UNI-T UT81C Operating Manual page 20

Y-axis adjustment: Press Range button under scope
mode, the corresponding functional button:
Move Move
F1 F2
F1: move up the waveform
F2: move down the waveform
F3: go up range
F4: go down a range
The auto set feature will be off when changing the
measurement mode
Press Time button under scope mode, the
corresponding functional button:
Base Base
F1 F2
18
Rang Rang
F3 F4
Base < Base >
F3 F4
Model UT81C: OPERATING MANUAL
F1: increase the number of periods
F2: decrease the number of periods.
F3: trigger point move left
F4: trigger point right move
The auto set feature will be off when changing the
measurement mode.