GRAPHTEC GL2000 User Manual page 69

CHAPTER 3 Settings and Measurement
Zone division
Zone division is a function to divide the Y-axis of the Y-T graph into multiple zones and display them so that
the graphs do not overlap.
Select from 1-zone (no zone division), 2-zone division, 4-zone division or 8-zone division.
* For 4-zone division and 8-zone division, 4DIV above and below the center is used for display.
Analog CH and pulse CH can be freely allocated to each zone.
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1-zone (no zone division)
2-zone division
4-zone division
8-zone division