37 | 8 4
In any case, if you want to abort the test output, just press the
【
STOP
】
key.
The capacitance value displayed by the tester is not the actual capacitance value, but the value of
the sampled current after impedance conversion, which should be approximate to the actual
capacitance value installed between the test terminals.
Take a 3-coil inductor as an example: the capacitance between 1-2 is about 300P, 1-3 is about 200P,
2-3 may be short-circuited.
First confirm the open circuit value, do not connect the DUT, sampling:
Cs=100P;
Then confirm the standard value, and connect the DUT multiple times to record the
sampling Data range: Cs=350P~450P;
Finally confirm the short circuit value, short circuit 2-3,
multiple sampling data range: Cs = 550P ~ 650P.
Parameter setting calculation:
1)
Assume Cs=400P
2)
OPEN value: the low limit is 100P/400P=25%, the high limit is 350P/400P=88%, and it is
recommended to take 60%;
3)
SHORT value: the low limit is 450P/400P=112%, the high limit is550P/400P=138%, and it is
recommended to take 125%.
4.6 Voltage Breakdown Test
4.6.1 Brief description
The voltage breakdown test is a destructive test of the ultimate ability of the DUT in the real test.
4.6.2
Operation instruction
1. On the non-TEST page, ie. SYSTEM or SETUP interface, press
【
STOP
】
to enter the interface
shown in Figure 4-21.
2. Press the F1 key , select the test mode of BDV(Break Down Voltage), press the
〖
TEST
〗
key to
enter the test interface, as shown in Figure 4-22.
3. Press F3 or F4 to select the NormStep and VoltStep, use the direction keys and the scroll wheel to
move the cursor to the test parameter item to be set. The corresponding operations can be
performed through the F1~F6 keys and the numeric keypad.
4. Start the test after setting is completed. As shown in Figure 4-23.
Figure 4-21
F1
F2
F3
F4
F5
F6
