Micro-flow flow meter F7M

thermalmassfor liquids

Most flow meters fail below 1 mL/min. Here's why that's a problem. If you're dosing hydrogen peroxide, for sterilisation or managing chemical coating processes, you already know: micro flows are nearly impossible to measure reliably. Traditional methods? Weighing on electronic balances. Guesswork. Process interruptions. The issue isn't just accuracy. It's what happens when bubbles appear, when temperature shifts, or when pulsation throws off your readings. You lose control exactly when precision matters most. What changes at the micro scale Below 50 mL/min, conventional flow measurement breaks down. Azbil's micro flow rate liquid flowmeter F7M uses MEMS sensing technology to measure stable flow rates starting at 0.1 mL/min, a range that was previously unreliable with standard meters. The sensing element sits in a quartz glass and fluoropolymer flow path, which handles both water and aggressive chemicals like H₂O₂ without degradation. Why thermal sensing works here Unlike mechanical meters that struggle with micro flows, thermal flow meters detect heat transfer in the fluid. The F7M maintains stable flow measurement even when conditions aren't perfect, such as bubbles in the line, pressure pulses from pumps, or temperature variations during process cycles. It mounts horizontally or vertically (IP65 rated), measures continuously, and eliminates the calibration headaches that come with trying to manage chemical dosing through weight-based methods. Where it matters Sterilisation systems. Precision filling lines. Coating applications. Any process where a few millilitres per minute makes the difference between spec and scrap.