5 Characteristics and Specifications
Electrical Specifications
108 U1231A/U1232A/U1233A User’s Guide
AC specifications
Tab le 5- 2 AC specifications
Function Range Resolution
Accuracy Burden voltage
45 Hz to 500 Hz 500 Hz to 1 kHz (where applicable)
Voltage
600 mV 0.1 mV 1.0% + 3 2.0% + 3 -
6 V 0.001 V 1.0% + 3 2.0% + 3 -
60 V 0.01 V 1.0% + 3 2.0% + 3 -
600 V 0.1 V 1.0% + 3 2.0% + 3 -
600 V (VZ
LOW
)
[3]
0.1 V 2.0% + 3 4.0% + 3 -
Notes for true rms AC voltage specifications:
1 Overload protection: 600 Vrms. For millivolt measurements, 600 Vrms for short circuits with <0.3 A current.
2 Input impedance: 10 MΩ (nominal) in parallel with <100 pF.
3 VZ
LOW
input impedance: 3 kΩ (nominal).
Current
[1]
60 μA
[2]
0.01 μA 1.5% + 3 - <2.5 V
600 μA
[2]
0.1 μA 1.5% + 3 - <2.5 V
6 A
[3][5]
0.001 A 1.5% + 3 - <0.2 V
10 A
[3][4]
0.01 A 1.5% + 3 - <0.4 V
Notes for AC current specifications:
1 AC current measurement not available for U1231A model.
2 Overload protection for 60 μA to 600 μA range: 600 Vrms for short circuits with <0.3 A current.
3 Overload protection for 6 A to 10 A range: 11 A/1000 V; 10 × 38 mm fast-acting fuse.
4 Specification for 10 A range: 10 A continuous. Add 0.3% to the specified accuracy when measuring signals >10 A to 20 A
for 30 seconds maximum. After measuring currents >10 A, cool down the multimeter for twice the duration of the
measured time before proceeding with low current measurements.
5 AC current range of 0.6 mA to 300 mA is not measureable on the U1232A and U1233A models.
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