Manual

DUAL DISPLAY DIGITAL MULTIMETER
USER MANUAL
8
Protection
500μA,5mA,50mA,500mA,2A 5 ranges fuse protection.
20A range no fuse,15 seconds max.
When the input exceeds the full scale of the selected range, the display will appea
r
“—OL—“ of over-range indication.
5. TRUE RMS AC OR AC+DC CURRENT
Accuracy Between 2% of range and full range.
RANGE 20Hz-45Hz 45Hz-2kHz 2kHz-10kHz 10kHz-20kHz
500μA 1%+15 0.5%+15 1%+15 2%+15
5mA 1%+15 0.5%+15 1%+15 2%+15
50mA 1%+15 0.5%+15 1%+15 2%+15
500mA 1%+15 0.5%+15
—————————
2A 1%+15 0.5%+15
—————————
20A 1%+15 0.5%+15
—————————
Protection
500μA,5mA,50mA,500mA,2A 5 ranges fuse protection.
20A range no fuse,15 seconds max.
Crest Factor Ran
g
e
3.0 at full scale.
The burden voltage is the same as the DC current.
When the input exceeds the full scale of the selected range, the display will appea
r
“—OL—” of over-range indication.
6. FREQUENCY MEASUREMENT AT ACA RANGE
RANGE FREQUENCY INPUT LEVEL (SINE WAVE) ACCURACY
500μA
10Hz ~ 20kHz
≧ 90μA
0.05%+1
5mA 10Hz ~ 20kHz
≧ 0.9mA
0.05%+1
50mA 10Hz ~ 20kHz
≧ 9mA
0.05%+1
500mA 10Hz ~ 20kHz
≧ 90mA
0.05%+1
2A 10Hz ~ 2kHz
≧ 1A
0.05%+1
20A 10Hz ~ 2kHz
≧ 9A
0.05%+1
AC+DC measurement does not support AC+Hz function.
DUAL DISPLAY DIGITAL MULTIMETER
USER MANUAL
9
7.RESISTANCE
RANGE RESOLUTION ACCURACY
500Ω 0.01Ω
0.1%+4
5kΩ 0.1Ω
0.1%+2
50kΩ 1Ω
0.1%+2
500kΩ 10Ω
0.1%+2
5MΩ 100Ω
0.2%+2
20MΩ 1kΩ
0.3%+2
Open-circuit Voltage
3.2 volts maximum on 500Ω, 1.3 volts maximum on all other
ranges.
Protection 450V dc or peak ac continuous.
8. CAPACITANCE
RANGE: RESOLUTION ACCURACY
5n * 0.001n
≧1nF: 2%+10
<1nF & ≧0.5nF: 2%+20
50n 0.01n
≧10nF: 2%+10
<10nF & ≧5nF: 2%+30
500n 0.1n 2%+4
5μ
1n 2%+4
50μ
10n 2%+4
*5n range tends to be interfered by the test lead’s impedance and position. For the
accuracy, please measure the range on the input terminal directly.
Protection
450V dc or peak ac continuous.
9. DIODE CHECK
Description
Display read forward voltage of diode.
Open Voltage
3.1V approx.
Maximum Forward
Voltage
1.5V
Protection
450V dc or peak ac continuous.