13
GUARD
GUARD
L
CUR
L
POT
H
POT
H
CUR
GUARD
GUARD
INPUT
Rx Lx Cx
L
CUR
L
POT
H
POT
H
CUR
SHORT
Figure 6
Figure 7
5) Press
CAL
key and the 30-second countdown
will be shown on LCD panels. If the short calibration
is finished, the PASS or FAIL symbol will be shown on
the primary display. Press
CAL
key again to save
the calibration data.
Note:
1) To get the better accuracy, the open / short
calibration should be done before measurement.
2) The purpose of open / short calibration is to
reduce the parasitic effect of the test fixture.
3) Open or short circuit, is selected automatically
according to the measurement terminal.
4) In short calibration, there may be FAIL situations,
which may be caused by not using the low
resistance short line or unreliable contact, please
try again after reliable short - circuit
14
8. Sorting mode
The sorting mode could help the user to make a
quick sort for a bunch of components. The setting
step as following:
1) Accordings to the component type, press
FUNC,
key to select L, C or R measurement mode.
2) Insert the standard component into the input
therminal, Press
SORTING
key to enter into the
sorting mode and the "Sorting" symbol appears on
LCD. If the LCD reading is OL or less than 200
counts, the
SORTING
key is not available.
If the impedance is larger than 10K
W
, parallel mode
is set and Lp/Cp/Rp is shown on the display.
If it is less than 10K
W
, series mode is set and Ls/Cs
/Rs is shown on the display. When SEL/PAL key is
pressed, the impedance measurement will be set in
series mode on in parallel mode sequentially.
Note
:- The actual capacitance, inductance and
resistance is not ideal component of pure reactance
and pure resistance. Usually the resistance and
reactance exist simultaneously. A practical impedance
can be simulate by the ideal resistors and ideal
reactor (inductor or capacitor) in series or parallel
form.
When any L/C/R functional mode is selected, the
default measurement in series or parallel mode is
auto selected and the AUTO segment will be shown
on LCD display. It depends on the total equivalent
impedance measured.
7. Equivalent Circuit
