The well-documented differential pressure measuring principle with exchangeable orifice-plates is the base for this construction. In combination with two independent absolute piezoresistive pressure sensors it gives you a compact Flow Meter which aslo can be used for three different modes. Through the Eletta software Flow Center you can easily change function to:
• Gas flow measurement
• Liquid flow measurement
• Diferential Pressure
The M-series is one of the smallest gas flow meters on the market to measure most gases with an automatic compensation for changes in pressure and temperature.
As Flow meter for liquids as oil and water it is an accurate meter that can be used with different pipe sections in most sizes. M3-series comes in three pressure classes: 10, 25 and 50 bar.

Flow range	0,2–25 000 l min (liquid), to choose the right range, please refer to the table of measuring ranges
Flow turndown	1:10
Cover	PA 12 Grilamid with conductive layer inside
Wetted Material	Copper alloy, painted steel, stainless steel, 316L
Rubber Parts	Nitrile (HNBR), EPDM and Fluorinated rubber (FPM)
Min pressure*	- M310: 1 bar(g) (14,5 PSI) - M325: 1,75 bar(g) (25,4 PSI) - M350: 3 bar(g) (43,5 PSI) * Minimum pressure to get a proper reading, provided there is a flow in the system.
Max pressure	- M310: 10 bar(g) (145 PSI) - M325: 25 bar(g) only for threaded pipes G15-25BR/SS and GL40. FA/ FSS pipes 16 bar(g) - M350: 50 bar(g) only for threaded pipes G15-25BR/SS and GL40. FA/ FSS pipes 16 bar(g)
Temperature control unit	-10°C to 100°C. (Sensors compensated from -10°C to 80°C.)
Ambient temperature - with display	-10°C to 70°C
Maximum temperature pipe section	G..BR, -GL, -FA : 120°C G..SS, F..SS : 250°C
Enclosure	IP67 without display & IP65 with display
Process connections	DN 15-40, BSP/NPT thread DN15-500 DIN/ANSI flange (wafer)
Accuracy	+/- 1% FS of the default differential pressure (M310: 500 mbar, M325: 1250 mbar, M350: 2500 mbar) at reference conditions.
Display (option)	Loop powered Display of OLED 128*32 pixels