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VR-6243
DIGITAL MULTIMETER OPERATION MANUAL
1. SUMMARIZE
The meter is a stable multimeter with 3 2/1 LCD display, It uses
the LCD with 26mm high make the reading clearly .unit symbol
displaying. The meter is used to measure inductance and
capacitance .It takes dual-integral A/D convert as key point.
Using large scale integrated circuit .It’s an ideal tool for lab,
factory and family.
2. SAFETY NOTE
The meter meets the standards of IEC1010. Read the operation
manual carefully before operation.
1
．
Do not input DC Voltage or AC Voltage.
2
．
The voltage below 36V is safety. To avoid electric shock, check
whether the test leads are connected correctly, whether the
insulation is good when measuring over 36DCV or 25ACV, .
3
．
Remove the test leads when changing function and range.
4
．
To select correct function and range, beware of error operation.
；
5
．
SAFETY SYMBOLS
“
”
THE OPERATOR MUST REFER TO THE MANUAL
，
“
”
LOW BATTERY.
3. CHARACTERISTIC
3-1
．
GENERAL
(1)
．
Displaying: LCD displaying.
(2)
．
Max. displaying: 1999
（
3 1/2 digit
）
auto polarity indication.
(3)
．
Measuring method: dual slope A/D conversion.
(4)
．
Sampling rate: approx. 3 times/second.
(5)
．
Over range indication: the MSD displays
“
1
”
.
(6)
．
Low battery indication:
“
”
appears.
(7)
．
Operation environment:
（
0
～
40
）℃，
R.H.<80% .
(8)
．
Power
：
9V
×
1
（
NEDA1604/6F22 or equivalent model.
(9)
．
Size:190
×
88.5
×
27.5mm
(10)
．
Weight : approx 320g(include battery)
(11)
．
Accessory: operation manual, holster, gift box, test leads, and
battery.
3-2
．
TECHNICAL CHARACTERISTIC
Accuracy:
±
(a%×rdg
＋
d)
Temperature:(23
±
5)
℃，
R.H.<75%
，
one year guaranteed from the
production date.
(1). Inductance(L)
RANGE ACCURACY
RESOL
UTION
MEASURE
FREQUENCY
THROUGH
CURRENT
2mH
±
(2.0%+5)
1uH
1KHz
150uA
20mH
10 uH
1KHz
150uA
200mH
100uH
1KHz
150uA
2H
±
(5.0%+5)
1mH
1KHz
150uA
20H
±
(5.0%+15)
10mH
100Hz
15uA
uH=10
-6
H
mH=10
-3
H
(2).CAPACITANCE(C)
PF=10
-12
F
nF=10
-9
F uF=10
-6
F
4. OPERATION
4-1 Front panel description
(1). LCD display: display the measured value and unit.
(2).Backlight switch: turn on /off the backlight .
(3).Function key: Selecting measuring range and function.
(4).Input terminal: connect the test leads.
(5).Measuring switch: Press the key to start measure .
4-2 CONSIDERATION OF
MEASUREMENT
(1)
This
LC
METER
is
intended for measuring the
capacitance value of a
capacitor, the inductance
value of an inductor. It is
not
intended
for
determining the “Q” factor
for
above
reactive
components.
Misleading
readings may be obtained if
the measurement of the
inductance or capacitance of
a resistor is attempted.
(2)
When
measuring
components in circuit, the
circuit must be switched off and de-energized before
connecting the test leads.
(3)
For all measurements, should connect BLACK test lead to
“-” terminal and RED test lead to “+” terminal.
(4)
Do not short-circuit the input terminal, or will cause the
internal burning .
4-3.INDUCTANCE (L) MEASUREMENT PROCEDURE
(1)
Set POWER switch to “ON” position.
(2)
Select the range switch for the maximum expected
inductance.
RANGE ACCURACY RESOLUTION
MEASURE
FREQUEN
CY
THROU
GH
VOLTA
GE
2nF
±
(1.0%+5)
1pF
1KHz
150mV
200nF
100pF
1KHz
150mV
2uF
±
(2.0%+5)
1nF
1KHz
150mV
20uF
10nF
100Hz
150mV
200uF
0.1uF to
100.0uF
±
(2.0%+5)
100nF
100Hz
15 mV
100.1uFto
199.9uF
±
(3.0%+10)
1000uF
Just for
reference
1uF
100Hz
1.5mV
