Keysight U1272A - AC Specifications; Table 5-2 U1271 A True Rms AC Voltage Specifications

Characteristics and Specifications 5
Electrical Specifications
U1271A/U1272A User’s Guide 161
AC specifications
AC specifications for U1271A
Table 5-2 U1271A true rms AC voltage specifications
Function Range Resolution
Accuracy
45 Hz to 65 Hz
30 Hz to 45 Hz
1 kHz to 5 kHz
5 kHz to
20 kHz
65 Hz to 1 kHz
Voltage
300 mV 0.01 mV 0.7% + 20 1.0% + 25 2.0% + 25 2.0% + 40
3 V 0.0001 V 0.7% + 20 1.0% + 25 2.0% + 25 2.0% + 40
30 V 0.001 V 0.7% + 20 1.0% + 25 2.0% + 25 2.0% + 40
300 V 0.01 V 0.7% + 20 1.0% + 25 2.0% + 25 -
1000 V 0.1 V 0.7% + 20 1.0% + 25 - -
LPF (low pass filter) enabled,
applicable for all voltage ranges
and resolution
0.7% + 20
1.0% + 25
@ <200 Hz
5.0% + 25
@ <440 Hz
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Notes for U1271A AC voltage specifications:
1 Overload protection: 1000 Vrms. For millivolt measurements, 1000 Vrms for short circuits with <0.3 A current.
2 Input impedance: 10 MΩ (nominal) in parallel with <100 pF.