Chemical & Process Manufacturing AST Overfill Alarm Systems

Chemical and process manufacturing facilities require dependable overfill protection to reduce safety risks, protect personnel, and maintain uninterrupted operations. The Meco AST Overfill Alarm provides a reliable audible alert when liquid levels reach a preset point during tank filling, helping operators respond quickly and prevent overfill events.

Designed for use in aboveground storage tanks (ASTs), Meco alarms support safer handling of chemicals and process fluids in industrial environments where accuracy and reliability are essential.

Chemical storage tanks often operate under demanding conditions where monitoring equipment must perform consistently and safely. The Meco AST Overfill Alarm is a battery-operated, intrinsically safe audible alarm suitable for a wide range of chemical and process manufacturing applications.

When liquid reaches the preset alarm level, the system activates a loud 100 dB pulsating audible signal, alerting operators during filling or transfer operations.

Overfills in chemical environments can result in equipment damage, safety hazards, and costly cleanup. The Meco AST Overfill Alarm assists in overfill prevention by providing a clear audible warning before product reaches critical levels.

Key capabilities include:

• Adjustable float switch to set site-specific alarm points
• Simple push-button test prior to tank filling
• Audible alarm reset after a high-level event
• Use on protected or standard aboveground tanks

This straightforward design supports safe and repeatable operating procedures during chemical handling.

Many chemical manufacturing environments require intrinsically safe equipment. The Meco AST Overfill Alarm is Certified Intrinsically Safe to ANSI/UL 913, making it suitable for use in hazardous locations where flammable vapors or volatile materials may be present.

Designed to meet industry standards including:

• NFPA 30A
• UL 2244
• UFC requirements

These certifications help facilities support safety programs and regulatory compliance.

The Meco AST Overfill Alarm can operate using either 9-volt battery power or a 12-volt intrinsically safe power source, providing flexibility across facility configurations.

• 9 V battery operation with no power consumption during non-alarm conditions
• Ultra-low power usage after alarm reset
• Optional 12 V line power for wired installations

Important: In certain regions of Canada, alarms must be wired and powered by a 12 V source. Always verify local regulatory requirements prior to installation.

In facilities using double-wall tanks or secondary containment, the Meco alarm can be configured to function as an interstitial leak detector. Probe lengths can be custom built to meet tank manufacturer specifications, allowing integration into existing containment systems.

This dual-use capability makes the Meco alarm a versatile solution for chemical storage operations.

Chemical processing facilities demand equipment with long service life and minimal maintenance. The Meco AST Overfill Alarm is designed for durability and efficient operation.

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 normal operation, the alarm delivers dependable performance over extended periods.

Meco AST Overfill Alarms are used in a variety of chemical and process manufacturing environments, including:

• Chemical storage tanks
• Process fluid tanks
• Industrial manufacturing facilities
• Specialty chemical handling operations
• Bulk chemical storage areas

These applications benefit from reliable audible alerts that support safe filling and transfer operations.

Whether you need a single alarm or bulk quantities for multiple tanks or facilities, our team can help determine the appropriate configuration for your chemical application. 

Meco provides intrinsically safe AST overfill alarm systems for chemical and process manufacturing facilities throughout the United States and Canada.