Introducció i mésview
The MARATHON Slim Jumbo Panoramic Atomic Wall Clock is designed for precise timekeeping and environmental monitoring. This self-setting and self-adjusting clock automatically synchronizes to the correct time using radio frequencies broadcast from NIST’s Colorado Atomic Clock, ensuring accuracy within North America. Its large, easy-to-read LCD display provides clear visibility from broad distances, making it suitable for various indoor environments. The clock offers multiple display modes, including time (AM/PM or 24-hour format), date (month, weekday, and date), and indoor temperature (Celsius or Fahrenheit). It also supports eight North American time zones and includes a Daylight Saving Time on/off option for convenience.

Figura 1: Frontal view of the MARATHON Slim Jumbo Panoramic Atomic Wall Clock, displaying the time, temperature, and date clearly on its large digital screen.
Informació de seguretat
- Seguretat de la bateria: Use only the specified type and number of batteries. Do not mix old and new batteries, or different types of batteries. Ensure batteries are inserted with correct polarity (+/-). Remove exhausted batteries promptly to prevent leakage and damage. If the clock will not be used for an extended period, remove the batteries.
- Col·locació: Avoid placing the clock in direct sunlight, near heat sources, or in areas with extreme temperatures or high humidity, as this may affect performance and battery life.
- Neteja: Use a soft, dry cloth for cleaning. Do not use abrasive cleaners, solvents, or chemical agents, which may damage the display or casing.
- Manipulació: Handle the clock with care. Avoid dropping or subjecting it to strong impacts, which could damage internal components.
Contingut del paquet
En obrir el paquet, comproveu que tots els elements hi siguin presents i que estiguin en bon estat:
- MARATHON Slim Jumbo Panoramic Atomic Wall Clock (CL030033JUMBO)
- AA Batteries (Quantity: 4, as per user reviews for optimal performance, though some listings may state 2)
- Manual d'instruccions (aquest document)

Figure 2: The product packaging, indicating the clock and included batteries.
Configuració
- Instal·lació de la bateria: Locate the battery compartment on the back of the clock. Insert four (4) AA batteries, ensuring correct polarity.
- Sincronització inicial: Once batteries are inserted, the clock will automatically begin searching for the NIST (National Institute of Standards and Technology) atomic clock radio signal. This signal is broadcast from Fort Collins, Colorado, and is available throughout North America. The synchronization process may take several minutes to several hours, depending on your location and signal strength.
- Recepció del senyal: For optimal signal reception, place the clock near a window and away from large metal objects or electronic devices that may cause interference. The clock will attempt to synchronize daily, typically in the early morning hours.

Figure 3: Visual representation of the self-setting feature, indicating automatic time synchronization upon battery insertion.
Instruccions de funcionament
The clock features several buttons on the back for manual adjustments and mode selection. Refer to the labels next to each button for their specific functions.
- Selecció de la zona horària: Use the dedicated Time Zone button to cycle through the eight North American time zones: Pacific, Mountain, Central, Eastern, Atlantic, Newfoundland, Alaska, and Hawaii.
- Display Mode Toggle: A button allows you to switch between the three main display modes:
- Time (AM/PM or 24-hour format)
- Date (Month, Weekday, Date)
- Indoor Temperature (Celsius or Fahrenheit)
- Horari d'estiu (DST): A dedicated switch or button allows you to manually enable or disable the Daylight Saving Time adjustment. Ensure this is set correctly for your region.

Figura 4: posterior view of the clock, highlighting the control buttons for various settings and modes.
Modes de visualització
The clock's dynamic display can be configured to show different information based on user preference:
- Visualització de l'hora: Choose between a 12-hour (AM/PM) or 24-hour format for the main time display.
- Visualització de la data: View the current month, weekday, and date.
- Visualització de la temperatura: Monitor the indoor room temperature, selectable between Celsius (°C) and Fahrenheit (°F).

Figura 5: Detall view of the clock's LCD, illustrating the simultaneous display of time, temperature, and date.
Configuració de la zona horària
The clock supports the following eight North American time zones:
- Hora estàndard del Pacífic (PST)
- Hora estàndard de muntanya (MST)
- Hora estàndard central (CST)
- Hora estàndard de l'est (EST)
- Atlantic Standard Time (AST)
- Newfoundland Standard Time (NST)
- Alaska Standard Time (AKST)
- Hora estàndard de Hawaii (HST)
Select the appropriate time zone for your location using the dedicated button on the back of the clock.
Manteniment
- Substitució de la bateria: When the display dims or becomes erratic, it is time to replace the batteries. Open the battery compartment on the back and replace all four (4) AA batteries with new ones. Dispose of old batteries responsibly according to local regulations.
- Neteja: Per netejar el rellotge, netegeu suaument la pantalla iasing with a soft, lint-free cloth. For stubborn marks, slightly dampRenta el drap amb aigua. Evita utilitzar productes químics agressius o materials abrasius.
- Emmagatzematge: If storing the clock for an extended period, remove the batteries to prevent potential leakage and corrosion. Store in a cool, dry place.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Clock not synchronizing or displaying incorrect time. | Weak atomic signal, interference, or incorrect time zone setting. |
|
| La pantalla està tènue o en blanc. | Bateries baixes o esgotades. | Replace all four (4) AA batteries with new ones. |
| La lectura de temperatura és inexacta. | Clock placed near a heat source, vent, or in direct sunlight. | Move the clock to a location with stable ambient temperature, away from direct heat or cold sources. |
Especificacions
| Característica | Detall |
|---|---|
| Marca | MARATHON |
| Model | CL030033JUMBO |
| Color | Gris Grafit |
| Tipus de visualització | Digital |
| Característica especial | Atomic (Self-setting, Self-adjusting) |
| Dimensions del producte | 16.97"W x 6"H (43.1 cm W x 15.24 cm H for digits) |
| Font d'alimentació | Funciona amb bateria |
| Nombre de bateries | 4 AA batteries (user reported, listing states 2 AA) |
| Tipus de muntatge | Wall Mount / Tabletop (with fold-out stand) |
| Material | Plastic, Alloy Steel (Frame) |
| Ús interior/exterior | Interior |
| Pes de l'article | 2.22 lliures (1.01 quilograms) |
| UPC | 063442321553 |

Figure 6: Dimensional diagram of the clock, indicating its width, height, and digit size for clear understanding of its physical attributes.
Garantia i Suport
The MARATHON Slim Jumbo Panoramic Atomic Wall Clock comes with a Limited Warranty. For detailed information regarding warranty coverage, claims, or technical support, please refer to the official MARATHON website or contact their customer service department directly. Contact information can typically be found on the product packaging or the manufacturer's official weblloc.
Per a més ajuda, podeu visitar el MARATHON Store on Amazon.





