Aktakom AM-1083 Руководство пользователя - Страница 3
Просмотреть онлайн или скачать pdf Руководство пользователя для Мультиметр Aktakom AM-1083. Aktakom AM-1083 5 страниц. Digital multimeter
Печатать страницу20mA
200mA
±(2.0%+5)
20A
±(3.0%+10)
MAX measurement voltage drop: 200mV;
Max input current: 20A (no more than 10 seconds);
Over load protection: 0.2A / 250V self-healing fuse for ranges under
200mA, 12A / 250V quick acting fuse for range 20A.
Frequency response: 40~200Hz;
Display: Sine wave virtual value (AVG value response).
2-3-5. Resistance (Ω)
Accuracy
Range
200Ω
2kΩ
20kΩ
200kΩ
2MΩ
20MΩ
±(1.0%+15)
2000MΩ
±[5%(reading –10 )+ 20]
Open circuit voltage: lower than 3V;
Over load protection: 250V DC or AC peak value;
Caution: a) If in range 200Ω, please short pencils and measure lead
resistance, and then subtract the resistance from the value
measured.
b)
It is normal to show 10MΩ when pencils shorted in range
2000MΩ, it will not effect the accuracy and shall be subtracted from
the value measured. For example: The object resistance is 1000MΩ,
the reading value is 1010MΩ, then the correct value shall be 1010 –
10 = 1000MΩ.
c) Lagged showing of value is normal when measuring resistance
higher than 1MΩ. Please wait until the display is stable.
2-3-6. Capacitance (C)
Accuracy
Range
20nF
±(2.5%+20)
200nF
2uF
20uF
200uF
±(5.0%+5)
Testing frequency: 100Hz;
Over load protection: 36V DC or AC peak value;
2-3-7. Inductance (L)
Range
2mH
20mH
200mH
2H
20H
Testing frequency: 100Hz;
Over load protection: 36V DC or AC peak value;
2-3-8. Temperature ( )
Range
(-20 ~ 1000)
Thermocouple (plug of banana type).
2-3-9. Frequency (f)
10uA
100uA
10mA
Resolution
±(0.8%+5)
±(0.8%+3)
Resolution
10pF
100pF
10nF
100nF
Resolution
Accuracy
10uH
±( 2.5%+20)
100uH
1mH
10mH
Accuracy
Resolution
±(1.0%+4) < 400
±(1.5%+15) ≥ 400
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200kHz
2000kHz
10MHz
Input sensitivity: higher than 3.5V
Over load protection: 250V DC or AC peak value(less than 10
seconds);
2-3-10. Diode and open circuit test
Range
0.1Ω
1Ω
10Ω
100Ω
1kΩ
10kΩ
1MΩ
Over load protection: 250V DC or AC peak value;
Warning: Never input voltage in this range.
2-3-11 Measuring triode's hFE parameter
h
, NPN or PNP
FE
V. Operation method
5-1. Operation panel introduction
1. LCD: display the measured value and the unit;
2. Function keys
2-1. Power switch: turn on /turn off power;
2-2. PK HOLD: Pressing this key will hold all max value measured in
the screen showing sign "PH"; press again, "PH" will disappear and
exit the status of peak value holding.
2-3. B/L switch to enable backlight which will be turned off auto after
about 5 seconds.
1nF
2-4. DC/AC: select DC/AC working mode.
3. Rotary switch: to change measurement function and range;
4. Jack for measurement of voltage, resistance and frequency;
5. Common ground: positive input for capacitance (Cx), inductance (Lx),
triode and temperature.
6. Positive jack for current lower than 200mA; negative input for
1uH
capacitance (Cx), inductance (Lx), triode and temperature.
7. Jack for current 20A.
Please refer to the figure:
5-2. Voltage measurement
1. Insert the black pencil into the
"COM" jack, and the red one into
the "V/Ω/Hz" jack;
2. Turn the switch to position
"V". If the level of voltage
to be measured is unknown
then select the biggest range
1
and then decrease the range
step by step until getting the value with the highest resolution.
3. Popup the key "DC/AC" to enter into DC mode if measuring DC;
Press down the key "DC/AC" to set into AC mode.
Accuracy
Range
2kHz
20kHz
±(0.5%+4)
V
P-P
Value displayed
Diode forward voltage
drop (Unit: mV)
Buzzer
sounds
continuously, resistance
between two test points
is less than 70Ω±20Ω.
Display
Range
range
0 ~ 1000
Resoluti
on
1Hz
10Hz
100Hz
1KHz
10KHz
;
Test condition
Forward DC: about
1mA,
reverse
voltage: about 3V.
Open circuit voltage
is about 3V.
Test condition
base electrode current is
about 10uA, and Vce is
about 3V