RuoShui VR-6243 User manual

www.victorruoshui.co.kr
이자료는 저작권법에 따라 보호받는 저작물이므로 무단배포 및무단복제를 금하며, 내용의 전부 또는 일부를 이용하려면, 반드시 한국 VictorRuoshui 社의서면동의를 받아야 합니다.
VR-6243
DIGITALMULTIMETER 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. SAFETYNOTE
The meter meets the standards of IEC1010. Read the operation
manual carefully before operation.
1．Do not input DC Voltage orAC 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．Removethe test leads when changing function and range.
4．To select correct function and range, bewareof error operation.；
5．SAFETY SYMBOLS
“ ”THE OPERATOR MUST REFER TO THE MANUAL ，
“ ”LOWBATTERY.
3. CHARACTERISTIC
3-1．GENERAL
(1)．Displaying: LCD displaying.
(2)．Max. displaying: 1999（3 1/2 digit）auto polarity indication.
(3)．Measuring method: dual slopeA/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．TECHNICALCHARACTERISTIC
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=10-6H mH=10-3H
(2).CAPACITANCE(C)
PF=10-12F nF=10-9FuF=10-6F
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

www.victorruoshui.co.kr
이자료는 저작권법에 따라 보호받는 저작물이므로 무단배포 및무단복제를 금하며, 내용의 전부 또는 일부를 이용하려면, 반드시 한국 VictorRuoshui 社의서면동의를 받아야 합니다.
(3) Connect the alligator clips to the inductor leads.
(4) Read the display. The value is direct reading in the electrical
units (uH, H) indicated at the selected switch. If DISPLAY
show “1”. It indicates on Out-of-Range measurement. If the
display indicates one of more reading zeros, shift to the next
lower range scale to improve the resolution of the
measurement.
NOTE:
(a) If the inductance value is unmarked, start from the 2mH
range and keep increasing until the over range indication goes
off and a reading is obtained.
(b) Very low inductance measurement should be performed by
using extremely short leads in order to avoid introducing any
stray inductance.
(c) This instrument is not intended for determining the “Q”
factor for the inductor. Misleading readings may be obtained
if the measurement of the inductance of a resistor is
attempted.
(d) At range 2Mh,short –circuit the test leads,to measure the
inductance value ,then substracts it from the real
measurement .
4-4.CAPACITANCE(C) MEASURING PROCEDURE
(1) Set POWER switch to “ON” position.
(2) Select the range switch for the maximum expected
capacitance.
(3) Fully discharge any capacitors.
(4) Connect the alligator clips to the capacitor leads.
(5) Read the display. The value is direct reading in the electrical
unit (nF, uF) indicated at the selected range switch. If
DISPLAY show “1”, It indicate on Out-of-Range
measurement. If the display indicates one or more leading
zeros, shift to the next lower range scale to improve the
resolution of the measurement.
NOTE:
(a) If the capacitance value is unmarked, start from the 2nF
range and keep increasing until the over-range indication
goes off and a reading is obtained.
(b) A shorted capacitor will read over-range on all ranges. A
capacitance with low voltage leakage will read over range,
or a much higher value than normal.
An open capacitor will read zero on all ranges (possible a few
pF on 2nF range, due to stray capacitance of the instrument).
(c) Very low capacitance measurement should be performed by
using extremely short leads in order to avoid introducing any
stray inductance.
(d) When using the optioned test leads, remember that the leads
introduce a measurable capacitance to the measurement. As
a first approximation, the test capacitance did measured by
opening the leads at the trips, recording the open circuit
value and subtracting the value.
(e) Capacitors, especially electrolytic, often have notoriously
wide tolerances. Do not be surprised if the measured value is
greater than the value marked on the capacitor, unless it is a
close tolerance type. However, value is seldom drastically
below the rated value.
5. MAINTENANCE
DO NOT try to verify the circuit for it’s a precision meter.
1.Beware of waterproof, dustproof and shockproof.
2.Do not operate and store the meter in the circumstance of high
temperature, high humidity, and flammability, explosive and
strong magnetic field.
3.Use the damp cloth and soft solvent to clean the meter, do not
use abrasive and alcohol.
4. If do not operate it for a long time, should take out the battery.
5.When LCD displays “”symbol, should replace the
battery as below:
(a). Ensure the instrument is not connected to any external circuit.
Set the selector switch to OFF position and remove the test
leads from terminals.
(b). Remove the screw on the bottom case and lift the bottom
case.
(c). Remove the spent battery and replace it with a battery of the
same type.
FUSE REPLACEMENT
Use the same type fuse as specified.
1. Remove the screw on the back of the case.
2. Replace the fuse with a new one .
3. Reinstall the screw in the case bottom.
6. TROUBLE SHOOTING
If the meter does not work properly, check the meter as
following:
CONDITIONS
WAY TO SOLVE
NO DISPLAYING
●Power is off
●Replace battery
symbol displays
●Replace battery
NO CURRENT INPUT
●Replace fuse
BIG ERROR
●Replace battery
●The specifications are subject to change without
notice.
●The content of this manual is regarded as correct,
error or omits Pls. contact with factory.
●We hereby will not be responsible for the accident and
damage caused by improper operation.
●The function stated for this User Manual cannot be
the reason of special usage.
601E-6243-001A