Standard deviation, best fit over the curve. This function is valid only when they are less than 3600 data. If
there are more than 3600 data, STATIS will be disabled.
Clear: Clear the graphic screen.
Print: Print out the curve if a printer is connected to PC.
DISPLAY: DISPLAY menu has four options: DIGITAL, ANALOG, LIST, and GRAPHIC.
DIGITAL:
If this option is selected or CTRL+D are pressed, a window, which emulates multimeter's LCD display, shall
appear on the screen.
ANALOG: