La Crosse Technology WT-2150A Instruction Manual Download Page 4

4) 

Snooze:

 Press the MODE/+ key to select the desired snooze length from 0 to 59 minutes. Default 

is 10 minutes; 0 is no snooze (pressing the SNOOZE bar turns off the alarm). Press the SET key. 

5) 

Manual time setting:

 

This is not necessary unless the alarm clock did not pick up a signal upon 

start up and it is not favorable to wait overnight for time set. If the time is manually set, be sure to set 
the time to the correct AM/PM time.

 

 

a) Press the MODE/+ key to set the hour. Press the SET key. 
b) Press the MODE/+ key to set the minute. Press the SET key. 
c) Press the MODE/+ key to set the year. Press the SET key. 
d) Press the MODE/+ key to set the month. Press the SET key. 
e) Press the MODE/+ key to set the day. Press the SET key. 
f)  Press the MODE/+ key to set the weekday. Press the SET key. 
g) Press the MODE/+ key to set 12- or 24-hour mode. Press the SET key. 
 

6) 

Temperature Selection:

 Press the MODE/+ key to select °F (Fahrenheit) or °C (Celsius). Press 

the SET key. 

The programming mode is complete.

 

 
Alarm Setting Mode 

 
1)  Press the ALM1 or ALM2 key for two seconds to enter the Alarm 1 or Alarm 2 setting mode. 
2)  Press the ALM1/HOUR key to set the alarm hour. 
3)  Press the ALM2/MIN key to set the alarm minute. 
4)  Exit this mode by pressing the SNOOZE bar or waiting for 15 seconds. 
 
Alarm is activated when ((1)) or ((2)) is displayed to the right of the map. To activate/deactivate an 
alarm, press the ALM1 or ALM2 key briefly. 
 

Display Modes 

 
Your alarm clock can be set to display (underneath the US map) either the seconds, calendar, alarm 1 
time, alarm 2 time or indoor temperature. 
1)  Press the MODE/+ key to change the display function. 
2)  The display will toggle through the options. 
 

General Information on WWVB Radio Controlled Time 

 

The NIST radio station, WWVB, 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 your alarm clock. However, due to the nature of the Earth’s 
Ionosphere, reception is very limited during daylight hours. Your alarm clock will search for a signal 
every night when reception is best. The WWVB radio station derives its signal from the NIST Atomic 
clock in Boulder, Colorado. A team of atomic physicists continually measures every second of every 
day to an accuracy of ten billionths of a second a 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. This 
atomic clock regulates the WWVB transmitter. Your Radio Controlled Alarm Clock cannot receive 
signals from other transmitters in the world (Germany’s DCF 77, Japan’s JG2AS, or England’s MSF-
60). Outside the United Sates, the alarm clock will keep time as a precision quartz clock. 
 

Troubleshooting 

 

 

4

Summary of Contents for WT-2150A

Page 1: ...RADIO CONTROLLED ANALOG CLOCK WT 2150 Instruction manual Mexico United States Canada Eastern Time 5h GMT Central Time 6h GMT Mountain Time 7h GMT Pacific Time 8h GMT 1...

Page 2: ...g option Daylight savings time ON OFF option Low battery indicator Starting up the Alarm Clock The alarm clock uses 1 x AA LR6 battery Alkaline recommended Snooze button Function Keys Battery Cover 1...

Page 3: ...minute while in alarm set mode SNOOZE While alarm is sounding turns off alarm for set time or off if set to 0 Turns on back light for LCD automatic turnoff Programming Mode 1 Press the SET key to ente...

Page 4: ...ayed to the right of the map To activate deactivate an alarm press the ALM1 or ALM2 key briefly Display Modes Your alarm clock can be set to display underneath the US map either the seconds calendar a...

Page 5: ...arm clock synchronize with the WWVB A The Alarm Clock searches for a signal immediately after inserting a battery After an initial signal is received the alarm searches for a signal starting at 12 00...

Page 6: ...range 21 8 F to 155 9 F 29 9 C to 68 8 C Temperature resolution 0 2 F 0 1 C Temperature checking interval Every 10 seconds Power source 1 x AA IEC LR6 1 5V Alkaline Battery life cycle Approximately 1...

Page 7: ...quential 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...

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