Model: BBB87740 www.lacrossetechnology.com/support
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Temperature and Humidity
The La Crosse Technology
®
atomic wall clock has two analog sensors
that measure surrounding temperature and humidity. The temperature
information is displayed in degrees Fahrenheit and Celsius, and humidity
data is displayed in percentage.
The thermometer and hygrometer have been calibrated at the factory.
To check the sensors accuracy, tune to your local weather forecast
information broadcast for the latest weather information. The sensors
may be adjusted.
To manually adjust the sensors, use a flat tipped screwdriver to gently
turn the temperature or humidity sensor screw at the back of the clock
until desired setting has been reached.
Daylight Saving Time
The National Institute of Standards and Technology and WWVB encode
a special DST “bit” in the WWVB transmission for DST. Your clock will
read this information and automatically advance the hands one hour in
the spring and eleven hours in the fall.
Arizona:
If you live in an area that does not recognize DST, you must
press the DST button one time only to turn OFF.
Manual WWVB Time Signal Search
For information about WWVB, visit:
www.nist.gov/pml/div688/grp40/wwvb.cfm
Outer ring
displays
temperature
in degree
Fahrenheit
Inner ring
displays
temperature
in degree
Celsius
Humidity
display
in %
Calibration
screw for
thermometer
Calibration
screw for
hygrometer
