Keysight U1271A - Table 5-5 U1272 A True Rms AC Current Specifications

5 Characteristics and Specifications
Electrical Specifications
164 U1271A/U1272A User’s Guide
Table 5-5 U1272A true rms AC current specifications
Function Range Resolution
Accuracy
Burden voltage
45 Hz to 65 Hz
20 Hz to 45 Hz
65 Hz to 2 kHz
Current
300 μA
[1]
0.01 μA 0.6% + 25 0.9% + 25 <0.04 V
3000 μA
[1]
0.1 μA 0.6% + 25 0.9% + 25 <0.4 V
30 mA
[1]
0.001 mA 0.6% + 25 0.9% + 25 <0.08 V
300 mA
[1][3]
0.01 mA 0.6% + 25 0.9% + 25 <1.00 V
3 A
[2]
0.0001 A 0.8% + 25 1.0% + 25 <0.1 V
10 A
[2][4]
0.001 A 0.8% + 25 1.0% + 25 <0.3 V
Notes for U1272A AC current specifications:
1 Overload protection for 300 μA to 300 mA range: 0.44 A/1000 V; 10 × 35 mm fast-acting fuse
2 Overload protection for 3 A to 10 A range: 11 A/1000 V; 10 × 38 mm fast-acting fuse
3 Specification for 300 mA range: 440 mA continuous.
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.