The purpose of Kubler electronic preset counters is to trigger a signal at a particular count value. In the simplest instance this can mean just shutting down a machine, however it could also be the initialisation of control functions (e.g. cutting material to length, transporting parts etc.). Relays, transistors or optocouplers are used as outputs. Relays are suitable for switching heavy loads (up to 2000 VA). The actual switching capacity depends on the model (counter) and can be seen in the data sheet. Most relays are available with a changeover function. The counter starts from zero and counts up to the programmed preset value, at which an output signal is triggered. The counter is then reset to zero - this can be programmed to happen automatically. The current count value is always displayed.