U2741A Datasheet, PDF (5/11 Pages) Keysight Technologies – USB Modular Digital Multimeter

05 | Keysight | U2741A USB Modular Digital Multimeter - Data Sheet
AC accuracy for voltage ¹
AC specifications
Function
Voltage ²
Range
100.000 mVrms
1.00000 V
10.0000 V
100.000 V
250.000 V ⁴
Function
Temperature
coefficient
Range
100.000 mVrms
1.00000 V
10.0000 V
100.000 V
250.000 V
Function
Current ⁵
Range
10.0000 mA
100.000 mA
1.00000 A
2.00000 A
Accuracy input ±(% of reading + % of range)
Frequency (Hz)
20 ~ 45
45 ~ 10k
10k ~ 30k
1 + 0.1
0.2 + 0.1
1.5 + 0.3
1 + 0.1
0.2 + 0.1
1.0 + 0.1
1 + 0.1
0.3 + 0.1
1.0 + 0.1
1 + 0.1
0.3 + 0.1
1.0 + 0.1
1 + 0.1
0.3 + 0.1
1.0 + 0.1
Frequency (Hz)
(% of reading + % of range)
20 ~ 45
45 ~ 10k
10k ~ 30k
0.02 + 0.02
0.02 + 0.02
0.05 + 0.02
30k ~ 100k ³
5.0 + 0.3
3.0 + 0.2
3.0 + 0.2
3.0 + 0.2
3.0 + 0.2
30k ~ 100k
0.1 + 0.02
Burden voltage,
Current shunt
resistance
< 0.2 V, 10 Ω
< 0.2 V, 1 Ω
< 0.3 V, 0.1 Ω
< 0.8 V, 0.1 Ω
Accuracy input ±(% of reading + % of range)
Frequency (Hz)
20 ~ 45
45 ~ 1k
1k ~ 10k
1.5 + 0.1
0.5 + 0.1
2 + 0.2
1.5 + 0.1
0.5 + 0.1
2 + 0.2
1.5 + 0.1
0.5 + 0.1
2 + 0.2
1.5 + 0.1
0.5 + 0.1
2 + 0.2
Function
Temperature
coefficient
Range
10.0000 mA
100.000 mA
1.00000 A
2.00000 A
Accuracy input ±(% of reading + % of range)
Frequency (Hz)
20 ~ 45
45 ~ 10k
0.02 + 0.02
0.02 + 0.02
10k ~ 30k
0.02 + 0.02
NOTE: To ensure better measurement results and to guard against the change of environment or setup, always enable the Null offset.
1. Specifications are based on 30 minutes warm-up time and calibration temperature within 18 °C to 28 °C. In manual range, the settling time is
2.6 seconds while in autorange, the first measurement accuracy is < 1%.
2. Specifications are for sine wave inputs more than 5% of range. 120% over range on all ranges except 250 VAC. Maximum crest factor of 5 at full
scale. Input impedance is 1 MΩ in parallel with capacitance less than 120 pF, AC couple with up to 300 VDC.
3. Additional error to be added as frequency more than 30 kHz and signal input less than 10% of range. 30 kHz to 100 kHz: add 0.003% of range per kHz.
4. Input signal has to be more than 50 Vrms.
5. Input protected with externally accessible 2 A, 250 V fast blown fuse.