The HAT500 radio frequency ablation system is used for the treatment of cardiac arrhythmia. The ablation generator and the pump for irrigating the ablation catheter are centrally operated via a remote control featuring a touchscreen. All functions are neatly arranged, making the most important parameters visible at a glance. Moreover, clear colour coding prevents errors and saves time; for instance the connector jacks have the same shade as the cables that connect to them.