Datasheet

6
Electrical Specications
Specication assumptions:
Accuracy is given as ± (% of reading + counts of least significant digit) at 23 °C ± 5 °C, with relative humidity less than 80% RH. AC voltage and AC
current specifications for U1193A and U1194A are AC coupled, true rms and are valid from 5% of range to 100% of range. The crest factor may be
up to 3.0 at 4,000 counts. For non-sinusoidal waveforms, add additional accuracy of (2% reading + 2% full scale) typically. In the EMC RF field of 3
V/m, total accuracy is specified as specified accuracy + 30 digits for all functions.
DC specications
Function Range Resolution
Accuracy
U1191A U1192A U1193A U1194A
Voltage
60 V 0.01 V — 0.5% + 3 0.5% + 3 0.5% + 3
600 V 0.1 V 0.5% + 3 0.5% + 3 0.5% + 3 0.5% + 3
Resistance
600 Ω 0.1 Ω 0.8% + 5 0.8% + 5 0.8% + 5 0.8% + 5
6 kΩ 0.001 kΩ 0.8% + 3 0.8% + 3 0.8% + 3 0.8% + 3
60 kΩ 0.01 kΩ — 0.8% + 3 0.8% + 3 0.8% + 3
Diode
1.5 V 0.001 V 1.0% + 3 1.0% + 3 1.0% + 3 1.0% + 3
Current
60 µA 0.01 µA — — — 1.0% + 5
600 µA 0.1 µA — — — 1.0% + 5
60 A 0.01 A — — — 2.0% + 5
600 A 0.1 A — — — 2.0% + 5
Notes for DC voltage specification:
1. Input impedance of 10 MΩ.
Notes for resistance specifications:
1. Overload protection: 600 Vrms for short circuits with < 0.1 mA current.
2. Maximum open voltage is < 1.4 V.
3. The accuracy is specified after the Relative function is used to subtract the test lead resistance and thermal effect (by shorting the test
leads).
Notes for diode specifications:
1. Overload protection: 600 Vrms for short circuits with < 0.4 mA current.
2. Maximum open voltage is 1.8 V.
3. Built-in buzzer beeps continuously when the voltage measured is less than 100 mV and beeps once for forward-biased diode or semicon-
ductor junctions measured between 0.3 and 0.8 V (0.3 V ≤ reading ≤ 0.8 V).
Notes for DC current specifications:
1. DC current measurement is only available for U1194A model.
2. 60 to 600 A ranges are from clamp current measurement. 60 to 600 µA ranges are from digital multimeter measurement.
3. Overload protection for 60 to 600 A range: 600 Arms.
4. Position error: 1% from reading.
5. Use Relative mode to zero residual offset.