La Crosse Technology 617-1280 Instruction Manual

Model: 617-1280 www.lacrossetechnology.com/support Page | 1

Model: 617-1280

Instruction Manual

DC: 060215

ATOMIC ALARM CLOCK

WITH INDOOR TEMPERATURE AND MOON PHASE

Clock Battery

Compartment

2 “AAA”

FRONT

VIEW

Time, Alarm, Time Zone, Moon Phase

BACK

VIEW

Month, Date, Weekday & Indoor Temperature

Model: 617-1280 www.lacrossetechnology.com/support Page | 2

Get Started

Step 1: Insert 2 new “AAA” Alkaline batteries (not included) into the digital clock.

Observe the correct polarity.

Restart: If 12:00 is not displayed after 60 seconds, remove batteries from the
alarm clock and press any button 20 times. After 15 minutes, return to Step 1.

IMPORTANT: The clock will look for the WWVB time signal for 8 minutes when

batteries are first installed. Buttons will not function during this search period.
 Press the WAVE button once to stop the WWVB signal search and

manually set the time and time zone (UP button).

 The clock will search for the WWVB time signal again after midnight.
 For information about WWVB, visit:

www.nist.gov/pml/div688/grp40/wwvb.cfm

Set Time & Date

1. Hold the SET button to enter time set mode.

2. Press the UP or DOWN buttons to adjust values.

3. Press the SET button to confirm adjustments and move to the next
item.

Settings order:

1. 12/24 hour format, 2. Hour, 3. Minute, 4. Year, 5. Month, 7. Date,

8. DST Indicator

Press the SET button to exit, or wait 20 seconds without pressing buttons to

return to the time display.

Time Zone

 There are four time zones (Pacific, Mountain, Central, and

Eastern).

 Press the UP button to select your time zone.
 The selected time zone will be filled in on the USA map.

Note: The Time Zone cannot be set while the clock is searching for the
WWVB time signal.

Fahrenheit/Celsius

 Press the DOWN button to select Fahrenheit or Celsius

temperature display.

Set Time Alarm

1. Hold the ALARM button to enter alarm time set mode. The letters
“AL” will appear in place of the seconds.

2. Press the UP or DOWN buttons to adjust values.

3. Press the ALARM button to confirm adjustments and move to the
next item.

Alarm Time setting order: 1. Hours, 2. Minutes