OPERATION MANUAL
1. SUMMARIZE
The meter is a stable multimeter with 25mm LCD display, driven by battery. It's widely used on
measuring DCV, ACV, DCA, ACA, resistance, capacitance, diode, transistor, and continuity test.
It’s an ideal tool for lab, factory and family.
2. SAFETY NOTE
Themeter meets the standards of IEC1010. Read the operation manualcarefully before operation.
2-1．Do not input limit over-ranged.
2-2．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.
2-3．Remove the test leads when changing function and range.
2-4．To select correct function and range, beware of error operation.；
2-5．Do not operate the meter if batterycase and back cover is not fixed.
2-6．Do not input voltage when measuring resistance.
2-7．Remove test leads from test point and turnoff thepower before replacing battery and fuse.
2-8．SAFETYSYMBOLS
“ ”EXISTS DANGEROUSVOLTAGE，“ ” GND，“ ”DUALINSULATION
“ ”THE OPERATOR MUST REFER TO THE MANUAL ，“ ”LOW BATTERY
3. CHARACTERISTIC
3-1．GENERAL
3-1-1．Displaying:LCD displaying.
3-1-2．Max. displaying: 1999（3 1/2digit）auto polarity indication.
3-1-3．Measuring method:dual slopeA/D conversion.
3-1-4．Sampling rate: approx.3 times/second.
3-1-5．Overrange indication: the MSD displays“1” or“-1”.
3-1-6．Low battery indication:“ ” appears.
3-1-7．Operation environment:（0～40）℃，R.H.<80% .
3-1-8．Power：9V×1（NEDA1604/6F22or equivalent model）.
3-1-9．Size: 175×93×55mm
3-1-10．Weight: approx.400g（including battery）.
3-2.ECHNICAL CHARACTERISTIC
3-2-1.ccuracy:±(a%×rdg＋d) at (23±5)℃，R.H.<75%，one year guaranteedfrom the production date.
3-2-2.ECHNICAL DATA
3-2-2-1.DCV
RANGE ACCURACY RESOLUTION
200mV
±(0.5%+3)
100uV
2V 1mV
20V 10mV
200V 100mV
1000V ±(0.8%+10) 1V
Input resistance:10MΩ for all ranges.
Overload protection: 250V DV or AC peak value at 200mV range.
1000V DC or AC peak value at other ranges.
3-2-2-2. ACV
RANGE ACCURACY RESOLUTION
2V
±(0.8%+5)
1mV
20V 10mV
200V 100mV
750V ±(1.2%+10) 1V
Input resistance: 10MΩ
Overload protection: 1000V DC or AC peak value
Frequency response: ≤200Vrange: （40～400）Hz ，750V range:（40～200）Hz
Display: sine wave RMS (mean value response)
3-2-2-3.DCA
RANGE ACCURACY RESOLUTIO
N
20uA ±(0.8%+10) 10uA
2mA 1uA
200mA ±(1.2%+8) 100uA
20A ±(2.0%+5) 10mA
Max. input volt drop: 200mV
Max. input current: 20A（the test time should be in 10 seconds）
Overload protection: 0.2A/250V fast-blown fuse, 20A un-fused
3-2-2-4.ACA
RANGE ACCURACY RESOLUTIO
N
2mA ±(1.0%+15) 1uA
200mA ±(2.0%+5) 100uA
20A ±(3.0%+10) 10mA
Max. measuring volt drop: 200mV
Max. input current: 20A（the test time should be in 10 seconds）
Overload protection: 0.2A/250V fast-blown fuse, 20A un-fused
Frequency response: (40～200)Hz
Display: sine wave RMS (mean value response)
3-2-2-5. RESISTANCE（Ω）
RANGE ACCURACY RESOLUTION
200Ω ±(0.8%+5) 0.1Ω
2kΩ
±(0.8%+3)
1Ω
20kΩ 10Ω
200kΩ 100Ω
2MΩ 1kΩ
20MΩ ±(1.0%+25) 10kΩ
Open voltage: less than 0.7V
Overload protection: 250V DC and AC peak value
NOTE: at 200Ω range, the test leads should be short-circuit, and measure the down-lead
resistance, then, subtract from the real measuring.
WARNING: DO NOT input any voltage at resistance range for safety!
3-2-2-6. CAPACITANCE (C)
RANGE ACCURACY RESOLUTIO
N
20nF
±(2.5%+20)
10pF
2uF 1nF
200uF ±(5.0%+10) 100nF
Overload protection: 36V DC or AC peak value
3-2-2-7.DIODE AND CONTINUITY TEST
Range Displaying value Test condition
Positive voltage drop of diode
The positive DC current
is approx. 1mA，negative
voltage is approx. 3V
Buzzer sounds , the resistance is
less than (70±20)Ω
open voltage is approx.
3V
Overload protection: 250V DC or AC peak value
Warning: DO NOT input any voltage at this range for safety!
3-2-2-8. Triode hFE test
Range Display range Test condition
hFE NPN or PNP
0～1000
Basic current is
approx.10uA,Vce is
approx.3V
4. OPERATION
4-1 Front panel description
1. Model
2. LCD display
3. Shine diode
4 .range knob
5 .20A current jack
6.“-” pole jack for capacitance, temp. and test accessory and less than 200mA current test jack.
7.“+”pole jack for capacitance, temp. test accessory and GND.
8. “+”pole jack for volt, resistance and diode.
9. Transistor test jack
See the fig.
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