La Crosse Technology WS-9119U - Manual (Page 3)

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HOW TO INSTALL AND REPLACE BATTERIES IN THE INTELLIGENT WEATHER STATION
The intelligent weather station uses 3 AA (alkaline recommended) batteries. When the batteries need to be replaced the
low battery symbol will appear on the LCD.
To install and replace the batteries, please follow the steps below:
1.
Insert finger or other solid object in the space at the bottom center of the
battery compartment and lift up to remove the cover.
2. Insert batteries observing the correct polarity (see battery compartment
marking).
3. Replace battery cover.
HOW TO INSTALL AND REPLACE BATTERIES IN THE REMOTE TEMPERATURE/HUMIDITY
SENSOR
The remote temperature/humidity sensor uses 2 x AA IEC LR6, 1.5V batteries. To install and replace
the batteries, please follow the steps below:
1.
Remove the battery cover at the front side with a small screwdriver.
2. Insert the batteries, observing the correct polarity (see battery compartment marking).
3. Replace the battery cover on the unit.
Note:
When changing the batteries in any of the units, all units need to be reset by following the setting up procedures. This is
because the transmitter at start-up assigns a random security code and this code must be received and stored by the
intelligent weather station in the first 3 minutes of power being supplied to it.
BATTERY CHANGE:
It is recommended to replace the batteries in all units on an annual basis to ensure optimum accuracy of these units.
Please participate in the preservation of the environment. Return used batteries to an authorized
facility.
ABOUT WWVB (Radio Controlled Time)
The NIST (National Institute of Standards and Technology—Time and Frequency Division) WWVB radio station is
located in Ft. Collins, Colorado, and transmits the exact time and date signal continuously throughout the United States
at 60 kHz. The signal can be received up to 2,000 miles away through the internal antenna in the Weather Station.
However, due to the nature of the Earth’s Ionosphere, reception is very limited during daylight hours. The weather
station 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 is continually measuring every second, of every
day, to an accuracy of ten billionths of a second per 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. For more information on the
atomic clock and WWVB please see the NIST website at
http://www.boulder.nist.gov/timefreq/stations/wwvb.htm .