5
Note
:- All accuracy is guaranteed by proper ratio
resistor calibration and open/short calibration.
If D > 0.1, the accuracy should be multiplied by
Z = 1 , if D << 0.1 in capacitance mode
C
Z = 2
p
f
L,
if D << 0.1 in inductance mode
L
2
1+D
2
p
fc
Sub-display parameters accuracy :
Ae = impedanze (Z) accuracy.
D
Q =
1
Definition :
2
D
1
Rp = ESR (or Rs) x (1+ )
1) D value accuracy : De = ± Ae x (1+D)
2) ESR accuracy : Re = ± Z x Ae (
W
)
M
i.e., Z = impedance calculated by 1 or 2
p
f
L
M
2
p
fc
3. Phase angle
q
accuracy :
q
e = ± (180 /
p
)
x Ae (deg)
Note
:- D : dissipation factor
Q : quality factor
ESR : equivalent series resistance
Rp : equivalent series parallel
resistance
q
: phase angle
6
Explanation on Front Panel
The front panel is shown as figure 1.
1)
Mini USB interface
:- Connect with PC, easily for
data transmission and management.
2)
LCD :-
Used for displaying the measuring results
and various symbols.
3) key :- Used for putting ON or OFF the operating
power for the meter.
4)
Func. Key :-
When
Func.
key is pressed, the main
test mode could be selected sequentially: Auto-LCR
mode-Auto-L mode-Auto-C mode-Auto-R mode-DCR
mode-Auto-LCR mode.
Figure 1
FUNC.
CAL.
GUARD
SORTING
DQESR
FREQ.
ENTER
PC LINK
SET UP
REL%
HOLD
SERPAL
GUARD
INPUT
RX LX CX
LCUR
Lpot
Hpot
HCUR
Press 2 sec
1
2
8
7
6
11 10 9
14 13 12
15
16
3
4
5
