La Crosse Technology WT-8005U Abmessungen
La Crosse Technology, Ltd Page 1
WT-8005U FAQS
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CONTENTS
WT-8005U FAQS.................................................................................................................. 1
Batteries ................................................................................................................................ 1
Digital Clock Factory Restart.......................................................................................... 2
Fahrenheit/Celsius............................................................................................................. 2
12-Hour or 24-Hour Time Format ............................................................................. 2
Supported Time Zones .................................................................................................. 2
Dashes, OFL or Stuck Indoor Temperature.................................................................... 2
Does the clock have a backlight?..................................................................................... 2
Time is off by hours............................................................................................................ 3
Daylight Saving Time ......................................................................................................... 3
Manually Set Time/Date: Program Menu........................................................................ 3
No WWVB Tower Icon ........................................................................................................ 4
Set Time Alarm ................................................................................................................... 4
Activate/Deactivate Time Alarm....................................................................................... 4
Snooze Alarm ...................................................................................................................... 4
Digital clock has distorted or frozen display .................................................................. 5
Digital clock is blank: No letters, numbers or dashed lines ........................................ 5
Day of the week is incorrect............................................................................................. 5
Digital clock drains batteries quickly............................................................................... 5
Digital clock has missing segments................................................................................. 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 name brand Alkaline batteries for indoor displays.
A minimum voltage of 1.48V for each battery is necessary for proper
performance.
La Crosse Technology, Ltd Page 2
Use batteries 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.
Digital Clock Factory Restart
Explanation: The factory restart returns the digital clock to an “out-of-the-box”
state and often resolves an issue.
Factory Restart:
1. Remove all batteries from the digital clock.
2. Press one of the buttons on the digital clock at least 20 times to clear all
memory.
3. Verify that the digital clock is blank before proceeding (some lines are painted
on and will not disappear).
4. Leave without power for 15 minutes (very important).
5. Insert fresh Alkaline batteries into the digital clock.
6. Do not press buttons for 15 minutes.
Fahrenheit/Celsius
Press the ºF/ºC button to switch from Fahrenheit to Celsius.
12-Hour or 24-Hour Time Format
Display the time in 12-hour or 24-hour format
Default is 12-hour time
Use the Program Menu to switch time formats
Supported Time Zones
This clock has 4 Time Zones: E=Eastern, C=Central, M=Mountain & P= Pacific
The digital clock works in North America.
Outside of North America, the digital clock will not receive a WWVB signal, but
will keep time like a quartz clock.
Dashes, OFL or Stuck Indoor Temperature
Explanation: These symbols are error messages indication the indoor sensor is
outside of its readable range. For indoor readings, this is generally a power related
issue.
This is generally a power related issue.
Batteries may be overpowered or underpowered. Remove batteries from atomic
digital clock.
Press any button 20 times. Leave the digital clock unpowered for 1-2 hours.
Insert fresh alkaline batteries with correct polarity.
If the indoor temperature is still dashes or OFL, the digital clock may need
replacement.
Does the clock have a backlight?
No, as this clock is battery operated there is no backlight.
La Crosse Technology, Ltd Page 3
Time is off by hours
Check to see if the WWVB Tower icon appears on the atomic digital clock. If not,
the digital clock has not received a WWVB time signal in the past 24 hours.
Reposition the digital clock with the front or back facing Colorado.
Check that the Time Zone selected correctly reflects your location. Adjust the
time zone in the Program Menu.
Check that the DST indicator is correct for your location (most areas observe
DST so this should be ON). Adjust the DST indicator in the Program Menu.
Large buildings, metal roofed buildings and buildings or rooms full of electrical
and/or radio equipment make it difficult to receive the WWVB time signal.
Daylight Saving Time
Dependent on your location, position of the clock in your home, and atmospheric
interference, it may take up to 5 nights for the change from Daylight Savings
Time to Standard Time and vice-versa to occur.
Check for a WWVB Tower Icon showing on the atomic digital clock. The tower
icon indicates you have received the WWVB signal from Ft Collins CO in the past
24 hours.
Check that the clock is in the correct Time Zone.
Check whether the DST indicator is ON or OFF. If the indicator is OFF the clock
will not change.
Check for fresh batteries. Without proper batteries, the antenna will have a
harder time picking up the signal.
Position the digital 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 near an outside wall and point the unit in this
general direction.
Manually Set Time/Date: Program Menu
1. Press the SET button to enter time set mode, confirm adjustments and move to
next item.
2. Press the ▲or ▼buttons to adjust values.
3. Exit the programming mode at any time by pressing the SNZ button.
12/24-HOUR TIME MODE: Either 12or 24 will flash on the display. Use up or
down arrow to change from 12 to 24 hour format time (12 for AM/PM, 24 for
military time). Press and release the SET button once.
HOUR: The Hour will be flashing. Use the up or down arrow to set the
hour. If using 12-hour Time Mode, be sure to set the hour for am or
pm. Press and release the SET button once.
MINUTES: The Minutes will be flashing. Use the up or down arrow to set the
minutes. Press and release the SET Button once.
YEAR: The Year will flash (09). Use the up or down arrow to set the
year. Press and release the SET button once.
MONTH: The Month will be flashing. Use the up or down arrow to set the
month. Press and release the SET button once.
DATE: The numeric day will be flashing. Use the up or down arrow to set
the date correctly.
La Crosse Technology, Ltd Page 4
Note: Day of week will automatically set. Press and release the SET Button
once.
DAYLIGHT SAVING TIME: DST will show with either ON or OF
flashing. Most states use DST, so this should be set to ON. However if the
location does not use DST, use the up or down arrow to turn it OF. Press
and release the SET button once
OTHER SETTINGS:
TIME ZONE SETTING: From normal display mode, simply press and release the
ZONE/up arrow button to change the Time Zone from Pacific, Mountain, Central
and Eastern. The unit will see the letter P, M, C or E showing above the
seconds.
Note: This clock only has four time zones. Default is Pacific Time Zone.
FAHRENHEIT OR CELSIUS: From normal display mode, simply press and release
the F/C/down arrow button to change from Fahrenheit to Celsius.
WWVB SEARCH: When the batteries are inserted or the WWVB Search button Is
pressed, the clock will search for the WWVB signal for 7 minutes. If it does not
find a signal, the tower icon will stop flashing and search again on the hour.
Note: When the clock is searching for WWVB, signal the unit will not be able to
use the other program buttons. The unit can turn off the search by pressing the
WWVB search button one time.
No WWVB Tower Icon
The digital clock has not received a WWVB time signal in the past 24 hours.
Position the digital clock for better reception.
Hold the -button to send the Digital clock on a WWVB signal search at night.
Allow up to 5 nights to receive the time signal.
Set Time Alarm
HOUR: Press and hold down the ALARM button for 2 seconds until the Hours
flash. Use the up or down arrow buttons to set the Hour. Press ALARM button to
confirm the setting
MINUTES: The Minute display of the Alarm time starts to flash. Use the up or
down arrow to set the required minute. Press ALARM button to confirm the
setting and to end the setting procedure.
Activate/Deactivate Time Alarm
Press and release the ALARM button to activate or deactivate the alarm.
With the Alarm time showing, press and release the ALARM button to activate
the alarm.
The alarm icon (bell) appears when alarm is active.
The alarm icon will disappear when alarm is inactive.
Note: When the alarm sounds, it will continue for two minutes then shut off.
Snooze Alarm
When the alarm sounds, press the SNOOZE button to trigger snooze alarm for 5
minutes.
La Crosse Technology, Ltd Page 5
This crescendo alarm will sound for 120 seconds if not deactivated. Press any
button to stop the alarm for 24 hours.
Digital clock has distorted or frozen display
Explanation: On a brand new digital clock, check for thin plastic film of printed
scratch guard that may be on the screen of the digital clock. This thin piece of
plastic has printed numbers for store displays. When the batteries are installed, the
“real” numbers show behind the printed scratch guard and create distortion.
With all power removed, the digital clock should be blank.
If numbers still appear, please check for scratch guard.
Power:
Check that the batteries are installed correctly.
This is generally a power related issue.
Batteries may be overpowered or underpowered.
Remove batteries from digital clock.
Press any button 20 times. Leave the batteries out of the display for 2 hours.
Insert batteries into the digital clock.
Digital clock is blank: No letters, numbers or dashed lines
Check that the batteries are installed correctly.
Batteries may be overpowered or underpowered.
Remove batteries from digital clock.
Press any button 20 times. Leave the batteries out of the display for 2 hours.
Insert batteries into the digital clock.
Day of the week is incorrect.
Check the year setting in the program menu. The day of the week sets
automatically based on the setting of the year, month and date.
Digital clock drains batteries quickly
Test a new set of alkaline batteries. Write down the date of installation and the
voltage of the batteries.
When the batteries fail, please note the date and voltage again. This is helpful in
determining the problem.
Check for leaking batteries, which may damage the digital clock.
Digital clock has missing segments
Explanation: When parts of numbers, letters, or pictures are missing on the
display, it is often power related.
With all power removed, the digital clock should be blank.
If numbers still appear, please check for scratch guard.
Power:
Check that the batteries are installed correctly.
This is generally a power related issue.
Batteries may be overpowered or underpowered.
Remove batteries from digital clock.
Press any button 20 times. Leave the batteries out of the display for 2 hours.
Insert batteries into the digital clock.
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