Alicat Basis 2.0 - OEM ready Gas Mass Flow Meter

We aim to respond within 1 hour

Accurate flow control in a compact, durable, metal flow body
Full scale flow range of between 100 SCCM and 100 SLPM
9 field selectable gases including Air, N2, O2, CH4, He, H2, Ar, CO2 and N2O

Alicat Basis 2.0 MEMS thermal mass flow meters are designed with the Original Equipment Manufacturer (OEM) in mind. Offering a small footprint, making it ideal for machine placement, benchtop bioreactors or other OEM uses. The Basis 2.0 fits inside the palm of your hand and can be offered with compact, customisable manifolds.

Flow ranges and gases

Basis 2.0 is available with full scale flow rates of 100 / 200 / 500 SCCM or 1 / 2 / 5 / 10 / 20 / 50 / 100 SLPM full scale flow rates. Control an measurement range is within 0.1% – 100% of full scale, thus offering a 1,000:1 turndown ratio.

Basis 2.0 are compatible with 9 user selectable gases out of the box which include Air, N2, O2, CH4, Ar, CO2, N2O, He and H2.

Accuracy and Repeatability

Device accuracy is dependent on full scale and the gas being used with the device.

See the below table for better guidance:

Fluids	Mass Flow Accuracy ¹
Air, N₂, O₂, CH₄	± 1.5% reading or ± 0.2% full scale ²
He, H₂	± 1.8% full scale
Ar	± 1.5% reading or ± 0.5% full scale ²
CO₂, N₂O	100 SCCM – 2 SLPM: 1.5% reading or 0.5% full scale ² 5 – 20 SLPM: 2.0% reading or 1.0% full scale ² 50 – 100 SLPM: 3.0% reading or 2.0% full scale ²

1: Stated accuracy is at calibration conditions, after tare, under equilibrium conditions, includes repeatability and linearity.
2: Whichever is greater.

Process connections and Outputs

Available with either RS-232 or RS-485 digital communications.
Choice of either 0- 5 VDC or 4 – 20 mA analogue outputs.
Process connections are available in two sizes with two options for each.
For 100 / 200 / 500 SCCM and 1 / 2 SLPM meters the choice is either 1/8” NPT or SAE 4.
For 5 / 10 / 20 / 50 / 100 SLPM meters the choices are 3/8” NPT or SAE 6.
Each meter features a status LED to indicate power, serial activity or error state.

Basis 2.0 technical diagram

To view the full specifications please refer to the PDF spec sheet in the 'Data sheets and manuals' section.

Representative examples

Temperature and Pressure

Meters are rated to a maximum pressure of 12 bar gauge (175PSIG) . The ambient and gas temperature range is between 0 and 50°C with a maximum humidity of 95% that is non-condensing. It has an ingression protection rating of IP 40 and has a maximum pressure drop off of up to 30 mbar for meters, dependent on the exact model.

Customisation is available

Standard models are available with full scale flow ranges of 100/ 200 / 500 SCCM and 1 / 2 / 5 / 10 / 20 / 50 / 100 SLPM. Custom full scale flow ranges are also available as well as manifold options. Talk to us today about your customer flow requirements, or start online by clicking the Configure now button below:

Fill out the Configurator Form so our engineers can craft the perfect custom solution for you:

Configure now

Applications

Common process applications and industrial uses include:

Verify flow in carrier gas in gas chromatography
Lowering costs and increasing speed in biologics production
Consistent batches in glass production
Gas mixing in molar ratios

Other features

Small and light footprint from 22.23mm x 68.6mm x 39.4mm @ 116 grams
RS-232 or RS-485 digital communications
0 - 5 VDC or 4 - 20 mA analog output
6 Pin JST GH electrical connection

Industries

The Alicat Basis 2.0 - OEM Gas Mass Flow Meter is widely used in the following industries:

Alicat recalibration service

We provide a certified annual recalibration service on all Alicat mass flow meters and mass flow controllers. Further details on our recalibration service.

Manufacturer

Alicat Basis 2.0 - OEM Gas Mass Flow Meter

Flow ranges and gases

Accuracy and Repeatability