Alicat Flow Vision SC - Manual (Page 19)

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Tare — The tare function is used to set the zero on the instrument. Tare only
when there is no gas flow going to the unit. The tare function is discussed in
detail in the instruction manual that accompanied your instrument.
Control Tab (Controllers only)
The control tab allows you to change set-point and perform valve tuning on
your controllers.
To change the set-point simply enter the desired set-point in the text box.
Once the set-point number is in the box, click the mouse on the “Set” button
to send the set-point to the instrument. The unit should now be flowing the
process gas at the desired set-point.
Control Loop — You can change the control loop if your process requires.
By clicking the down arrow in the box to the right of “Close Loop”, you can
select to close loop on mass flow, volumetric flow or pressure.
With MC/MCP/MCR series mass flow controllers,you can select to close loop
on mass flow, volumetric flow or pressure, while pressure controllers will allow
you to close loop on pressure and liquid controllers will allow close loop on
volumetric flow.
Once the desired control loop has been selected, click on the “Set” button to
send the command to the flow instrument.