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Input Resistance = 10MΩ on 1000V and 100V ranges;
CAUTION:
Maximum Input = 1010V peak
Input Impedance = 1MΩ and 100pF
CAUTION:
Maximum Input = 750V RMS or 1000V peak, 3
Figure 3-1
3.2.2
Crest factor
AC voltage and current accuracies are affected by the crest factor of the waveform, the ratio of the peak
value to the RMS value. Table 3-1 lists the fundamental frequencies at which the corresponding crest factor
must be taken into account for accuracy calculations.
Table 3-1
Crest Factor Limitations
3.3
Measuring Current
Model DMM current measurement range: 10mA, 100mA (DC only), 1A, 10A
Maximum resolution: 100nA (on 10 mA range)
Note:
See the previous discussion about crest factor in Voltage Measurement in this section
> 10GΩ on 10V, 1V and 100mV ranges
DC and AC Voltage Measurement Connections
Crest Factor
Fundamental Frequency
2
50kHz
3
3kHz
4-5
1kHz
×
7
10
V.Hz
ABM-4082
21
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