MARATHON Atomic Wall Clock User Manual

Introduction

This manual provides instructions for the setup, operation, and maintenance of your MARATHON Atomic Wall Clock. This clock is designed for accurate timekeeping, automatically synchronizing with the NIST atomic clock signal. It features a large display, multiple time zones, indoor temperature, and calendar functions.

Image: Front view of the MARATHON Atomic Wall Clock, displaying time, date, day, temperature, and signal strength.

Package Contents

Please check the package contents to ensure all items are present:

• MARATHON Atomic Wall Clock (Model CL030033-CW-00-NA)
• 2 x AA Batteries
• Instruction Manual (this document)

Setup

Follow these steps to set up your atomic wall clock:

1. Install Batteries: Open the battery compartment on the back of the clock. Insert the two AA batteries, ensuring correct polarity (+ and -). The clock will power on and begin searching for the atomic signal.
2. Initial Synchronization: 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. For best reception, place the clock near a window, away from electronic devices that may cause interference.
3. Select Time Zone: Once the time is set, use the TIME ZONE button on the back of the clock to select your local time zone. The clock supports Pacific, Mountain, Central, Eastern, Atlantic, Newfoundland, Alaska, and Hawaii standard times.
4. Daylight Saving Time (DST): Use the DST button to enable or disable Daylight Saving Time. The clock can automatically adjust for DST if the atomic signal is received.

Image: Rear view of the clock, highlighting the battery compartment and control buttons for setup and adjustments.

Operating Instructions

Your MARATHON Atomic Wall Clock offers several display options and settings:

• Time Format (AM/PM or 24-Hour): Press the SET button to cycle through display options. One press may switch between AM/PM and 24-hour formats.
• Temperature Unit (°C/°F): Press the °C/°F button to switch the indoor temperature display between Celsius and Fahrenheit.
• Language Selection: The clock supports English, French, and Spanish for day and month display. Refer to the SET button sequence in the detailed manual for language adjustment.
• Manual Time Setting: If the atomic signal cannot be received consistently, you can manually set the time. Press and hold the SET button to enter manual setting mode. Use the + and - buttons to adjust values, and SET to confirm and move to the next setting.
• Atomic Signal Control: To manually initiate or stop the atomic signal search, press and hold the WAVE button for 6 seconds.

Image: Close-up of the clock's digital display, showing time, date, day of the week, and indoor temperature.

Maintenance

• Battery Replacement: Replace batteries when the display dims or becomes erratic. Always replace both batteries with new AA alkaline batteries.
• Cleaning: Wipe the clock with a soft, dry cloth. Avoid using abrasive cleaners or solvents, as these can damage the display or casing.
• Environment: Keep the clock away from extreme temperatures, direct sunlight, and high humidity to ensure optimal performance and longevity.

Troubleshooting

Specifications

Warranty and Support

This MARATHON Atomic Wall Clock comes with a 2-Year Warranty. For technical support, warranty claims, or further assistance, please refer to the official MARATHON website or contact their customer service department.

For more information, visit the MARATHON Store on Amazon.