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404-1210S          www.lacrossetechnology.com/support               

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Model: 404-1210S 
Instruction Manual 

DC: 070716

 

10” Atomic Wall Clock 

 

 

Get Started 

 

1: 

Slide the switch to select a time zone. 

 

2:

 Insert 1 fresh AA, Alkaline battery according to the polarity  

     marked on the case. 
 

3:

 For the best reception, please place clock on a wall that faces  

    Ft. Collins, Colorado. During the night, your clock will   
    automatically set itself. 

 

  When the battery is installed, the hands will move to the 12:00 

position and search for the radio signal.  

  If the radio signal is not received in the first 10 minutes, 

the 

clock will start running from the 12:00 position

 and will 

continue to run.   

  The clock is searching for the WWVB signal and once the 

radio signal is decoded, the hands will automatically adjust to 
the correct time. This may take up to 5 nights if there is 
atmospheric interference. 

 
 

Reset:

 If the clock does not respond to the various function 

modes, press the RESET button on the movement case. 
 
 

Summary of Contents for 404-1210S

Page 1: ...omatically set itself When the battery is installed the hands will move to the 12 00 position and search for the radio signal If the radio signal is not received in the first 10 minutes the clock will start running from the 12 00 position and will continue to run The clock is searching for the WWVB signal and once the radio signal is decoded the hands will automatically adjust to the correct time ...

Page 2: ... to maintain accuracy Remove the battery when the clock will not be in use for an extended period Manual Set Time On rare occasions the clock may not be able to utilize the radio controlled function because of the strength of the signal or the geographic location In this case the clock can be set manually and used as a regular quartz wall clock Set the clock manually 1 Hold the SET button for 3 se...

Page 3: ...ed or over powered 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 If you live in an area that does not recognize DST you must slide the DST switch OFF To reactivate the DST program s...

Page 4: ...gnal Care and Maintenance Always purchase the correct size and grade of battery suitable for intended use Clean the battery contacts and also those of the device prior to battery installation Ensure the battery installed with correct polarity and Remove battery from clock which is not to be used for an extended period of time Remove expired battery promptly Warranty and Support Information La Cros...

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