Requested by Overhead Door Company of Bowling Green, the DC-80T-DN-BCD Countdown Timer is a purpose-built visual and audible warning solution designed to improve safety and awareness in loading dock environments. This custom unit was configured to provide workers with a clear, unmistakable countdown sequence that signals when a dock door is in the process of closing. By delivering a highly visible numeric display paired with an end-of-period alert, the timer helps reduce uncertainty and encourages timely movement away from the door area before closure is complete.

This model operates as a countdown timer that can be triggered through multiple control methods, making it easy to integrate into existing dock door systems. Once activated, the display counts down from a preset value and continues to flash at zero until a reset command is issued, ensuring the warning remains visible until the system is acknowledged. An adjustable piezo buzzer sounds at the end of the countdown to provide an additional audible alert, reinforcing the visual warning for workers who may not be directly facing the display.

Timing values are set using BCD rotary switches located at the bottom of the enclosure. These switches allow precise adjustment of the countdown duration in seconds, up to a maximum of 99 seconds. Each incremental click represents a single second, enabling quick and accurate configuration based on the door’s closing cycle. Once set, the timer can be started, stopped, paused, or reset through control inputs, offering flexible operation depending on workflow and safety requirements.

Key functional capabilities of the DC-80T-DN-BCD Countdown Timer include:

• Countdown operation up to 99 seconds using BCD rotary switches
• Start and stop control via contact closure or PNP input (5–30 VDC)
• Reset options to either the last value or the preset value
• Flashing display at zero to maintain visibility until reset
• Adjustable end-of-period piezo buzzer for audible alerts
• Bright and dim display settings for indoor or outdoor visibility

From a hardware standpoint, the DC-80T-DN-BCD is built for demanding industrial environments. The enclosure is constructed from aluminum and features an IP-66 rated black powder-coated finish that resists dust, moisture, and fingerprints. This ensures reliable performance in both indoor and outdoor loading dock applications. The unit utilizes two 8-inch LED digits that are bright and easy to read from distances of up to 400 feet, making the countdown clearly visible across wide dock areas.

Additional hardware features include:

• Two-digit, 8-inch LED display with long-distance visibility
• Aluminum IP-66 rated enclosure for industrial durability
• Black powder-coated finish for environmental resistance
• 120–240 VAC power via junction box with pigtails
• C-channel mounting for secure and flexible installation
• Integrated bright/dim switch for display intensity control
• Dedicated junction boxes for power and control wiring

Overall, the DC-80T-DN-BCD Countdown Timer serves as an effective dock door closing warning system by combining clear visual timing, audible alerts, and flexible control options. Its robust construction and straightforward adjustability make it a dependable solution for improving safety awareness and operational clarity in busy loading dock environments.

See Product: DC-80T-DN-BCD

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