CMRR 3.0E | User Manual
10
Figure 5-1, the upper panel of CMRR 3.0E
The whole CMRR 3.0E operation can be done with the knobs on the upper panel. All of the parameters
can be shown on the LCD touch screen.
5.1.1
LCD Touch Screen
The LCD touch screen displays all the options and test parameters.
The main page of LCD touch screen is used for select functions of
“
Standard
”, “
Voltage
”, “
Frequency
”,
“
Impedance
” and “
DC Offset
”
by touching the area.
Once selected, the area shall be with light blue background display. User can click the up arrow button or
the down arrow button to switch between different options. For example, you can click the arrow bottom
to quickly switch [Off], [20], [2.828], [0.5] and [2.0] Vrms for Supply Voltage under [Manual] standard.
Otherwise, user can double click the function to have all the options shown in a separated page.
5.1.2
[Coarse] Knob
Located at the right side of the LCD display, it is used to tune adjustable capacitance Ct to make its sum
with stray capacitance Cx into 100pF. The coarse scale ranges by tens of pF, and the fine scale ranges by
pFs.
5.1.3
[Fine] Knob
Located at the right side of the LCD display, it is used to tune adjustable capacitance Ct to make its sum
with stray capacitance Cx into 100pF. The fine scale ranges by pFs.
