User manual LA CROSS TECHNOLOGY WS-8248

[. . . ] WS-8248 ATOMIC CLOCK WITH INDOOR TEMP/HUMIDITY AND OUTDOOR TEMPERATURE Instruction Manual FEATURES: Hanging holes OUTDOOR TEMPERATURE TRANSMITTER: Mounting Bracket ATOMIC CLOCK: LCD1 display · Remote transmission of outdoor temperature to the atomic clock by 433 MHz signals · Wall mounting case Battery cover LCD2 display Function keys TO INSTALL AND REPLACE BATTERIES IN THE TEMPERATURE TRANSMITTER The transmitter uses 2 x AA, 1. 5V batteries. To install and replace the batteries, please follow the steps below: 1. Insert the batteries, observing the correct polarity (see marking inside battery compartment). Alkaline batteries are recommended for use in both units. [. . . ] If no keys are pressed for at least 15 seconds in setting mode, the atomic clock will automatically switch back to normal display mode. ALARM SETTING 433MHz RECEPTION CHECK FOR OUTDOOR TEMPERATURE TRANSMITTER The atomic clock will receive the temperature data within 4 minutes. If the temperature data has not been received 4 minutes after setting up (the display shows "- - -"), then please check the following points: 1. The distance of the atomic clock or outdoor temperature transmitter should be at least 6 feet (2 meters) away from any interfering sources such as computer monitors or TV sets. Avoid placing the receiver onto or in the immediate proximity of metal window frames. Using other electrical products such as headphones or speakers operating on the same signal frequency (433MHz) may prevent correct signal transmission and reception. Neighbors using electrical devices operating on the 433MHz signal frequency can also cause interference. Note: When the 433 MHz signal is received correctly, do not re-open the battery cover of either the outdoor temperature transmitter or atomic clock, as the batteries may spring free from the contacts and force a false reset. The atomic clock will search for a signal every night when reception is best. The WWVB radio station derives its signal from the NIST atomic clock in Boulder, Colorado. A team of atomic physicists continually measures every second of every day to an accuracy of ten billionths of a second a day. These physicists have created an international standard, measuring a second as 9, 192, 631, 770 vibrations of a Cesium 133 atom in a vacuum. This atomic clock regulates the WWVB transmitter. Once the outdoor temperature is displayed on the atomic clock, the WWVB tower icon in the clock display will start flashing in the top center of the LCD. This indicates that the clock has detected a radio signal and is trying to receive it. When the time code is received, the WWVB tower becomes permanently lit and the time will be displayed. If the tower icon flashes, but does not set the time or the WWVB tower does not appear at all, then please take note of the following: · Recommended distance to any interfering sources like computer monitors or TV sets is a minimum of 6 feet (2 meters). · 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 Fort Collins, Colorado, transmitter. The moon phases appear in the middle of the lower LCD. There are 12 visible Moon Phases that will show in the LCD: MOON PHASES FOR THE WS-8248 New Moon Small Waxing Crescent Large Waxing First Quarter Crescent Small Waxing Gibbous Large Waxing Gibbous Full Moon Large Waning Gibbous Small Waning Gibbous Last Quarter Large Waning Crescent Small Waning Crescent POSITIONING Before permanently mounting ensure that the atomic clock is able to receive WWVB signals from the desired location. Also, extreme and sudden changes in temperature will decrease the accuracy of the atomic clock, and changes in elevation will result with inaccurate temperatures readings for the next 12 to 24 hours. These changes will require a 12 to 24 hour wait before obtaining reliable data. To achieve a true temperature reading, avoid mounting where direct sunlight can reach the outdoor temperature transmitter. [. . . ] Replacement parts and products assume the remaining original warranty, or ninety (90) days, whichever is longer. La Crosse Technology, Ltd will pay all expenses for labor and materials for all repairs covered by this warranty. If necessary repairs are not covered by this warranty, or if a product is examined which is not in need or repair, you will be charged for the repairs or examination. The owner must pay any shipping charges incurred in getting your La Crosse Technology, Ltd product to a La Crosse Technology, Ltd authorized service center. [. . . ]