China Electronics Technology Instruments AV3672 Series, Руководство пользователя

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3 Introduction to Use
3.5 Data Analysis
66
Fig. 3.60 Limit Test
3.5.3.2 Limit Table
Type Start stimulus Stop stimulus Start response Stop response Limit type
1 MAX 100.000kHz 100.000kHz -100.000dB -100.000dB SLOP
2 MIN 100.000kHz 3.000GHz -100.000dB -100.000dB FLAT
3 OFF 100.000kHz 3.000GHz -100.000dB 100.000dB SLOP
Fig. 3.61 Limit Table
“Type” box
The “Type” box is used to set the limit test type:

MAX: the limit test fails if the trace is above the limit segment.

MIN: the limit test fails if the trace is below the limit segment.

OFF: disable the test of the limit segment.
“Start stimulus” box and “Stop stimulus” box
Set the start and stop stimulus value of the limit segment (i.e. X-axis start and stop coordinates of the limit
segment).
“Start response” box and “Stop response” box
Set the start and stop response value of the limit segment (i.e. Y-axis start and stop coordinates of the limit
segment).
“Limit type” box
Set the limit line display mode of the limit test:

SLOP: display the slope limit line.

FLAT: display the flat limit line.

POINT: display the point limit line.
3.5.3.3 Setup of Limit Test
After creating the limit line, select the mode of displaying or hiding the limit line of one trace. Even if the limit line
is hided, the corresponding limit test is still effective. The limit test is not applicable to the stored trace. You can
select to send the warning sound and display the failure sign (FAIL) in case of the failure of limit test. When the
limit test function is enabled, the trace of the faulty part is red in the default mode. You can change the
limit
failure color
in the “
Color setting
” of the right-click menu of the mouse, and the trace color of the passing part
remains unchanged.
1) Setting method
a) Menu path: [Analysis] > [Test] - [Limit Test] . The test dialog box will appear.