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Alicat Scientific

M Series Standard Mass Flow Meter

An extremely fast, accurate, repeatable, and customizable mass flow meter

Have questions? We're here to help!
Have questions? We're here to help!

Measure mass flow, volumetric flow, pressure and temperature in a compact device that will be the star of your lab.  Gas mass flow meters from Alicat are highly flexible instruments that can be used with many gases across a very wide range.  As soon as you turn on the flow meter, it’s ready to display live flow, pressure and temperature readings in your choice of engineering units.  Measure flows with NIST-traceable accuracy for a variety of gases down to 1/200th of full scale, or define your own gas composition with COMPOSER™. 

The M series is suitable for most flow measurement applications, with models that can measure flow rates as high as 5000 slpm or as low as 0.0025 sccm.  Instruments in the M series are also available with an optional “S” configuration for use with aggressive or corrosive gases (MS).  In this configuration, the flow body and sensor are upgraded to 316L stainless steel and the elastomers are FFKM.  The M series is also available in a battery-powered portable configuration (MB).

Alicat’s M series mass flow meters feature dual digital and analog communications by default and can be ordered with Ethernet/IP, EtherCAT, DeviceNet, Profibus or Modbus (RTU and TCP/IP) communications for easy integration into your digital industrial or laboratory network.  Other build options include your choice of display, process connections, elastomeres as well as performance options.  Need further customization?  Contact us and we’d be happy to help you build the instrument you need.

Each flow meter comes with a NIST-traceable calibration certificate and an Alicat operating manual.  Power supply sold separately. 

Other Alicat Mass Flow Meters
The MW, or “Whisper”, is best for low pressure drop applications, minimizing system impact and enabling flow measurement at near-atmospheric pressures or when there is little available system pressure.  The versatile MQ flow meter is useful when your line pressures are high (160 - 320 PSIG), reducing the time it takes to verify or validate flows.

• Simultaneously measure volumetric flow, mass flow, gas pressure, and gas temperature.
• Field-adjustable engineering units and STP/NTP conditions.
• Select process gas from 98+ preloaded NIST-traceable gas calibrations.
• Define and store 20 custom gas mixtures of up to 5 constituent gases.
• Read measurements from the backlit display and control configuration using the integrated touchpad.
• Optional integrated dual flow totalizers and alarms.
Maximum Available Range0 - 5000 slpm
Minimum Available Range0 - 0.5 sccm / 0 - 500 sμlm
Turndown Ratio200:1
Standard Accuracy Calibration± (0.8% of the reading + 0.2% of FS)
Optional High-Accuracy Calibration± (0.4% of the reading + 0.2% of FS)
Repeatability0.2% of FS
Typical Measurement Response Time5 - 10 ms
Compatible Gases98
Operating Temperature-10°C - 60°C
Max Internal Pressure (Static)145 PSIG (160 PSIA)
Max Differential Pressure (Inlet to Outlet)75 PSID
Proof Pressure175 PSIG (190 PSIA)
STP/NTP Default25°C & 1 atm STP/0°C & 1 atm NTP
Ingress ProtectionIP40
Wetted Materials303 and 302 Stainless Steel, Viton®, Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Silicone, Glass

• Filter characterization
• Faster leak testing

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