56 Chapter 3 Configuring for Measurements
OUTPUT 722;"DCI 10E-6"
Resistance The multimeter measures resistance by supplying a known current through
the unknown resistance being measured. The current passing through the
resistance generates a voltage across it. The multimeter measures this voltage
and calculates the unknown resistance (resistance = voltage/current). Table
14 shows each 2-and 4-wire ohms range and its full-scale reading (the full
scale reading also shows the maximum number of digits for each range).
Table 14 also shows the maximum resolution and current sourced for each
range. (Resolution is a function of the specified integration time: refer to
Setting the Integration Time later in this section for more information.)
Table 13: DC Current Ranges
DCI Range Full Scale Reading Maximum Resolution Shunt Resistor
lOOnA 120.000nA 1pA 545.2kW
1µA 1.200000µA 1pA 45.2kW
10µA 12.000000µA 1pA 5.2kW
100µA 120.00000µA 10pA 730W
1mA 1.2000000mA lOOpA 100W
10mA 12.000000mA 1nA 10W
100mA 120.00000mA 10nA 1W
1A 1.0500000A 100nA 0.1W
Figure 12. Current measurement connections
Table 14: Resistance Ranges
OHM(F) Range Full Scale Reading Maximum Resolution Current Sourced
10W 12.00000W 10mW 10mA
100W 120.00000W 10µW 1mA
1kW 1.2000000kW 100µW 1mA
10kW 12.000000kW 1mW l00µA
100kW 120.00000kW 10mW 50µA
1MW 1.2000000MW 100mW 5µA
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