Wastewater & Water Treatment AST Overfill Alarm Systems

Wastewater and water treatment facilities rely on accurate level monitoring to prevent overflows, protect surrounding environments, and maintain continuous operation. The Meco AST Overfill Alarm provides a dependable audible alert when liquid levels in aboveground storage tanks reach a preset high point, allowing operators to respond before an overflow occurs.

Used in municipal and industrial treatment facilities, Meco alarms support safe tank management where regulatory compliance and environmental protection are critical.

Storage and process tanks in wastewater and water treatment facilities often operate continuously and handle variable flow conditions. The Meco AST Overfill Alarm is a battery-operated, intrinsically safe audible alarm designed to deliver reliable alerts during filling, transfer, or abnormal level conditions.

When the alarm point is reached, a loud 100 dB pulsating audible signal alerts operators on site, providing immediate notification of high liquid levels.

Overflows in wastewater environments can lead to environmental impact, regulatory violations, and operational disruptions. The Meco AST Overfill Alarm assists in overfill prevention by offering a clear audible warning before tank levels exceed safe operating limits.

Key features include:

• Adjustable float switch for site-specific alarm level settings
• Push-button testing before filling or transfer operations
• Manual alarm reset after a high-level condition
• Suitable for protected or standard aboveground tanks

This design supports proactive tank monitoring and consistent operating procedures.

Wastewater and water treatment facilities operate under strict regulatory oversight. The Meco AST Overfill Alarm is Certified Intrinsically Safe to ANSI/UL 913 and designed to meet applicable safety and operational standards.

Standards supported include:

• NFPA 30A
• UL 2244
• UFC requirements

These certifications help facilities reduce risk while supporting environmental protection efforts.

The Meco AST Overfill Alarm offers flexible power configurations to match facility requirements.

• 9 V battery operation with no power consumption during normal conditions
• Ultra-low power draw following alarm activation
• Optional 12 V intrinsically safe power connection for wired installations 

Important: Certain regions of Canada require alarms to be wired and powered by a 12 V source. Always consult local regulations prior to installation.

Many wastewater and water treatment facilities use double-wall tanks or secondary containment systems. The Meco alarm can be configured as an interstitial leak monitor, with probe lengths custom-built to meet tank manufacturer specifications.

This configuration allows early detection of leaks in containment spaces, supporting environmental protection and maintenance planning.

Treatment facilities often experience fluctuating temperatures and continuous duty cycles. The Meco AST Overfill Alarm is designed for dependable performance in these conditions.

Operating temperature ranges:

• 9 V Alkaline: −4°F to +130°F
• 9 V Lithium: −40°F to +158°F (recommended for extended life)

With no power draw in non-alarm conditions, the system provides long service life with minimal maintenance.

Meco AST Overfill Alarms are commonly used in:

• Wastewater treatment plants
• Water treatment facilities
• Process and storage tanks
• Industrial wastewater systems
• Municipal water infrastructure

These applications benefit from simple, audible alerts that support operational awareness and environmental responsibility.

 Whether you are upgrading existing equipment or planning a new installation, our team can help determine the right alarm configuration for your wastewater or water treatment application. 

Meco provides intrinsically safe AST overfill alarm systems for wastewater and water treatment facilities throughout the United States and Canada.