Scientific SM6026, Руководство пользователя

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User Manual SM6026 56
LOW
）
Lower limit of secondary parameter
（
2nd LOW
）
0.0015
Trigger mode
（
TRIG
）
EXT
（
external
）
Alarm mode
（
CMP ALARM
）
POOR ALARM
（
HIGH LONG
）
Instruction :
1. For small capacitance, equivalent parallel mode should be selected.
2. When any bin of the capacitance passes but loss fails, it will be archived additionally. Now, auxiliary bin
should be set as ON and it will be sorted into AUX BIN. If the AUX BIN is set as OFF, it will be judged
as FAIL when loss fails.
3. Because the given upper and lower limit is based on the percentage tolerance of nominal value 270pF,
the primary parameter should select %TOL percentage mode.
Specific setup :
1) In MEAS DISP page, select Cp-D and set the frequency, level and speed.
2) Press SETUP key to enter into the MEAS SETUP page and change the TRIGGER MODE as EXT
(external trigger).
3) Press SETUP---LIMIT to enter into the LIMIT TABLE SETUP page and set the nominal value, primary
parameter tolerance mode, upper/lower limit parameter, comparator switch and auxiliary bin switch.
4) Press SYSTEM key to enter into the SYSTEM SETUP page (System Config), find FAIL BEEP item
and set it as HIGH LONG.
5) Return to the MEAS DISP page after setup.
5.8 Operation example of load correction
1) Operation steps
Test condition
Frequency: 100kHz
Cp: 11nF
D: 0.0005
a) Press [SETUP], the following soft keys will be displayed in the soft key zone: MEAS SETUP,
CORRECTION, LIMIT SETUP, LIST SETUP, FILE MANAGE and TOOL.
b) Press CORECTION to enter into the <CORRECTION> page.
c) Move the cursor to Open, the following soft keys will be displayed in the soft key zone: ON, OFF and
OPEN ALL.
d) Press ON to turn on the open correction function.
e) Move the cursor to Short, the following soft keys will be displayed in the soft key zone: ON, OFF and
SHORT ALL.
f) Press ON to turn on the short correction function.
g) Move the cursor to
LOAD , the following soft keys will be displayed in the soft key zone: ON and OFF.
h) Press ON to turn on the load correction function.
i) Move the cursor to FUNC, this zone will display Cp-D. Meanwhile Cp—…→
， Cs—…→ ， Lp—…→ ，
Ls—…→
，
Z—…→
，
↓ will be displayed in the soft key zone.
j) Press Cp-D to select the Cp-D function.
k) Move the cursor to FREQ 1 zone, the following soft keys will be displayed in the soft key zone: ON,