La Crosse Technology 433-3256A

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21” INDOOR | OUTDOOR

ATOMIC WALL CLOCK

Model: 433-3256A

DC: 092619

For information about WWVB, Atomic Time Signal visit: bit.ly/AtomicTime

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WARRANTY INFO

La Crosse Technology, Ltd. provides a 1-year limited time warranty (from date of purchase) on this

product relating to manufacturing defects in materials & workmanship.

La Crosse Technology, Ltd

2830 S. 26th St.

La Crosse, WI 54601

For Full Warranty Details, Visit: www.lacrossetechnology.com/support

CARE + MAINTENANCE

•

Do not mix old and new batteries.

•

Do not mix Alkaline, Lithium, standard, or rechargeable batteries.

•

Always purchase the correct size and grade of battery most suitable for intended use.

•

Clean the battery contacts and also those of the device prior to battery installation.

•

Ensure the batteries have with correct polarity (+ / -).

•

Remove batteries from equipment that will not to be used for an extended period.

•

Promptly remove expired batteries.

FCC STATEMENT

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, uses 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 this equipment does 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.

•

Connect the equipment into an outlet on a circuit dierent from that to which the receiver is

connected.

•

Increase separation between equipment & receiver.

•

Consult the dealer or an experienced radio/TV technician for help.

This device must not be co-located or operating in conjunction with any other antenna or transmitter.

Operation is subject to the following two conditions:

(1 ) This device may not cause harmful interference, and (2) This device must accept any interference

received, including interference that may cause undesired operation.

CAUTION!

The manufacturer is not responsible for any radio or TV interference caused by unauthorized changes

or modifications to this equipment. Such changes or modifications could void the user authority to

operate the equipment.

processed using electronic, mechanical or chemical process without the written permission

of the publisher.

This booklet may contain errors or misprints. The information it contains is regularly checked and

corrections are included in subsequent editions. We disclaim any responsibility for any technical error

or printing error, or their consequences. All trademarks and patents are recognized.

WARNING: This product can expose you to chemicals including styrene, which is known to the

State of California to cause cancer. For more information go to: www.P65Warnings.ca.gov

Need help?

Do you have a question about the La Crosse Technology 433-3256A and is the answer not in the manual?

Summary

Product Setup and Operation

Power Up Instructions

Steps to insert batteries and allow the clock to receive the atomic time signal for initial setup.

Manually Set Time

Procedure to manually adjust the clock's time if the atomic signal is not received.

Product Features

Thermometer and Hygrometer

Information on the pre-calibrated thermometer and hygrometer sensors and manual adjustment.

Product Specifications and Support

Specifications

Details on battery requirements, battery life, and temperature/humidity ranges for the clock.

Summary

Product Setup and Operation

Power Up Instructions

Steps to insert batteries and allow the clock to receive the atomic time signal for initial setup.

Manually Set Time

Procedure to manually adjust the clock's time if the atomic signal is not received.

Product Features

Thermometer and Hygrometer

Information on the pre-calibrated thermometer and hygrometer sensors and manual adjustment.

Product Specifications and Support

Specifications

Details on battery requirements, battery life, and temperature/humidity ranges for the clock.

This document describes the La Crosse Technology 21" Indoor | Outdoor Atomic Wall Clock, Model: 433-3256A.

Function Description:

This atomic wall clock is designed for both indoor and outdoor use, featuring a large 21-inch display. Its primary function is to provide accurate time by receiving the WWVB Atomic Time Signal, which automatically sets the time and adjusts for Daylight Saving Time. In addition to timekeeping, the clock integrates a thermometer and hygrometer, offering ambient temperature and humidity readings. The atomic time feature ensures precise time synchronization, eliminating the need for manual time adjustments under normal operating conditions. The clock is designed to be robust enough for outdoor environments while maintaining an aesthetic suitable for indoor display.

Important Technical Specifications:

Model: 433-3256A
Dimensions: 21 inches (diameter)
Power Source: Battery-operated.
- Movement: 1 AA (IEC LR6) battery required.
- Optional: 2 additional AA (IEC LR6) batteries for extended battery life.
- All batteries are sold separately.
Battery Life:
- 1 Battery: 12 months
- 3 Batteries: 36 months
Temperature Range: -40°F to 140°F (-40°C to 60°C).
Humidity Range: 0% to 100% RH (Relative Humidity).
Atomic Time Signal: Receives WWVB Atomic Time Signal from Fort Collins, CO.
Warranty: 1-year limited time warranty from the date of purchase, covering manufacturing defects in materials and workmanship.
FCC Compliance: Complies with Part 15 of the FCC Rules for Class B digital devices, designed to provide reasonable protection against harmful interference in a residential installation.
Chemical Warning: This product can expose users to chemicals including styrene, which is known to the State of California to cause cancer (as per www.P65Warnings.ca.gov).

Usage Features:

Automatic Time Setting: The clock automatically sets itself to the correct time by receiving the WWVB Atomic Time Signal.
Time Zone Selection: Features dedicated buttons for Pacific Time (PT), Mountain Time (MT), Central Time (CT), and Eastern Time (ET) to set the correct time zone.
Daylight Saving Time (DST) Adjustment: Includes a Daylight Saving Time button (default is DST ON) to enable or disable automatic DST adjustments. If the user lives in an area that does not observe DST, this feature can be turned off during the initial setup.
Thermometer and Hygrometer: Integrated sensors provide ambient temperature and humidity readings. These sensors are pre-calibrated, but manual adjustment is possible by gently turning the adjustment dials on the back of the clock after allowing it to sit at room temperature for 2 hours.
Manual Time Setting: In areas where the atomic time signal reception is weak or unavailable, the clock can be manually set. This involves removing all batteries, pressing the Manual Set Tab multiple times, reinserting batteries, and then holding the Manual Set Tab until the correct time is achieved. Note that the atomic time signal will override manual settings if received later.
Optimal Reception: For best reception of the WWVB signal, the clock should be placed on an exterior wall near a window, with its front or back facing Fort Collins, CO. It may take up to 5 nights for the clock to receive the transmission.
Battery Compartments: Features a center battery compartment for the movement and optional extra battery compartments for extended battery life. All batteries used should be of the same voltage level.

Maintenance Features:

Battery Care:
- Do not mix old and new batteries.
- Do not mix different battery types (Alkaline, Lithium, standard, or rechargeable).
- Always use the correct size and grade of battery.
- Clean battery contacts and device contacts before installation.
- Ensure correct battery polarity (+/-).
- Remove batteries from equipment not in use for extended periods.
- Promptly remove expired batteries.
Sensor Adjustment: The thermometer and hygrometer are pre-calibrated, but if adjustment is needed, it can be done manually by gently turning the adjustment sensors on the back of the clock.
Troubleshooting: The manual provides guidance for FCC compliance and interference issues, suggesting measures like reorienting the antenna, relocating the equipment, or consulting a technician.
Warranty Support: For full warranty details, users can visit www.lacrossetechnology.com/support.