Test procedure-Horizontally place the appliance among the force tester on a flat surface with the switch facing upwards-Accurately align the switch concentric below the force measuring probe-Start measurement and plot force-way characteristic-Determine switch-on point on force-way characteristic (drop of force in the graph) and the maximum actuation force before this (e.g. by zoom and cursor measurement by software, see Fig. 1)-Record the determined value。