ATOMIC DIGITAL WALL CLOCK

Ref.: LDC542

Package Contents

Item No Part Name Figure Quantity
1 ATOMIC DIGITAL WALL CLOCK [Image of Atomic Digital Wall Clock showing time 12:08, temperature 70.5°F, date 8/19 FRI, and humidity 65%] 1
2 USER MANUAL [Image of the User Manual cover] 1

1 Wall Clock Unit

The wall clock unit features a large LCD display and buttons on the rear for operation.

Display Elements:

  • 1. Time display (e.g., 12:08 PM)
  • 2. Atomic clock indicator ?
  • 3. DST (Daylight Savings Time) indicator ☀️
  • 4. Alarm indicator ⏰
  • 5. Temperature reading (e.g., 70.5°F)
  • 6. Calendar with month, date, and day display (e.g., 8/19 FRI)
  • 7. Humidity reading (e.g., 65%)

Rear View / Buttons:

  • 8. Battery door (compartment for 2 x AA batteries)
  • 9. SET button
  • 10. ALARM button
  • 11. ▲ button
  • 12. ▼/°C/°F button
  • 13. WAVE button

2 Main Features

  • Large LCD display.
  • 5 functional buttons: SET, ALARM, ▲, ▼/°C/°F, WAVE.
  • Self-setting accurate atomic time function.
  • Time display: Hour, minute.
  • Calendar display: Month, date, and weekday.
  • Supports 8 time zones: EST, CST, MST, PST, AKT, HST, AST, NST.
  • Alarm with snooze function.
  • Displays temperature/humidity readings.
  • Low battery indication ?.

3 First Time to Use

  1. Insert 2 new "AA" batteries into the wall clock. The clock will automatically attempt to receive the atomic clock signal, and the tower icon ? will be flashing.
  2. When the wall clock detects the atomic clock signal, the signal strength indicator will animate.
  3. Place the wall clock away from interference sources such as electronic devices (TV, computer, microwave, radio, etc.).
  4. Once the signal is received successfully, the time and date will be updated, and the Atomic Time tower icon ? will become solid.

[Example display showing indoor temperature 70.5°F, date 1/1 SAT, and outdoor temperature 84.5°F]

4 Atomic Clock Reception

The wall clock automatically searches for the WWVB signal and updates the time daily at 1:00 am, 2:00 am, 3:00 am, 4:00 am, and 5:00 am.

The Atomic Time tower icon ? will flash while searching and will be solid when connected.

Note: To maximize atomic signal reception, place the clock away from large metallic items, thick walls, metal surfaces, or other objects that may limit radio communication.

4.1 Manual RCC Reception

You can initiate atomic clock signal reception manually. In Normal time display, press and hold the 13 [WAVE] button for over 3 seconds. The tower icon ? will flash, and manual reception will begin. Upon successful reception, the time and date will update.

To exit atomic clock reception during the process, press and release the 13 [WAVE] key for over 3 seconds.

For information about WWVB, visit www.nist.gov/pml/div688/grp40/wwvb.cfm.

5 Time Setting

In Normal time display, press and hold the 9 [SET] button for over 3 seconds to enter setting mode. Use the 11 [▲] and 12 [▼/°C/°F] buttons to adjust values. Hold the buttons to adjust quickly. Press and release the 9 [SET] button to confirm and move to the next item.

5.1 Setting Order

  1. RCC On/Off
  2. Time Zone
  3. DST On/Off
  4. Year
  5. Month
  6. Day
  7. 12/24 Hour Format
  8. Hour
  9. Minute
  10. End of Setting

Step 1: Press and hold the 9 [SET] button to enter settings. "RCC ON" will flash. Use 11 [▲] and 12 [▼/°C/°F] to set RCC on/off. Press 9 [SET] to select Time Zone.

Note: If RCC OFF is selected, you will skip Time Zone and DST settings and proceed to year setting.

Step 2: When the Time Zone icon (e.g., EST) flashes, press 11 [▲] or 12 [▼/°C/°F] to select a different time zone (EST=Eastern, CST=Central, MST=Mountain, PST=Pacific, AKT=Alaska, HST=Hawaii, AST=Atlantic, NST=Newfoundland). Press 9 [SET] to select DST on/off.

Step 3: When "DST ON" flashes, press 11 [▲] or 12 [▼/°C/°F] to select DST on/off. Press 9 [SET] to select Year.

Step 4: When the Year flashes, press 11 [▲] or 12 [▼/°C/°F] to adjust the year. Press 9 [SET] to select Month.

Step 5: When the Month flashes, press 11 [▲] or 12 [▼/°C/°F] to adjust the month. Press 9 [SET] to select Date.

Step 6: When the Date flashes, press 11 [▲] or 12 [▼/°C/°F] to adjust the date. Press 9 [SET] to select 12/24 hour format.

Step 7: When "12 Hr" flashes, press 11 [▲] or 12 [▼/°C/°F] to adjust the 12/24 hour format. Press 9 [SET] to select Hour.

Step 8: When the Hour flashes, press 11 [▲] or 12 [▼/°C/°F] to adjust the hours. Press 9 [SET] to select Minute.

Step 9: When the Minute flashes, press 11 [▲] or 12 [▼/°C/°F] to adjust the minutes. Press 9 [SET] to save all settings and exit.

[Visual representation of the setting progression: RCC On/Off display, Time Zone display, DST On/Off display, Day display, Month display, Year display, 12/24 Hour Format display, Hour display, Minute display, End of Setting display]

6 Alarm Clocks

6.1 Check Alarm Time

In Normal time mode, press the 10 [Alarm] button to toggle between displaying Alarm 1 and Alarm 2 times.

[Visual representation of Alarm 1 time 6:00, Alarm 2 time 7:00, and Normal Time 12:01 displays]

6.2 Setting the Daily Alarms

Press and hold the 10 [Alarm] button for over 2 seconds to enter alarm setting mode. Use 11 [▲] and 12 [▼/°C/°F] to adjust values. Hold to adjust quickly. Press and release the 10 [Alarm] button to confirm and move to the next item.

  • Press and hold 10 [Alarm] for over 2 seconds to enter alarm setting mode. The Hour of Alarm 1 will flash. Press 11 [▲] or 12 [▼/°C/°F] to set the required alarm 1 hours. Press 10 [Alarm] to select the Minute of Alarm 1.
  • When the Minute of Alarm 1 flashes, press 11 [▲] or 12 [▼/°C/°F] to set the required alarm 1 minutes. Press 10 [Alarm] to select the Hour of Alarm 2.
  • When the Hour of Alarm 2 flashes, press 11 [▲] or 12 [▼/°C/°F] to set the required alarm 2 hours. Press 10 [Alarm] to select the Minute of Alarm 2.
  • When the Minute of Alarm 2 flashes, press 11 [▲] or 12 [▼/°C/°F] to set the required alarm 2 minutes.

Press 10 [Alarm] to save all settings and exit.

Note: If there is no operation within 20 seconds, the clock will automatically return to normal time display mode.

[Visual representation of Alarm 1 set to 6:00, Alarm 2 set to 7:00, and Normal Time 12:01 displays]

6.3 Deactivate/Activate Alarm

  • In Normal time mode, press 11 [▲] to select Alarm 1 and Alarm 2 ON or OFF.
  • If an alarm is on, its corresponding alarm icon (⏰) will be shown on the display.
  • Alarm 1 icon ⏰ shown on display means Alarm 1 is turned on.
  • Alarm 2 icon ⏰ shown on display means Alarm 2 is turned on.
  • Alarm 1 ⏰ and Alarm 2 ⏰ icons shown on display mean both alarms are turned on.

6.4 Switching Off the Alarm Signal

When the alarm is ringing, press any button except 9 [SET] to stop the alarm signal. The alarm will ring again at the same time the next day.

6.5 Snooze Function

  • When the alarm rings, press 9 [SET] button to pause the alarm. The snooze indicator icon ? will keep flashing.
  • The alarm will resume after 5 minutes.

7 Low Battery Indication

When the low battery indicator ? is shown on the display, please replace the batteries for your clock.

8 Switch Temperature Unit

In Normal time display, press and release the 12 [▼/°C/°F] button to interchange the temperature unit between degrees Celsius (°C) and degrees Fahrenheit (°F).

9 Use the Wall Mount

  • The wall clock has a table top stand and a wall mounting structure.
  • For wall mounting, use the recessed hole/holes on the back of the clock. For table top use, pull out the back-stand.

10 Specifications

Category Details
Indoor Temperature Range: 32.0°F to 122.0°F (0.0°C to 50.0°C)
Humidity Range: 20% to 95%
Power Wall clock: 2 x AA 1.5V, alkaline batteries
Dimension Wall clock: 8.5 x 6.28 x 1.02 inches

11 FCC Statement

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

  1. This device may NOT cause harmful interference.
  2. This device must accept any interference received, including interference that may cause undesired operation.

NOTE:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If the equipment does not cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and the receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

WARNING:

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

Models: LDC542 Atomic Digital Wall Clock, LDC542, Atomic Digital Wall Clock, Digital Wall Clock, Wall Clock, Clock

File Info : application/pdf, 12 Pages, 5.69MB

PDF preview unavailable. Download the PDF instead.

C1DNh36sB9L

References

Adobe PDF library 15.00 Adobe Illustrator CC 22.1 (Windows)

Related Documents

Preview LFF Atomic Digital Wall Clock with Outdoor Temperature User Manual (LDC076)
User manual for the LFF LDC076 Atomic Digital Wall Clock. Learn about its features, setup, time setting, alarm functions, specifications, and placement guidelines.
Preview LFF LWS181 Wireless Weather Station User Manual
User manual for the LFF LWS181 Wireless Weather Station, detailing its features, setup, operation, and specifications for indoor and outdoor temperature, humidity, and barometric pressure monitoring.
Preview LFF LWS125 Wireless Weather Station User Manual
Comprehensive user manual for the LFF LWS125 Wireless Weather Station, detailing setup, features, operation, and specifications for accurate indoor and outdoor environmental monitoring.
Preview LFF LWS200 Wireless Color Weather Station User Manual
User manual for the LFF LWS200 Wireless Color Weather Station, covering setup, features, operation, and maintenance.
Preview LFF LWS163 Wireless Weather Station User Manual
Comprehensive user manual for the LFF LWS163 Wireless Weather Station, detailing setup, features, operation, safety instructions, and specifications for indoor and outdoor temperature, humidity, and barometric pressure monitoring.