17
4) Press
FUNC.
key to select Auto-L-mode. The
primary LCD display will show the quality factor Q.
The equivalent resistance ESR/Rp, phase angle
q
or dissipation factor D can also be shown by
pressing the
D/Q/ESR key.
5) Press
FREQ
key to select frequency value: 100/
120 /1K/10K/100KHz.
6) Press
SER/PAL
key to select series or parallel mode.
2. Capacitance measurement
1) Turn on the power.
2) If voltage exists in the capacit or connect the two
ends of the capacitors for a short time to discharge.
3) There are two ways for capacitance input:
a. Insert the positive polarity of capacitance into the
positive terminal and its negative polarity into the
negative terminal (shown in figure 10);
b. Insert the black and red testing lines with alligator
clip into the "L
CUR
"
,
"L
POT
"
,
terminals and "H
CUR
"
,
"H
POT
"
,
terminal respectively. Connect the alligator clips to
the ends of capacitance corresponding to its polarity
(shown in the figure 11).
GUARD
GUARD
INPUT
Rx Lx Cx
L
CUR
L
POT
H
POT
H
CUR
GUARD
GUARD
INPUT
Rx Lx Cx
L
CUR
L
POT
H
POT
H
CUR
Figure 8
Figure 9
18
4) The default test mode is Auto LCR mode, the
capacitance value will be shown on primary display
and the dissipation factor D will be show on secondary
display. In Auto LCR mode, the
D/Q/ESR
key,
SEL/PAL
key,
SORTING
key and
REL%
key are not available.
Note :-
1) When Auto-LCR mode is active, the secondary
parameter will show the equivalent resistance
in parallel mode (Rp) to replace the D factor if
the C measured value is less than 5pF.
2) In order to avoid damaging the instrument,
the capacitance requires discharge before
measuring
GUARD
GUARD
INPUT
Rx Lx Cx
L
CUR
L
POT
H
POT
H
CUR
GUARD
GUARD
INPUT
Rx Lx Cx
L
CUR
L
POT
H
POT
H
CUR
Figure 10
Figure 11
7) Press
SER/PAL
key to select series or parallel mode.
6) Press
FREQ
key to select frequency value: 100/
120 /1K/10K/100KHz.
5) Press
FUNC.
key twice to select Auto-C mode.
The primary LCD display will show the capacitance
value. The secondary LCD display will show the
dissipation factor D. The quality factor Q, equivalent
resistance ESR/Rp or phase angel
q
can also be
shown by pressing the
D/Q/ESR
key.
