User`s guide

Characteristics and Specifications 5
Electrical Specifications
U1231A/U1232A/U1233A User’s Guide 113
For current measurements
Scale transfer (mV)
Table 5 - 7 Frequency sensitivity and trigger level specifications for current measurements
Input range Minimum sensitivity (rms sine wave)
Maximum input for specified
accuracy
[1]
45 Hz to 5 kHz
U1232A U1233A
60 μA30 μA30 μA
600 μA30 μA30 μA
6 A 0.5 A 0.5 A
10 A 0.5 A 0.5 A
Notes for frequency sensitivity specifications for current measurements:
1 Maximum input for specified accuracy, refer to “AC specifications” on page 109.
Table 5 - 8 Scale transfer (mV) specifications
Range Resolution
Accuracy
U1231A U1232A U1233A
DC 600 mV 0.1 mV 0.5% + 2
[2]
0.5% + 2
[2]
0.5% + 2
[2]
AC 600 mV 0.1 mV
1.0 % + 3
@ 45 Hz to 500 Hz
1.0 % + 3
@ 45 Hz to 500 Hz
1.0 % + 3
@ 45 Hz to 500 Hz
2.0 % + 3
@ 500 Hz to 1 kHz
2.0 % + 3
@ 500 Hz to 1 kHz
2.0 % + 3
@ 500 Hz to 1 kHz
Notes for scale transfer (mV) specifications:
1 Overload protection: 600 Vrms for short circuits with <0.3 A current.
2 The accuracy of the DC 600 mV range is specified after the Null function is used to subtract the thermal effect (by
shorting the test leads).
3 Input impedance: 10 MΩ (typical)