Tenma 72-3530 - Measurement of DC Current; Measurement of AC Current

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• Input impedance is about 10MΩ.
• Display: true virtual value; range of accuracy guarantee: 10-100% of range (the
1000V range is 20~100%), it is allowed to have residual readings < 50 digits in
short circuit.
• AC wave peak factor can reach 3.0 in full-range value (excluding 750V range,
which is 1.5 in full-range value).
• Non-sinusoidal waveform: the accuracy will be increased by 3.0% if the wave peak
factor is within 1.0-2.0.
• The accuracy will be increased by 5.0% if the wave peak factor is within 2.0-2.5.
• The accuracy will be increased by 7.0% if the wave peak factor is within 2.5-3.0.
MEASUREMENT OF DC CURRENT
Range Resolution
Accuracy ± (a% of reading + b counts)
DC
Frequency
response
>10kHz-
20kHz
>20kHz-
100kHz
600.00µA 0.01µA ±(0.25% + 20)
AC+DC
±(1.5% + 20) ±(2% + 40)
6000.0µA 0.1µA ±(0.25% + 2) ±(1.5% + 20) ±(2% + 40)
60.000mA 1µA ±(0.15% + 10) ±(1.5% + 20) ±(2% + 40)
600.00mA 10µA ±(0.15% + 10) ±(1.5% + 20) ±(3% + 40)
6.0000A 100µA ±(0.5% + 10) ±(2.0% + 20) ±(6% + 40)
10.000A 1mA ±(0.5% + 2) ±(1.5% + 10) ±(5% + 40)
% (4-20mA) 0.01% ±(0.5% + 2)
• AC+DC, the specications are dened for signal input > 10% of range.
MEASUREMENT OF AC CURRENT
Range Resolution
Accuracy ± (a% of reading + b counts)
45Hz-1kHz >1kHz-20kHz >20kHz-100kHz
600.00µA 0.01µA ±(0.75% + 20) ±(1.2% + 40) ±(6.0% + 40)
6000.0µA 0.1µA ±(0.75% + 20) ±(1.2% + 40) ±(3.0% + 40)
60.000mA 1µA ±(0.75% + 20) ±(1.2% + 40) ±(9.0% + 40)
600.00mA 10µA ±(0.75% + 20) ±(1.5% + 10) ±(4.0% + 40)
6.0000A 100µA ±(1.5% + 20) ±(6.0% + 40)
Undened
10.000A 1mA ±(1.5% + 5) ±(5.0% + 10)
• Display: true virtual value.
• Range of accuracy guarantee: 10-100% of range. It is allowed to have residual
readings < 50 digits in short circuit.
• AC wave peak factor can reach 3.0 in full-range value.
• Non-sinusoidal waveform: the accuracy will be increased by 3.0% if the wave peak
factor is within 1.0-2.0.
• The accuracy will be increased by 5.0% if the wave peak factor is within 2.0-2.5.
• The accuracy will be increased by 7.0% if the wave peak factor is within 2.5-3.0.