Tonghui TH2827 Series - Page 64

TH2827 Series Operation Manual Chapter 5 Execute LCR Operation and Some Examples
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and the following units will be displayed in the soft key zone: p, n, , m
and k. Press n, this zone will be changed as 333.000n and the cursor will
automatically move to the parameter zone of sweep point 2.
l) Press [10], +10 will be displayed in the prompt information zone and the
soft key zone will display the following available units: Hz, kHz and MHz.
Press kHz, this zone will be displayed as 10.0000k.
m) Press [] to move the cursor to the LMT zone of sweep point 2, this zone
will be displayed as---. The following soft key will be displayed in the soft
key zone: LIMIT DATA A, LIMIT DATA B and OFF.
n) Press LIMIT DATA B to select the compare secondary parameter D
function. This zone will be displayed as B and the cursor will be
automatically moved to the low limit zone of the sweep point 2.
o) Press [0][.][0][0][0][1], +0.0001 will be displayed in the prompt
information zone and the soft key zone will display the following available
units: p, n, , m and k. Press [ENTER], this zone will be changed as
100.000 and the cursor will automatically move to the high limit zone of
sweep point 2.
p) Press [0][.][0][0][0][3], +0.0003 will be displayed in the prompt
information zone and the soft key zone will display the following available
units: p, n, , m and k. Press ENTER, this zone will be changed as
300.000 and the cursor will automatically move to the parameter zone
of sweep point 3.
q) Based on 1-p steps, input 100kHz, B, 0.0060 and 0.0100 for the 3rd
sweep point.
3) Alarm setup
a) Press [SYSTEM] to enter into the <System Setup> page.
b) Move the cursor to the FAIL BEEP zone to select HIGH LONG.
4) Mount the test fixture (TH26005) to the test terminals of TH2827A.
5) Execute correction function (To avoid the influence of the stray impedance on
the measurement accuracy, it is necessary to execute open/short correction
(refer to chapter 5.1.1 Sweep Correction)).
6) Insert the tested capacitor to the test fixture.
7) Execute test operations.
Press [MEAS] and then press LIST SWEEP to enter into the <List Sweep Display>
page. The instrument will test continuously and then display the test and the
compare results on page. If the compare result is H (higher than the high limit) or
L (lower than the low limit), there is a beep alarm. The following figure shows the
measurement display page.
8) If the test result is obviously incorrect, please check the following items.
a) Check the tested inductance is in good connection with the test fixture or
not.
b) Check the test fixture is in good connection with the test terminals of the
instrument or not.
c) Redo the open/short correction.