Vertical V/Div Adjustment Setting; Settings Of Waveform Inverting - Tenma 72-2650 Operating Manual

probe coefficient for the input channel as shown in
the figure below.
Figure 2-6 Probe Attenuation Coefficient
Setting in Channel Menu

Vertical V/div adjustment setting

Adjustments of vertical deflection factor V/div gear
position can be set to coarse adjustment and fine
adjustment by pressing the F3 function key.
Coarse adjustment, V/div can be adjusted in steps
of 1,2 and 5,
e.g. 10mV/div->20mV/div ->50mV/div.... etc.
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72-2650/72-10510/72-8225A /72-8705A/72-8710A user manual
Fine adjustments refer to changing the deflection factor
with smaller stepping within the current vertical gear
position range.
Figure 2-7 Coarse and Fine Adjustment of
Vertical Deflection Factors

Settings of waveform inverting

Waveform inverting can be set by the F5 function button.
The measured input signal will display with 180
degrees difference (vertically inverted) if the waveform
inverting is ON. Please see Figure 2-8 for a non-inverted