Vichy VC99 User Manual

User's manual for VC99 3 6/7 DMM
1.SUMMARY
This digital multimeter is a steady performance, battery-driven 3 6/7 digital multimeter.
It uses the LCD with 23mm-high figure to make the reading clear and make operation more
convenient.
The digital multimeter has the function of measuring DCV, ACV, DCA, ACA, resistance,
capacitance, frequency, temperature, duty cycle, transistor and diode, continuity performance
test .The meter can provide functions including analog bar and unit symbol display, data
holding, relative value measuring, maximal/minimal value measuring, auto/manual range
switching (RANGE), auto power off and warning functions .it adopts double integral A/D
converter as its core. It is an ideal tool for labs, factories and radio-technology.
2.SAFTY NOTES：
The instrument is designed according to IEC1010 standard (safety standard issued by
International Electro technical Committee). Please read the following before operation.
1-1.Check the connection and insulation of test leads to avoid electric shock.
1-2.Do not input a limited voltage higher than DC 1000V or AC 750V when measuring ranges.
1-3.When measuring voltage higher than DC 60V, AC 40V, please be careful.
1-4. Select correct function and range to avoid fault operation.
1-5.Please move the test leads away from test points when switching the function.
1-6.Please don't input voltage value when measuring current.
1-7.Please don't modify the circuit.
1-8.Introduction for safety symbol:
" " exists high voltage; " " GND " " dual insulation "
manual " " Low battery.
3. SPECIFICATION
1. General features
1-1. Displaying: LCD;
1-2.Max display: 6000(3 6/7) digits automatic polarity, unit symbol and 61 section analog
display;
1-3. Measurement method: double integral A/D conversion;
1-4. Sampling rate: approx.3 times/sec.
1-5. Over-range display: "OL" displayed in the highest digit.
"
1-6. Low battery display："
1-7. Working environment: (0～40)℃, relative humidity: <80%;
1-8.Store environment: (-10～40)℃, relative humidity: <80%;
1-9.Power supply：2pcs 1.5V battery（"AAA"7# battery） ；
1-10. Dimension: 185×93×35mm (length*width*height);
1-11. Weight: approx..290g（(including battery)；
1-12.Accessories: test leads, user manual, temperature probe, holster, gift box, and 2*1.5V
battery.
2. TECHNICAL FEATURES
2-1. Accuracy: ± (a% × reading data + digits), environment temperature at (23±5) ℃, relative
humidity<75%, One year guarantee since production date.
2-2.DC Voltage（DCV）
Range
600mV
6V
60V
600V
1000V
Input impedance: approx. 10MΩ
Overload protection：1000V DC or 750V AC.
2-3.AC Voltage（ACV）
Range
6V
60V
600V
750V
Input impedance: approx. 10MΩ
" must refer to
Overload protection：1000V DC or 750V AC.
Frequency response:（40～200）Hz under 750V ,other range:(40～400）Hz.
Sine wave RMS(Average value response).
2-4.DC Current（DCA）
Range Accuracy
600uA
6000uA
60mA
600mA
6A
Accuracy Resolution
0.1mV
1mV
±(0.5%+3)
10mV
100mV
±(0.8%+3) 1V
Accuracy Resolution
1mV
±(0.8%+5) 10mV
100mV
±(1.0%+5) 1V
Resolution
0.1μA
1μA
±(1.0%+3)
10μA
100μA
±(2.0%+5) 1mA
20A
MAX measurement voltage drop:：full range mA :300mV，A:100mV。
Max input current: 20A (within 15 seconds)
Over load protection: 500mA/ 250V and 13A/250V
fast molten fuse.
2-5.AC Current（ACA）
Range Accuracy
600uA
6000uA
±(1.2%+5)
40mA
600mA
6A
±(2.0%+15)
20A
MAX measurement voltage drop:：full range mA :400mV，A:200mV。
Max input current: 20A (within 15 seconds)
Over load protection: 500mA/ 250V and 13A/250V
fast molten fuse.
Frequency response： ：20A range:40～100Hz,other range:40～400Hz。
2-6.Resistance（Ω）
Range Accuracy
600Ω ±(0.8%+5)
6kΩ
60kΩ
±(0.8%+3)
600kΩ
6MΩ
60MΩ ±(1.2%+5)
Open circuit voltage:：600mV
Over load protection: 250V DC or AC peak value;
NOTE: At range 600 Ω, short-circuit the test leads to measure the wire resistance and then
subtracts it from the real measurement. Or press ""REL" to clear the wire resistance and read
the value directly.
2-7.CAPACITANCE（C）
RANGE ACCURACY
40nF ±(2.5%+6)
400nF
4μF
±(2.5%+5)
40μF
400μF
±(5.0%+8)
2000μF
Overload protection :250V DC or AC peak value.
10mA
Resolution
0.1μA
1μA
10μA
100μA
1mA
10mA
Resolution
0.1Ω
1Ω
10Ω
100Ω
1kΩ
10kΩ
RESOLUTION
10pF
100pF
1nF
10nF
100nF
1uF