RIEVTECH STUDIO SOFTWARE MANUAL After you select the option “ Use ... Channel Maximum Minimum Value ” , you can specify a channel number. And the minimum and the maximum values of this channel will be used as the minimum and the maximum values of the Y axis. If the option "Self-setting" is selected, you can set the maximum and minimum values by yourself as the source of Y-axis. The minimum and maximum values can be set by Constant or by Variable.The settings are shown as below. 242