When a card is withdrawn the application attempts to force the user to exit the application which was run for him or her. All work will be lost unless explicitly saved before the card is withdrawn. A time and charging option is available. This permits a user's card to be charged with time and charge points. Time can be any number of minutes, and the card will not work after the time has expired.
Charge points relate to program values.
Every minute the number of charge points on the card is reduced by the appropriate amount, and when no charge points are left chargeable programs can no longer be run. An audible and visual warning is given at minute intervals when there are less than 5 minutes of time left, or the charge points are running out. The value of time and charge points on the card is displayed at the program selection stage. A variant of this scheme allows variable charging - see Edsetup above. A program, gauge.exe, is also available.