JK2830 Series Operation Manual Chapter 3 Introduction to [DISP]
33
3.6.1
OPEN
The open correction function of JK2830 can eliminate the error caused by the
stray admittance (G, B) parallel-connected with DUT, shown as figure 3-2.
Figure 3-2 Stray Admittance
JK2830 adopts the following two kinds of open correction data:
◼
JK2830 will automatically make open correction test on 41 fixed frequency
points no matter what the currently set frequency is. Based on the open
correction data of the following 41 frequencies, the instrument can calculate
all open correction data of different test ranges which corresponds to all test
frequencies. Move the cursor to
OPEN
and then used
SWEEP OPEN
to
execute full frequency open correction.
20 Hz
100 Hz
1 kHz
10 kHz
100 kHz
25 Hz
120 Hz
1.2 kHz
12 kHz
120 kHz
30 Hz
150 Hz
1.5 kHz
15 kHz
150 kHz
40 Hz
200 Hz
2 kHz
20 kHz
200 kHz
50 Hz
250 Hz
2.5 kHz
25 kHz
60 Hz
300 Hz
3 kHz
30 kHz
80 Hz
400 Hz
4 kHz
40 kHz
500 Hz 5 kHz 50 kHz
600 Hz
6 kHz
60 kHz
800 Hz
8 kHz
80 kHz
◼
10 open correction frequencies can be set in
SOPT NO.
and
FREQ
on
<CORRECTION>
: Move the cursor to
SPOT NO.
and then use the
INCR++
,
INCR+
,
DECR-
,
DECR--
soft key to set the 10 points frequencies
respectively.
Operation steps of open correction function
1)
Move the cursor to OPEN, the following soft keys will be displayed:
◼
ON
◼
OFF
◼
SWEEP OPEN
◼
DCR OPEN
2)
Connect test fixture to test terminal. The fixture is open and not connecting to
any DUT.
3)
Press
SWEEP OPEN,
JK2830 will test the open admittance (capacitance and
inductance) under 41 frequencies. It will take about 75 seconds to finish the
