GRAPHTEC GL980 - Page 135

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CHAPTER 3 Settings and Measurement
Vernier
Set the XY Vernier.
This setting is for XY display setting only.
Vernier is a function to adjust the amplitude (gain).
Adjust the display width range of the waveform displayed on the XY graph.
-10DIV -5DIV
10DIV
Reference point 5DIV 10DIV
Position 100%
Position 80%
Position 60%
Position 50%
Position 40%
When the Vernier is set to 100%, it magnies equally along the axis. Therefore the waveform display reects
the Vernier setting magnication.
For example, when the Vernier is set to 80%, it is displayed with a size of 80% compared with 100%.
(The above gure shows the sample when the XY position is set to 50%)
The setting range for the Vernier setting of the Range mode depends on the set range.
V/DIV range
Vernier setting
range
1mV/DIV 100% to 50%
2mV/DIV 100% to 40%
5mV/DIV 100% to 50%
10mV/DIV 100% to 50%
20mV/DIV 100% to 40%
50mV/DIV 100% to 50%
100mV/DIV 100% to 50%
200mV/DIV 100% to 40%
500mV/DIV 100% to 50%
1V/DIV 100% to 50%
2V/DIV 100% to 40%
5V/DIV 100% to 50%
10V/DIV 100% to 50%
20V/DIV 100% to 40%
V/DIV range
Vernier setting
range
0.5mVrms/DIV 100% to 50%
1mVrms/DIV 100% to 40%
2.5mVrms/DIV 100% to 50%
5mVrms/DIV 100% to 50%
10mVrms/DIV 100% to 40%
25mVrms/DIV 100% to 50%
50mVrms/DIV 100% to 50%
100mVrms/DIV 100% to 40%
250mVrms/DIV 100% to 50%
500mVrms/DIV 100% to 50%
1Vrms/DIV 100% to 40%
2.5Vrms/DIV 100% to 50%
5Vrms/DIV 100% to 50%
10Vrms/DIV 100% to 40%
Vernier setting of the Span mode can be set within the range of 40 to 100%.
Also, the lower span limit is set to -5DIV position and the upper span limit is set to 5DIV position.