CEN-TECH ITEM 98674 Operation Manual page 9

DIGITAL MULTIMETER
3.2.2 AC Voltage
Range Resolution
400mV 0.1mV
4V 1mV
40V 10mV
400V 100mV
750V 1V
- Input Impedance: 10M
- Overload protection:
400mV range: 250V DC or rms AC,
4V-750V ranges: 1000V DC or rms 750V AC.
- Max. input voltage: 1000V DC or rms 750V AC
- Frequency range: 40 to 400Hz
- Response: average, calibrated in rms of sine wave
NOTE:
At small voltage range, unsteady readings will appear before
the test leads contact the circuit. This is normal because
the meter is highly sensitive. When the test leads contact
the circuit, the true reading will be shown.
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SPECIFICATION NTS
Accuracy
(0.8% of reading + 3 digits)
(1.0% of reading + 3 digits)
DIGITAL MULTIMETER
3.2.3 DC Current
Range Resolution
400 A 0.1 A
4000 A 1 A
40mA 10 A （
400mA 100 A
4A 1mA
10A 10mA （
- Overload protection:
A 、 m A ranges: resettable fuses F1 500mA/250V
10A range: F2 10A/250V fuse (quick acting).
- Max. input current:
mA jack （ A ranges ） : 4mA,
mA jack （ m A ranges ） : 400mA,
10A jack: 10A
- voltage drop
：
400 A ranges: 40mV,
4000 A ranges: 400mV,
40mA ranges: 40mV,
400mA ranges: 400mV,
4A range: 40mV
10A range: 100Mv
SPECIFICATION NTS
Accuracy
1 .2% of reading + 3 digits ）
2 .0% of reading + 10 digits ）
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