Kusam-meco 306 User manual

The Multimeter Structure (see figure 1)
1) LCD DISPLAY :
A 3½ digit display (maximum reading 1999)
indicates measured values, and features
symbols indicating function, Low Battery,
Continuity, Diode.
2) FUNCTION SELECTOR :
To Select ACV, DCV, ACA, DCA, Resistance,
Inductance, Capacitance, Frequency, Diode,
Continuity & Transistor Test.
2
( Figure 1)
W
750V MAX
1000V
200mA MAX
FUSED
10A/60sec. MAX
FUSED
CAT II 1000V
CAT III 600V
306
10A
mA COM
VW
DISCHARGE CAP.
BEFORE TESTING.
MAX
/
OFF
2m
20m
200m
2
20
2000M
20M
2000K
200K
20K
2K
200
2n
20n
200n
2m
200m
PNP
NPN
hFE
20m
10A
200m
A
200m
2
20
200
1000
750
Hz
DUTY%
H
V
F
199.9
W
KW
AC
MAX
%
hFE
hFE
E
B
C
E
Cx Lx
1
3

Display Symbols (see figure 2)
( Figure 2)
199.9
W
KW
AC
MAX
%
hFE
H
Symbol
No.
1
2
3
4
5
6
7
8
9
10
Meaning
Dangerous Voltages.
Indicator for AC voltage or
current, The displayed value
is the mean value.
Indicates negative reading.
Test of diode.
Data Hold is active.
The continuity buzzer is on.
A : Amperes (amps). The unit
of current.
V : Volts. The unit of voltage.
Hz : The unit of frequency.
mV, V
Hz
- +
~
!
mA, A
The battery is low.
Warning : To avoid false
readings, which could lead to
possible electric shock or
personal injury, replace the
battery as soon as the battery
indicator appears.
·)))

Caution :
!If the value of voltage to be measured is unknown,
use the maximum measurement position (750)
and reduce the range step by step until a
satisfactory reading is obtained.
!The LCD displays “1” indicating the existing
selected range is overloaded, it is required to
select a higher range in order to obtain a correct
reading.
!In each range, the Meter has an input impedance
of approx. 10MW. This loading effect can cause
measurement errors in high impedance circuits. If
the circuit impedance is less than or equal to
10kW, the error is negligible (0.1% or less).
!When AC voltage measurement has been
completed, disconnect the connection between
the testing leads and the circuit under test.
C. AC Current Measurement (see figure 5)
(Figure 5)
RedBlack
~
W
750V MAX
1000V
200mA MAX
FUSED
10A/60sec. MAX
FUSED
CAT II 1000V
CAT III 600V
306
10A
mA
COM
VW
DISCHARGE CAP.
BEFORE TESTING.
MAX
/
OFF
2m
20m
200m
2
20
2000M
20M
2000K
200K
20K
2K
200
2n
20n
200n
2m
200m
PNP
NPN
hFE
20m
10A
200m
A
200m
2
20
200
1000
750
Hz
DUTY%
H
V
F
199.9
W
KW
AC
MAX
%
hFE
hFE
E
B
C
E Cx Lx