Aalborg Instruments ZFM mass flow meters

Aalborg Instruments’ ZFM mass flow meters combine meter intelligence, user convenience and good flow performance. They are designed for multigas/multirange functionality up to 8 bar (currently six gases) and standard accuracy of ± (0.5% RD + 0.2% FS) based on actual calibration.

By connecting the instrument to the RS232/RS485 port of a PC or laptop and running the free ZFM Configuration Utility software, the user can select different gas types and flow ranges within a few minutes without removing the instrument from the installation. Supported gases include N₂, air, O₂, argon, helium and CO₂.

Features include: extensive self-diagnostics with status LED or OLED (optional) indication; automatic sensor zero offset adjustment (digital interface or local push-button); digital interface (RS232 or RS485) test/configuration port; two programmable totalisers; full-scale covered flow ranges from 3.5 to smL/min to 10 sL/min in seven models; selectable analog 0-5 VDC, 0-10 VDC or 4-20 mA outputs; universal 14-24 VDC power supply input.