User manual LA CROSS TECHNOLOGY WS-1515U-IT

[. . . ] PROFESSIONAL WEATHER CENTER WS-1515U-IT Instruction Manual Table of Contents Topic Features Setting up Function keys LCD Screen Manual Setting Time alarm setting Weather alarm operations Hysteresis Weather forecast and weather tendency Wind direction and wind speed measurement Rainfall measurement Viewing history data Viewing the min/ max weather data Switch On/ Off buzzer Outdoor transmission 915 MHz reception Positioning Care and Maintenance Specification Warranty Info Page 3 6 12 14 16 24 25 31 32 36 37 37 39 46 48 49 53 54 57 Congratulations on purchasing this state-of-the-art Professional Weather Center as an example of excellent design and innovative technology. Featuring time, date, calendar, weather forecast, wind direction and speed, rainfall, indoor temperature, outdoor temperature and outdoor humidity, air pressure and various alarm settings for different weather conditions, this Weather Center will provide you with extensive weather information and forecast. This product offers: INSTANT TRANSMISSION is the stateof-the-art new wireless transmission technology, exclusively designed and developed by LA CROSSE TECHNOLOGY. INSTANT TRANSMISSION offers you an immediate update (every 4. 5 seconds!) (6. 5 SECONDS FOR RAIN) of all your outdoor data measured from the transmitters: follow your climatic FEATURES: Weather Center Function keys Hanging hole LCD Battery compartment Function keys Stand · · · · · · · · · · · Time display (manual setting) 12/24 hour time display Calendar display (weekday, date, month, year) Time alarm function Weather forecasting function with 3 weather icons and weather tendency indicator Dew point display in ºF/°C Outdoor temperature display in ºF/°C Outdoor Humidity display as RH% MIN/MAX value of outdoor temperature and humidity display with time & date of recording Indoor temperature display in ºF/°C Display MIN/MAX value of outdoor temperature, outdoor humidity, dew point, wind chill and relative pressure with time and date of recording 72 73 · · · · · · · · · · · · · · · · · · Low/High outdoor temperature and humidity alarm Relative air pressure displayed in inHg or hPa Air pressure tendency indicator for the past 12 hours (bar graph format) LCD contrast selectable Low battery indicator Wind direction displayed in 16 steps Wind speed and gust displayed in mph, km/h, or m/s, and Beaufort scale Wind chill displayed in F of C High alarm function for wind speed Manual reset of outdoor temperature, outdoor humidity, dew point, wind chill, pressure, wind speed, gust, and 24h rainfall 24h rainfall display in inch or mm Total rainfall display in inch or mm Storm warning alarm Buzzer on/off selectable Storage of 140 sets of history weather data recorded in 3-hour intervals Wireless transmission at 915 MHz Transmission range up to 330 feet (100 meters) Back ­light?(To be confirmed by LCU) SETTING UP: Wireless transmission at 915 MHz - thermohygro and rain sensor to the Weather Center Weather Center Thermo-hygro Sensor · Remote transmission of the outdoor temperature and humidity to the Weather Center at 915 MHz · Weather-resistant casing · Wall mounting case (to be mounted in a sheltered place. [. . . ] The wind speed digit will start flashing. Press the + or MIN/MAX key to set the high wind speed alarm value. 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. HIGH AND LOW OUTDOOR HUMIDITY ALARM SETTING Note: The High and Low outdoor humidity alarm can be set On/Off independently according to your needs. 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 +77°F and the current value moves to +77°F, the alarm will be activated (if it has been enabled). Now when the temperature drops to +76. 8°F or below and 86 87 thereafter again increases to beyond +77°F, the data will be blinking, but no alarm will be activated. It has to drop to below +75. 2°F (with a pre-set hysteresis of 1. 8°F) 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. 8°F 3% RH 3. 1 mph Note: The temperature or humidity data will keep on flashing even after a key has been 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) about 75% due to the varying areas the Weather Center has been designed for use. In areas that experience sudden changes in weather (for example from sunny to rain), the Weather Center will be more accurate compared to use in areas where the weather is stagnant most of the time (for example mostly sunny). If the Weather Center is moved to another location significantly higher or lower than its initial standing point (for example from the ground floor to the upper floors of a house), discard the weather forecast for the next 48-60 hours, as the Weather Center may mistake the new location as being a possible change in air-pressure when really it is due to the slight change of altitude. WEATHER TENDENCY INDICATOR Working together with the weather icons is the weather tendency indicators (arrow located on the left and right sides of the weather icons). When the indicator points upwards, it means that the air-pressure is increasing and the weather is expected to improve, but when indicator points downwards, the air-pressure is dropping and the weather is expected to become worse. Taking this into account, one can see how the weather has changed and is expected to change. For example, if the indicator is pointing downwards together with cloud and sun icons, then the last noticeable change in the weather was when it was sunny (the sun icon only). Therefore, the next change in the weather will be cloud with rain icons since the indicator is pointing downwards. Note: Once the weather tendency indicator has registered a change in air pressure, it will remain permanently visualized on the LCD. WEATHER FORECAST AND WEATHER TENDENCY WEATHER FORECASTING ICONS: Weather forecasting icons are displayed in any of the following combinations at the right bottom part of LCD: TENDENCY TENDENCY TENDENCY Sunny Cloudy with sunny intervals Rainy For every sudden or significant change in the air pressure, the weather icons will update accordingly to represent the change in weather. (Every time a new average pressure value has been obtained (once per minute), this value is compared with an internal reference value. If the difference between these values is bigger than the selected weather tendency sensitivity, the weather-icon changes, either for worse or for better. In this case, the current pressure value becomes the new weather tendency reference. ) If the icons do not change, either the air pressure has not changed or the change has been too small for the Weather Center to register. So you may adjust the "sensitivity" of the pressure change checking in the setting mode ­see WEATHER TENDENCY SENSITIVITY VALUE SETTING above. 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. [. . . ] This warranty covers only actual defects within the product itself, and does not cover the cost of installation or removal from a fixed installation, normal set-up or adjustments, claims based on misrepresentation by the seller or performance variations resulting from installation-related circumstances. LA CROSSE TECHNOLOGY, LTD WILL NOT ASSUME LIABILITY FOR INCIDENTAL, CONSEQUENTIAL, PUNITIVE, OR OTHER SIMILAR DAMAGES ASSOCIATED WITH THE OPERATION OR MALFUNCTION OF THIS PRODUCT. THIS PRODUCT IS NOT TO BE USED FOR MEDICAL PURPOSES OR FOR PUBLIC INFORMATION. This warranty gives you specific legal rights. [. . . ]