GRAPHTEC midi LOGGER HV User Manual page 134

CHAPTER 3 Settings and Measurement
• Span mode
SPAN mode
Lower limit span value
The position reference point in Span mode is the center point between the upper limit span value and the
lower limit span value.
Also, the lower limit span value is placed at -5DIV position and the upper limit span value is placed at
5DIV position.
For details of Range mode/Span mode, refer to "3.3 Operation Modes"-"(3) XY waveform display" - "Range
mode/Span mode".
3-90
Reference point
Center point of the upper and lower limit span
= (upper limit span value + lower limit span value) / 2
Upper limit span value