La Crosse Technology WS-9049 Battery Change, Reset, About Wwvb Radio Controlled Time

2. Insert batteries observing the correct polarity (see marking).

3.Replace compartment cover.

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 depot.

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limited during daylight hours. The wireless weather station will search for a signal every night when reception is best.

The WWVB radio station receives the time data 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 detail, visit http://www.boulder.nist.gov/timefreq.htm. To listen to the NIST time, call (303)499-7111. This number will connect you to an automated time, announced at the top of the minute in “Coordinated Universal Time”, which is also known as Greenwich Mean Time (GMT). This time does not follow Daylight Saving Time changes. After the top of the minute, a tone will sound for every second. It is possible that your wireless weather station may not be exactly on the second due to the variance in the quartz. However, the clock will adjust the quartz timing over the course of several days to be very accurate; under 0.10 seconds per day.

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RESET

The Weather Station and the Thermo-hygro transmitter need to be reset when one of the following conditions occur:

∙Unsuccessful 915 MHz signal reception.

∙Malfunction on the units.

∙Battery replacement.

To perform a reset, remove all batteries from the units. Wait for at least 1 minute before powering up the Weather station again. Proceed from step

1in “Setting Up”.

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 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 projection station. However, due to the nature of the Earth’s Ionosphere, reception is very

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FUNCTION KEYS:

Weather Station

The Weather Station has 5 function keys:

SET key	IN key	ALM/DATE key	OUT/+ key
		SNOOZE/CH key

SET key

∙Press and hold the key to enter manual set modes: LCD contrast, time zone, DST ON/OFF, time reception ON/OFF, 12/24 hour display, manual time setting, calendar, temperature °F/°C, pressure hPa/inHg, relative pressure value, and weather icon sensitivity setting

∙Reset all MIN/MAX records

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