The Canister Filling option allows the gas mixing/dilution system to fill a canister to a particular pressure. The system will stop automatically when the desired pressure is reach, and even allows the desired pressure to be changed while filling.
For most systems, this option uses a mechanical pressure switch, which is adjusted to the desired pressure. For Series 2000 systems, the mechanical pressure switch is replaced with a pressure sensor, that allows the final pressure to be selected in software from the instrument front panel. Series 2000 systems also include a real-time display of the pressure, as well as an audit trail capability for recording: gas concentration, start/stop time, and desired/actual pressure.