Gas Select™ and Composer™ tutorial
Alicat mass flow devices come preloaded with 98-130 gases that are selectable using Gas Select™. Composer™ firmware additionally allows the user to create and store up to 20 custom gas mixes.
See below for instructions how to use Gas Select™ and Composer™.
Video tutorial
Step-by-step instructions
Gas Select™ (front panel)
- Press the bottom right button for “MENU” selection.
- Press the bottom left button for “BASIC CONFIG” selection.
- Press the top left button for “GAS” selection.
- Use the up and down buttons to select your desired gas.
Composer™ (front panel)
- Press the bottom right button for “MENU” selection.
- Press the bottom left button for “BASIC CONFIG” selection.
- Press the top left button for “GAS” selection.
- Use the up and down buttons to select “COMPOSER User Mixes”.
- Press the bottom left button for “SET” selection.
- Use the up, down, and select letter buttons to name your user mix.
- Press the bottom left button for “SET” selection.
- Press the top middle button for “ADD GAS” selection.
- Use the up and down buttons to select your desired gas.
- Press the bottom right button for “SELECT” selection.
- Use the up, down, and select digit buttons to set your desired gas percentage.
- Press the bottom right button for “SET” selection.
- Repeat for the remaining gases in your mixture.
Composer™ (serial)
Use your RS-232 or RS-485 serial connection to create a Composer™ gas mix with a single command:
- [unit ID]gm [mix name] [gas number, or 0 for next available number] [1st gas composition %] [1st gas ID in Gas Select] [2nd gas composition %] [2nd gas ID in Gas Select]
For example, to generate a Composer™ user mix called “Laser2” with a composition of 71.35% He + 19.25% N2 + 9.4% CO2 on an Alicat with a unit ID of A, simply type the following into your serial interface:
- agm Laser2 0 71.35 7 19.25 8 9.4 4 <enter/carriage return>