Ac Current (True Rms, Ac+Dc Coupling Mode); Resistance / Continuity; Table 6-7 Resistance Resolution, Full Scale Reading, And Accuracy [±(% Of Reading + Count)] - Agilent Technologies U3401A User's And Service Manual

6 Specifications and Characteristics

AC Current (true RMS, AC+DC Coupling mode)

Table 6-6 ACI resolution, full scale reading, and burden voltage [±(% of reading + count)]
ac+dc
Range Resolution
500 μA
10 nA
100 nA
5 mA
1 μA
50 mA
10 μA
500 mA
100 μA
5 A
1 mA
10 A
[1]
Typical at full scale reading and voltage across the input terminals.
[2]
In 10 A range, >10-20 Aac is readable for 20 seconds maximum with audio warning.
[3]
Input current > 35 μA RMS.
[4]
Accuracy specified at input >5% of range and >1 A for 10 A range except other specified.

Resistance / Continuity

Table 6-7 Resistance resolution, full scale reading, and accuracy [±(% of reading + count)]
Range
90
Maximum
reading
510.00
5.1000
51.000
510.00
5.1000
[2]
20.000
[1]
Resolution
500 Ω
10 mΩ
100 mΩ
5 kΩ
1 Ω
50 kΩ
10 Ω
500 kΩ
100 Ω
5 MΩ
1 KΩ
50 MΩ
[1]
In order to eliminate the noise interference, which might be induced to the test leads, it is
recommended to use a shielded test cable for measuring resistance above 500 KΩ.
[2]
Use relative operation. If relative operation is not used, add 0.2 Ω additional error.
Accuracy (One year; 23°C ± 5°C)
50 Hz to 2 kHz 2 kHz to 5 kHz 5 kHz to 20 kHz
0.5% + 30 1.5% + 60
0.5% + 30 1.5% + 50
0.5% + 30 1.5% + 50
0.5% + 30 1.5% + 50
0.5% + 40
(<1kHz)
Maximum reading
510.00
5.1000
51.000
510.00
5.1000
51.000
[4]
Burden voltage
and shunt resistor
<0.06 V/100 Ω
[3]
3% + 85
<0.6 V/100 Ω
3% + 70
<0.08 V/1 Ω
3% + 70
<0.8 V/1 Ω
3% + 70
<0.3 V/0.01 Ω
Not Specified
<0.6 V/0.01 Ω
Test current Accuracy (One year;
23°C ± 5°C)
0.5 mA
0.1% + 5
0.45 mA
0.1% + 3
45 μA
0.1% + 3
4.5 μA
0.1% + 3
450 nA 0.1% + 3
45 nA 0.3% + 3
U3401A User's and Service Guide
[1]
[2]
[2]