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In industrial tank management, a hydrostatic pressure sensor is one of the most reliable tools for determining liquid volume. Unlike ultrasonic or radar sensors that measure from the top down, a hydrostatic sensor like the Whitman L95 Series measures the weight of the liquid column above it. This guide covers how to convert raw pressure readings into accurate volume data — from calculating liquid height and accounting for specific gravity, to applying the right tank geometry formula and scaling signals in PLCs and panel meters.

The industrial world is moving from reactive maintenance to predictive intelligence. Discover how IIoT-connected pressure and level transmitters — covering edge computing, wireless monitoring, digital twins, and blockchain traceability — are transforming process industries. Insights from Whitman Controls.

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.