New large-flow capacity mass flowmeters
Newly developed XFM57, XFM67 and XFM77 digital flowmeters (photo) with extended flowrates up to 1,000 L/min are now available. Calibrations for up to 10 different gases and internal conversion factors for up to 32 gases are offered. Flowrates are displayed in 23 different volumetric or mass flow engineering units, including those defined by the user. XFMs support various functions including: programmable flow totalizer, high- and low-flow alarms, automatic zero adjustment, two-relay outputs, jumper selectable 0–5 V d.c. or 4–20-mA analog outputs as well as status LED diagnostics. Optional local 2 × 16 characters LCD display with adjustable backlight provides flow, total and diagnostic readings simultaneously. Meters can be programmed remotely via RS-232/RS-485 or optional Profibus DP interface. — Aalborg Instruments, Orangeburg, N.Y.