Arcus Trimix Blender

Kim Taavo

About this app

Arcus Trimix Blender shows you exactly how to fill a tank: pick the gas already in the cylinder, pick the mix you want, and the tank drawing shows each fill stage with the pressure to stop at. Free of charge, no account needed, and it works without a signal at the fill station.

Features:
• Nitrox and trimix blending by partial pressure, from any starting mix and pressure

• Visual tank that shows every fill step and the pressure gauge reading for each

• MOD and END/EAD for the resulting mix, with adjustable ppO2 and an "oxygen is narcotic" option

• Advanced mode: blend from any three gas sources you choose, such as banked nitrox, trimix premixes or custom mixes, not just helium, oxygen and air

• Three calculation methods: ideal gas, van der Waals, and real gas (Z-factor) for accurate high-pressure fills

• Ambient temperature compensation

• Metric (bar, metres) and imperial (psi, feet) units

• Shareable links and home-screen shortcuts for your usual fills

• Copy the recipe as text or JSON

• Installs as an app and runs fully offline