Alicat Basis 2.0 OEM Flow Controller

We aim to respond within 1 hour

9 field selectable gases including Air, N2, O2, CH4, He, H2, Ar, CO2 and N2O
Full scale flow range of between 100 SCCM and 100 SLPM
Exceptional accuracy as low as ±0.2%f.s or ±1.5% of reading

The BASIS Mass Flow controller range focuses on providing accurate and fast flow control.

Flow ranges and Measurable gases

Full scale flow ranges 100 SCCM to 100 SLPM with a measurement and control range of 0.1% to 100% of full scale (1000:1 turndown). Nine user-selectable gases are stored internally and this allows it to be used in a variety of industries such as producing consistent batches in glass production and mixing gases in molar ratios. The fully field selectable gases included are Air, N2, O2, CH4, He, H2, Ar, CO2 and N2O.

Accuracy and Repeatability

Accuracy of the device is gas dependent on gas but is as good as either ±1.5% of the reading or from ±0.2% of full scale. Flow repeatability is also excellent at ±0.25% of reading or ±0.05% of full scale. Control response times can be as fast as 100ms. A range of flow control scripts can be programmed using the ASCII command set and dosing and batching can be achieved through an built-in totalizer.

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

Digital communications to Basis 2.0 OEM mass flow controllers is either over RS-232 or RS-485. Analog outputs are also available, either 0 – 5 VDC or 4 – 20 mA.
Process connections range from 1/8” NPT female or SAE 4 up to 3/8” NPT female or SAE 6 depending on full scale flow.
Additional valve overrides exist for valve hold and valve exhaust, standard valve is a normally closed valve (NC).
Each device features a stats 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

Devices are rated up to a maximum pressure of 12 barg, dependant on the full scale flow. Please view the technical specifications for full details. The device operates within an ambient and gas temperature range of 0 to 50°C and can handle up to 95% non-condensing humidity. It features an ingress protection rating of IP 40 and experiences a maximum pressure drop of 850 mbar for controllers.

Customisation is available

Standard models come in full-scale flow ranges of 100, 200, and 500 SCCM, as well as 1, 2, 5, 10, 20, 50, and 100 SLPM. We also offer custom full-scale flow ranges and manifold options. Contact us today to discuss your specific flow requirements, or begin customising your product 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
Controllers require a 12 - 24 VDC power supply @ 210 mA
STP reference conditions are 0°C, 20°C, 25°C, 70°F and 1 atm availablea all are fully user-configurable

Industries

The Alicat Basis 2.0 - OEM Gas Mass Flow Controller 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 Controller

Flow ranges and Measurable gases

Accuracy and Repeatability