The AER-USA Float Switch is a critical automatic safety control engineered for use in biogas digesters. Its primary function is to prevent digester mixers from running dry—a risk that occurs when rising HDPE covers lift mixers above the liquid level during gas production. By shutting down mixer motors before exposure, this switch safeguards against overheating, electrical hazards, and costly equipment damage.

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Built for hazardous environments, the float switch features an intrinsically safe milliamp-rated sensor, a waterproof junction box, and C1D1-certified components for full compliance in biogas applications. Its plug-and-play compatibility allows for easy integration into existing mixer systems, delivering peace of mind and improved operational uptime.

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Key Benefits:

✔ Prevents Mixer Overheating: Automatically shuts down the motor when liquid levels drop too low.

✔ Protects Against Electrical Risk: Stops mixers from entering the gas zone as covers rise.

✔ Reduces Downtime & Repair Costs: Prevents exposure-related damage and unplanned maintenance.

✔ Biogas-Ready & Certified: Includes intrinsically safe components suitable for C1D1 environments.

✔ Easy Integration: Compatible with most digester mixer configurations.

 

Technical Specifications:

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Applications:

• Anaerobic digester mixer systems

• Floating cover protection

• Hazardous biogas environments (C1D1)

• Level monitoring for industrial/agricultural tanks

 

What’s Included:

• Float Switch with integrated sensor

• Waterproof junction box

• Mounting hardware (if specified)

 

Important Shipping & Inventory Notes:

• Shipping Time: Please allow 2-3 weeks for delivery

• Inventory Status: Available for individual or system orders

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Float Switch – Automatic protection where it matters most.