1. Uvod
Thank you for choosing the Marathon CL030025WH Commercial Grade Jumbo Atomic Wall Clock. This clock is designed for clear visibility and precise timekeeping, automatically synchronizing with the NIST atomic clock signal. It features a large LCD display, indoor temperature, and date, making it suitable for various indoor environments.

Slika 1.1: Prednja strana view of the Marathon CL030025WH Jumbo Atomic Wall Clock.
2. Sigurnosne informacije
- Ovaj uređaj je namijenjen samo za upotrebu u zatvorenom prostoru.
- Ne izlažite sat ekstremnim temperaturama, direktnoj sunčevoj svjetlosti ili visokoj vlažnosti.
- Use only the specified battery type (3 C batteries). Ensure correct polarity when inserting batteries.
- Remove depleted batteries promptly to prevent leakage and damage.
- Držite baterije van domašaja dece.
3. Sadržaj paketa
Provjerite da li su sve stavke prisutne u paketu:
- Marathon CL030025WH Jumbo Atomic Wall Clock
- 3 x C baterije
- Korisnički priručnik (ovaj dokument)
4. Proizvod je gotovview
The Marathon CL030025WH clock features a large, easy-to-read LCD display and intuitive controls. Below are key components and their functions.
4.1 Prednji ekran

Image 4.1: Front display showing time, date, and temperature.
- Prikaz vremena: Large digits for hours, minutes, and seconds. Includes AM/PM indicator.
- Prikaz datuma: Month, day, and day of the week.
- Unutrašnja temperatura: Displays current indoor temperature in Celsius or Fahrenheit.
- Indikator atomskog signala: Shows status of atomic time synchronization.
- Time Zone Indicator: Displays the currently selected time zone.
- Daylight Saving Time (DST) Indicator: Shows if DST is active.
4.2 Kontrole na zadnjoj ploči

Image 4.2: Rear panel with control buttons and mounting options.
- Time Zone Switch: Selects one of the 6 available time zones (AST, CST, EST, MST, NST, PST).
- DST ON/OFF Switch: Enables or disables Daylight Saving Time adjustment.
- Prekidač jedinice temperature: Toggles between Celsius and Fahrenheit.
- Manual Set Buttons: For manual adjustment of time and date if atomic signal is unavailable.
- Keyhole Mount: Za zidnu montažu.
- Built-in Table Stand: For desktop placement.
5. Podešavanje
5.1 Instalacija baterije
- Otvorite poklopac pretinca za baterije na stražnjoj strani sata.
- Insert 3 C batteries, ensuring correct polarity (+ and -).
- Zatvorite poklopac odeljka za baterije.
5.2 Initial Synchronization and Settings
Upon battery installation, the clock will automatically attempt to synchronize with the NIST atomic clock signal. This process may take several minutes to several hours, depending on your location and signal strength. The atomic feature only functions in North America.
- Odabir vremenske zone: Use the Time Zone switch on the back of the clock to select your local time zone (AST, CST, EST, MST, NST, PST).
- Ljetno računanje vremena (DST): Set the DST switch to ON or OFF according to your region's DST observance.
- Jedinica temperature: Select Celsius or Fahrenheit using the dedicated switch.
- plasman: Za optimalan prijem signala, postavite sat blizu prozora i dalje od elektronskih uređaja koji mogu uzrokovati smetnje.
5.3 Opcije montaže
Sat se može montirati na zid ili postaviti na ravnu površinu pomoću ugrađenog postolja.
- Zidni nosač: Use the keyhole slot on the back of the clock to hang it securely on a screw or nail.
- Stalak za sto: Extend the built-in stand from the back of the clock for desktop or shelf placement.

Image 5.1: Clock mounted on an office wall.
5.4 Video vodič za podešavanje
For a visual guide on setting up your Marathon Atomic Wall Clock, please watch the video below:
Video 5.1: MARATHON CL030025 Commercial Grade Jumbo Atomic Wall Clock with 6 Time Zones, Indoor Temp. & Date. This video demonstrates the automatic synchronization feature and general setup of the clock.
6. Upravljanje satom
6.1 Automatic Time Synchronization
The clock automatically receives the atomic time signal from NIST's Colorado Atomic Clock. This ensures accurate timekeeping without manual adjustment. The signal icon on the display indicates reception status.
- A solid signal icon indicates successful synchronization.
- A flashing icon indicates the clock is attempting to receive the signal.
6.2 Manual Time and Date Adjustment
In areas where the atomic signal is weak or unavailable, you can manually set the time and date.
- Locate the manual set buttons on the rear panel.
- Press the 'SET' button to enter setting mode.
- Use the '+' or '-' buttons to adjust the flashing value (e.g., hour, minute, year, month, day).
- Press 'SET' again to confirm and move to the next setting.
- Exit setting mode by not pressing any button for a few seconds, or by cycling through all settings.
6.3 Načini prikaza
- Format 12/24 sata: The clock supports both 12-hour (with AM/PM) and 24-hour time displays. This setting can typically be toggled via a button on the rear panel or during manual setup.
- Prikaz temperature: Switch between Celsius (°C) and Fahrenheit (°F) using the dedicated switch on the back.
7. Održavanje
7.1 Čišćenje
To clean the clock, use a soft, dry cloth. Do not use abrasive cleaners or solvents, as these may damage the display or casing.
7.2 Zamjena baterije
The clock features a low battery indicator. When this indicator appears, replace all 3 C batteries with new ones to ensure continued accurate operation.
8. Otkrivanje problema
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Clock not synchronizing with atomic signal. | Weak signal due to location, interference, or distance from transmitter. | Relocate the clock near a window or in a different room. Ensure it is away from electronic devices (TVs, computers, microwaves). Allow up to 24 hours for synchronization. |
| Prikazano je netačno vrijeme ili datum. | Incorrect time zone setting, DST setting, or failed atomic synchronization. | Verify time zone and DST settings. If atomic sync fails, manually set the time and date. |
| Ekran je taman ili prazan. | Slabe ili ispražnjene baterije. | Replace all 3 C batteries with new ones. |
| Očitavanje temperature izgleda netačno. | Clock exposed to direct sunlight or heat source. | Premjestite sat na mjesto sa stabilnom temperaturom okoline. |
9. Specifikacije
| Feature | Detalj |
|---|---|
| Broj modela | CL030025WH |
| Brand | MARATON |
| Display Type | Digitalni LCD |
| Dimenzije | 40.64 cm Š x 27.94 cm V |
| Izvor napajanja | 3 x C Batteries (Included) |
| Način rada | Atomic (North America only) |
| Vremenske zone | 6 (AST, CST, EST, MST, NST, PST) |
| Prikaz temperature | Indoor, Celsius/Fahrenheit |
| Vrsta montaže | Zidni nosač, Stolni stalak |
| Materijal | Plastika |
| Težina artikla | 2.54 funte (1152 grama) |

Image 9.1: Detailed dimensions of the clock.
10. Informacije o garanciji
The Marathon CL030025WH Jumbo Atomic Wall Clock comes with a 2-year warranty from the date of purchase. This warranty covers manufacturing defects and workmanship. It does not cover damage caused by misuse, accidents, unauthorized repairs, or normal wear and tear. Please retain your proof of purchase for warranty claims.
11. Korisnička podrška
If you encounter any issues not covered in this manual or require further assistance, please contact Marathon customer support. Refer to the product packaging or the official Marathon webstranicu za najnovije kontakt informacije.





