Blogs

Discover the key differences between point level sensing and continuous level measurement — and how Whitman Controls’ L20, L90, L95, and L96 series help engineers choose the right technology for simple high/low alarms, real-time VFD control, leak detection, and safety-critical redundancy architectures.

Discover how to correctly match sensing technology — differential pressure, capacitance, float, or ultrasonic — to your pressurized tank’s media, crush pressure ratings, and mounting configuration, with a complete installation and safety guide using Whitman Controls’ L20, L40, L96, and Red Seal series instruments.

Discover how specific gravity directly determines float switch performance in low-density liquids like oils and solvents — and how Whitman Controls’ L20, L30, and L95 series are engineered to deliver reliable level detection down to a specific gravity of 0.70, including precise liquid interface detection between two immiscible fluids.

Discover how to match the right float material — Buna-N for petroleum and hydraulic oils, stainless steel for high-pressure and hygienic applications, or polypropylene for chemically aggressive lower-pressure systems — to ensure long-term buoyancy, compatibility, and reliability in your Whitman Controls liquid level switch.