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La Crosse Technology, Ltd  

Page 2 

 

How do I adjust the Temperature or Humidity? ............................................................................... 5 

 

BATTERIES 

 

Explanation: Many problems are resolved with fresh batteries of the appropriate voltage. 

Many items sent in under warranty work when tested with fresh batteries. Batteries 

manufactured this year will have an expiration date 10 years (or more) in the future. Battery 

technology has improved, and batteries will maintain voltage longer in storage. However, 

the environment the batteries reside in for the 10 years can deplete the power. 

 

 

We suggest a name-brand Alkaline battery.  

 

A minimum voltage of 1.48V is necessary for proper performance.   

 

Use a battery dated at least six years in advance of the current year. Batteries dated 

earlier than six years from now may still work but may be unstable in performance.   

 

Good name-brand batteries make less noise, which reduces the chance of RF (radio 

frequency) interference from the battery compartment.  

 

BATTERY LIFE 

 

 

Battery life is over 12 months with one battery in the movement. 

 

Battery life can be up to 3 years with two additional batteries in the side compartments. 

 

ATOMIC CLOCK FACTORY RESTART 

 

Explanation: The factory restart returns the atomic clock to an “out-of-the-box” state and 

often resolves an issue.  

  

Factory Restart: 

1.

 

Remove all batteries from the clock for 15 minutes.  

2.

 

Press the Manual Set Tab at least 20 times to clear all memory.  

3.

 

Insert fresh Alkaline battery into the clock.  

4.

 

The hands will spin to 12:00, 4:00 or 8:00 and wait for the WWVB time signal. 

 

SUPPORTED TIME ZONES 

 

 

This atomic clock offers 4 time zones: Pacific, Mountain, Central and Eastern. 

 

La Crosse Technology

®

 does not make an analog clock with more than four time 

zones.  

 

The atomic clock works in North America.  

 

Outside of North America, the atomic clock will not receive a WWVB signal, but will 

keep time like a quartz clock if manually set. 

 

TIME IS INCORRECT 

 

 

Indicative of non-receipt of WWVB signal 

 

Electrical storms between you and Colorado can interfere with the WWVB signal  

 

Replace battery and perform restart procedure. Allow up to 5 days to receive a signal. 

Summary of Contents for 404-1946

Page 1: ...Zones 2 Time is Incorrect 2 Clock is incorrect by Hours but minutes are correct 3 Daylight Saving Time 3 Manually Set Time 3 How long will the battery last 3 Can I shut off the WWVB signal 3 Is there a booster antenna to receive the WWVB signal in a difficult location 4 Can I wire a control timing circuit to the La Crosse Technology atomic clock 4 Why do the hands spin once or twice everyday 4 Han...

Page 2: ...LIFE Battery life is over 12 months with one battery in the movement Battery life can be up to 3 years with two additional batteries in the side compartments ATOMIC CLOCK FACTORY RESTART Explanation The factory restart returns the atomic clock to an out of the box state and often resolves an issue Factory Restart 1 Remove all batteries from the clock for 15 minutes 2 Press the Manual Set Tab at le...

Page 3: ... occur Press the DST indicator once If the indicator is OFF the clock will not change Default is ON Check for fresh batteries Without proper batteries the antenna will have a harder time picking up the signal Position the atomic clock in a window with the front or back facing Ft Collins Colorado and leave for up to five nights If you do not have a window facing this direction position the clock ne...

Page 4: ...ON STOP This is indicative of a low or overpowered battery number 1 warranty issue Replace battery and perform restart procedure Allow 5 days to catch the WWVB signal If constant spinning continues the movement may need replacement HANDS JUMPS OR JERKS AROUND THE DIAL This is indicative of a low or overpowered battery number 1 warranty issue Replace battery and perform the restart procedure Allow ...

Page 5: ...nal OUTDOOR Select a location sheltered from direct sunlight and rain preferably under a roof or porch area and facing Colorado for better reception of the WWVB signal This clock is designed for indoor and outdoor use but only in a dry environment and in a temperature range between 10 F and 131 F Note The clock is NOT waterproof If left in the elements water may enter the clock and damage it HOW D...

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