Characteristics and Specifications 5
Electrical Specifications
U1231A/U1232A/U1233A User’s Guide 105
Electrical Specifications
DC specifications
Specification assumptions are given on page 103.
Tab le 5- 1 DC specifications
Function Range Resolution
Accuracy
Tes t
current
Burden
voltage
Input
impedance
U1231A U1232A U1233A (where applicable)
Voltage
600 mV
[1]
0.1 mV 0.5% + 2 0.5% + 2 0.5% + 2 - - 11.18 MΩ
6 V 0.001 V 0.5% + 2 0.5% + 2 0.5% + 2 - - 11.18 MΩ
60 V 0.01 V 0.5% + 2 0.5% + 2 0.5% + 2 - - 10.1 MΩ
600 V 0.1 V 0.5% + 2 0.5% + 2 0.5% + 2 - - 10 MΩ
600 V
(VZ
LOW
)
[2]
0.1 V 2% + 3 2% + 3 2% + 3 - - 3 kΩ
Notes for DC voltage specifications:
1 The accuracy of the 600 mV range is specified after the Null function is used to subtract the thermal effect (by shorting the
test leads).
2 For VZ
LOW
(low input impedance) measurements, autoranging is disabled and the multimeter’s range is set to 600 V in the
manual ranging mode.