Overview

Non‑Invasive Pressure Monitoring System

Portagas® is an advanced contents‑monitoring solution designed for pressurised, non‑liquefied inert gas cylinders. It uses a combination of acoustic sensing, advanced signal processing, and empirically validated data models to assess cylinder pressure without opening, weighing, or disturbing the system.

Accurate Pressure Assessment Through Temperature Compensation

Pressure readings alone do not provide a complete picture of a cylinder’s condition. In sealed vessels, pressure varies directly with temperature, meaning changes in pressure do not automatically indicate a loss of contents. Traditional pressure gauges address this by displaying broad acceptable pressure ranges for different temperatures, relying heavily on manual interpretation by inspection personnel.

Portagas® removes this uncertainty by incorporating an integrated infrared temperature sensor within the measurement head. At the moment of testing, the system records the cylinder’s surface temperature and combines it with known fill pressure and fill temperature data. Using high‑accuracy gas models, it calculates the precise pressure that should be present at the measured temperature, accounting for the physical properties and behaviour of the contained gas.