Introduction and Specifications
Electrical Specifications 1
1-33
1-32. DC Current Specifications
5720A Series II DC Current Specifications
Absolute Uncertainty
±5 °C from calibration temperature
[2]
Relative Uncertainty ±1 °C
Resolution
24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days
Range
nA
± (ppm output + nA)
99 % Confidence Level
220 µA
2.2 mA
22 mA
0
1
10
40 + 7
30 + 8
30 + 50
42 + 7
35 + 8
35 + 50
45 + 7
37 + 8
37 + 50
50 + 7
40 + 8
40 + 50
24 + 2
24 + 5
24 + 50
26 + 2
26 + 5
26 + 50
µA
± (ppm output + µA)
220 mA
[1]
2.2 A
[1]
0.1
1
40 + 0.8
60 + 15
45 + 0.8
70 + 15
47 + 0.8
80 + 15
50 + 0.8
90 + 15
26 + 0.3
40 + 7
30 + 0.3
45 + 7
5725A Amplifier:
11 A 10 330 + 470 340 + 480 350 + 480 360 + 480 100 + 130 110 + 130
95 % Confidence Level
nA
± (ppm output + nA)
220 µA
2.2 mA
22 mA
0.1
1
10
32 + 6
25 + 7
25 + 40
35 + 6
30 + 7
30 + 40
37 + 6
33 + 7
33 + 40
40 + 6
35 + 7
35 + 40
20 + 1.6
20 + 4
20 + 40
22 + 1.6
22 + 4
22 + 40
µA
± (ppm output + µA)
220 mA
[1]
2.2 A
[1]
0.1
1
35 + 0.7
50 + 12
40 + 0.7
60 + 12
42 + 0.7
70 + 12
45 + 0.7
80 + 12
22 + 0.25
32 + 6
25 + 0.25
40 + 6
5725A Amplifier:
11 A 10 330 + 470 340 + 480 350 + 480 360 + 480 100 + 130 110 + 130
Note:
Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 mA and 2.2 mA ranges are increased
by a factor of 1.3 when supplied through 5725A terminals.
Specifications are otherwise identical for all output locations.
1. Add to uncertainty specifications:
±200 x I
2
ppm for >100 mA on 220 mA range
±10 x I
2
ppm for >1 A on 2.2 A range
2. For fields strengths >0.4 V/m but ≤3 V/m, add 1 % of range.