Victor VC890D Operation Manual

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

The meter meets the standards of IEC1010. Read the operation manual carefully 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 battery case and back cover is not fixed.
2-6．Do not input voltage when measuring resistance.
2-7．Remove test leads from test point and turn off the power before replacing battery and fuse.
2-8．SAFETY SYMBOLS
" "EXISTS DANGEROUS VOLTAGE，" " GND，"
" "THE OPERATOR MUST REFER TO THE MANUAL ，"

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 slope A/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（NEDA1604/6F22 or 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 guaranteed from the production date.
3-2-2.ECHNICAL DATA
3-2-2-1.DCV
RANGE ACCURACY
200mV
2V
±(0.5%+3)
20V
200V
1000V ±(0.8%+10)
Input resistance:10MΩ for all ranges.
Overload protection: 250V DV or AC peak value at 200mV range.
3-2-2-2. ACV
RANGE
2V
20V
200V
750V
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
20uA
2mA
200mA
"DUAL INSULATION
20A
"LOW BATTERY
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
2mA
200mA
20A
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
200Ω
2kΩ
20kΩ
RESOLUTION
200kΩ
100uV
2MΩ
1mV
20MΩ
10mV
Open voltage: less than 0.7V
100mV
Overload protection: 250V DC and AC peak value
1V
NOTE: at 200Ω range, the test leads should be short-circuit, and measure the down-lead
1000V DC or AC peak value at other ranges.
ACCURACY RESOLUTION
1mV
±(0.8%+5) 10mV
100mV
±(1.2%+10) 1V
ACCURACY RESOLUTIO
N
±(0.8%+10) 10uA
1uA
±(1.2%+8) 100uA
±(2.0%+5) 10mA
ACCURACY RESOLUTIO
N
±(1.0%+15) 1uA
±(2.0%+5) 100uA
±(3.0%+10) 10mA
ACCURACY RESOLUTION
±(0.8%+5) 0.1Ω
1Ω
10Ω
±(0.8%+3)
100Ω
1kΩ
±(1.0%+25) 10kΩ
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
20nF
2uF ±(2.5%+20)
200uF ±(5.0%+10)
Overload protection: 36V DC or AC peak value
3-2-2-7.DIODE AND CONTINUITY TEST
Range Displaying value
Positive voltage drop of diode
Buzzer sounds , the resistance is
less than (70±20)Ω
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 Basic
0～1000
approx.10uA,Vce
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.
RESOLUTIO
N
10pF
1nF
100nF
Test condition
The positive DC current
is approx. 1mA，negative
voltage is approx. 3V
open voltage is approx.
3V
current is
is