING The High wind speed alarm can be set by following the steps below. In the normal display mode, press the ALARM key six times. The High wind speed alarm display will be shown. 2. Press and hold the SET key for about 2 seconds. The wind speed digit will start flashing. Press the + or MIN/MAX key to set the high wind speed alarm value. 101 3. 4. Press the ALARM key to confirm the setting. Press the SET key to switch on or off the alarm. (The showing of the icon ((( ))) means that the alarm is switched on. ) Press the ALARM key once to return to the normal display mode. In case the wind speed exceeds the condition for high wind speed alarm, the value will be flashing, along with the corresponding high alarm icon ("HI AL"). User may press any key to stop the sound. HYSTERESIS To compensate for fluctuation of the measured data, which may cause the weather alarm to sound constantly if the measured reading is close to your set level, a hysteresis function has been implemented for each weather alarm. For example, if the high temperature alarm is set to +25°C and the current value moves to +25°C, the alarm will be activated (if it has been enabled). Now when the temperature drops to +24. 9°C or below and thereafter again increases to beyond +25°C, the data will be blinking, but no alarm will be activated. It has to drop to below +24°C (with a pre-set hysteresis of 1°C) so that the alarm can be produced again. Hysteresis values for the various weather data types are given in the following table: Weather data Temperature Humidity Wind speed Hysteresis 1°C 3% RH 5 km/h Note: The temperature or humidity data will keep on flashing even after a key has been 102 pressed to stop the alarm or buzzer has been switched off, to indicate that the current weather condition is out of the pre-set limit(s) WEATHER FORECAST AND WEATHER TENDENCY: The weather forecast icons (Weather girl): One of the 15 different weather icons (featured by Weather girl with different clothing) is displayed in the centre of LCD, which indicate the different forecast weather condition due to air pressure level (Sunny, Sunny + Cloudy or Cloudy + Rainy) and the current outdoor temperature (Temperature value detected by Transmitter channel 1) : 78. 8°F ( 26°C) 66. 2 to 78. 6°F (19 to 25. 9°C) 50 to 66°F (10 to 18. 9°C) 32 to 49. 8°F (0 to 9. 9°C) < 32°F (< 0°C) Sunny 103 78. 8°F ( 26°C) 66. 2 to 78. 6°F (19 to 25. 9°C) 50 to 66°F (10 to 18. 9°C) 32 to 49. 8°F (0 to 9. 9°C) < 32°F (< 0°C) Sunny + Cloudy 78. 8°F ( 26°C) 66. 2 to 78. 6°F (19 to 25. 9°C) 50 to 66°F (10 to 18. 9°C) 32 to 49. 8°F (0 to 9. 9°C) < 32°F (< 0°C) Cloudy + Rainy 104 For every sudden or significant change in the air pressure, the weather icons will update accordingly to represent the change in weather. If the icons do not change, then it means either the air pressure has not changed or the change has been too slow for the Weather Projection Station to register. However, if the icon displayed is a sun or raining cloud, there will be no change of icon if the weather gets any better (with sunny icon) or worse (with rainy icon) since the icons are already at their extremes. The icons displayed forecasts the weather in terms of getting better or worse and not necessarily sunny or rainy as each icon indicates. For example, if the current weather is cloudy and the rainy icon is displayed, it does not mean that the product is faulty because it is not raining. It simply means that the air pressure has dropped and the weather is expected to get worse but not necessarily rainy. Note : After setting up, readings for weather forecasts should be disregarded for the next 1224 hours. This will allow sufficient time for the Weather Station to collect air pressure data at a constant altitude and therefore result in a more accurate forecast. Common to weather forecasting, absolute accuracy cannot be guaranteed. [. . . ] 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. Replace only with new batteries of the recommended type. · When cleaning the display and casings, use a soft damp cloth only. [. . . ]