RuoShui VR-6243 Operation Manual

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".
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MEASURE
RANGE ACCURACY RESOLUTION
2nF 1pF
±(1.0%+5)
200nF 100pF
2uF 1nF
±(2.0%+5)
20uF 10nF
0.1uF to
100.0uF ±
(2.0%+5)
200uF 100nF
100.1uFto
199.9uF±
(3.0%+10)
Just for
1000uF 1uF
reference
" appears.
(6)．Low battery indication:"
(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)
RESOL MEASURE
RANGE ACCURACY
UTION FREQUENCY
2mH 1uH 1KHz
20mH 10 uH 1KHz
±(2.0%+5)
200mH 100uH 1KHz
±(5.0%+5)
2H 1mH 1KHz
±
THROU
20H
GH
(5.0%+15)
FREQUEN
VOLTA -6
H
uH=10 mH=10
CY
GE
(2).CAPACITANCE(C)
1KHz 150mV
1KHz 150mV
-12
F
PF=10 nF=10
1KHz 150mV
150mV
100Hz
4. OPERATION
4-1 Front panel description
15 mV
100Hz
(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.
100Hz 1.5mV
(4).Input terminal: connect the test leads.
(5).Measuring switch: Press the key to start measure .
4-2 CONSIDERATION OF
MEASUREMENT
(1) This LC
intended for measuring the
capacitance
capacitor, the inductance
value of an inductor. It is
not intended
determining the "Q" factor
for above
components.
readings may be obtained if
the measurement of the
inductance or capacitance of
a resistor is attempted.
(2) When
components in circuit, the
circuit must be switched off and de-energized before
connecting the test leads.
THROUGH
(3) For all measurements, should connect BLACK test lead to
CURRENT
"-" terminal and RED test lead to "+" terminal.
150uA
(4) Do not short-circuit the input terminal, or will cause the
150uA internal burning .
150uA
4-3.INDUCTANCE (L) MEASUREMENT PROCEDURE
(1) Set POWER switch to "ON" position.
150uA
(2) Select the range switch for the maximum expected
inductance.
100Hz 15uA
10mH
-3
H
-9 -6
F uF=10 F
METER is
value of a
for
reactive
Misleading
measuring