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Atomic Alarm Clock  

 

 

 

Instruction Manual 

 

Introduction

 
Congratulations on purchasing the Atomic Alarm Clock with WWVB Radio controlled time, 
calendar, 12/24 hours display, time zone with US map, indoor temperature and two alarms 
settings. This innovative product is ideal for home or office use.  Please read this instruction 
manual to enjoy the full benefits of all the features. 
 
 
 
 
 

 

 

 
 

 

 
 
 

Features: 

 

• 

WWVB Radio controlled time with manual setting option 

Function keys 

Battery 
compartment 

Snooze button 

     

 

          

• 

12/24 hour time display 

• 

Time zone with USA map (Pacific Time(-8h); (Mountain Time (-7h); Central Time (-6h); 
Eastern Time(-5h) or GMT 

• 

Automatic or manual ON/OFF daylight saving time 

• 

Indoor temperature reading (ºC/ºF user selectable) 

• 

2 alarm times (crescendo and normal sounding alarms)  

• 

snooze interval setting (from 1 to 59 minutes) 

• 

Calendar display (weekday/month/date or month/ date/year) 

• 

LCD back-light 

 

Setting up the  Atomic Alarm Clock: 

 
The clock uses 1 x AA LR6 battery (Alkaline recommended). To set please follow these easy 
steps: 
 
 
 
 
 
 

 

 

 

 

 

 

 
1.  Slide the battery cover downwards as indicated by the triangle to reveal the battery 

compartment 

Battery cover 

Battery  
compartment 

2.  Observing the correct polarisation insert the battery. 
3.  Replace battery cover. 

 

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Summary of Contents for WT-2100

Page 1: ...ay Time zone with USA map Pacific Time 8h Mountain Time 7h Central Time 6h Eastern Time 5h or GMT Automatic or manual ON OFF daylight saving time Indoor temperature reading ºC ºF user selectable 2 alarm times crescendo and normal sounding alarms snooze interval setting from 1 to 59 minutes Calendar display weekday month date or month date year LCD back light Setting up the Atomic Alarm Clock The c...

Page 2: ... set time and date Please see notes on Radio Controlled Time Reception and Manual Time Setting WWVB icon flashing Location test sequence for better reception Radio controlled Time Reception During reception the WWVB tower icon in the LCD will start flashing This indicates that the WWVB time signal is present and the clock is trying to receive it At the same time three digits 000 will appear below ...

Page 3: ... time is ON when 2 is displayed Snooze key Used to activate the snooze during alarm Used to Display alarm time set for Alarm 1 and 2 Used to exit the setting modes Alarm setting mode Press ALM1 or ALM2 keys for 2 seconds to enter the ALM1 or ALM2 setting mode Set the alarm hour by pressing ALM1 HOUR key Set the alarm minutes by pressing AML2 MIN key Exit Alarm setting mode by pressing the Snooze k...

Page 4: ...e WWVB signal which means the WWVB tower icon will not show at all on the LCD see Trouble Shooting because it is only visible when the signal is present To overcome this problem the time can be manually set for the time being see Manual Time Setting below by entering the setting mode 1 Following on from the Snooze setting mode the hour digits will start flashing in the manual time setting mode Use...

Page 5: ...a m local time If the time signal data is received it is converted into radio controlled time from atomic clock run by the NIST and then be displayed on the LCD The received time will automatically override the manually set time and date When clock is attempting reception the tower icon on the LCD will start flashing if the WWVB time signal is present When reception is successful no more radio sig...

Page 6: ...cations Time source WWVB Time frequency 60 kHz Indoor temperature measuring range 21 8ºF to 156 2ºF with 0 1ºF resolution 29 9ºC to 69ºC with 0 1ºC resolution OFL displayed if outside this range Indoor temperature checking interval every 10 seconds Power source 1 x AA IEC LR6 1 5V Battery life cycle Approximately 12 months Alkaline batteries recommended Dimensions L x W x H 95 x 90 x 49mm 6 ...

Page 7: ...equential or incidental damages therefore the above exclusion of limitation may not apply to you For warranty work technical support or information contact La Crosse Technology 1116 South Oak Street La Crescent MN 55947 Phone 507 895 7095 Fax 507 895 8000 e mail support lacrossetechnology com warranty work sales lacrossetechnology com information on other products Website www lacrossetechnology co...

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