Introduction and Specifications
Electrical Specifications 1
1-37
5720A Series II AC Current Specifications: 95% Confidence Level
Absolute Uncertainty
±5 °C from calibration temperature
[1]
Relative Uncertainty
±1 °C
24 Hours 90 Days 180 Days 1 Year 24 Hours 90 Days
Range Resolution
Frequency
(Hz)
± (ppm output + nA)
220 µA
1 nA
10 - 20
20 - 40
40 - 1 k
1k - 5 k
5k - 10 k
210 + 16
130 + 10
100 + 8
240 + 12
800 + 65
230 + 16
140 + 10
110 + 8
250 + 12
900 + 65
240 + 16
150 + 10
115 + 8
270 + 12
1000 + 65
250 + 16
160 + 10
120 + 8
280 + 12
1100 + 65
210 + 16
110 + 10
80 + 8
200 + 12
700 + 65
230 + 16
130 + 10
90 + 8
230 + 12
800 + 65
2.2 mA 10 nA
10 - 20
20 - 40
40 - 1 k
1k - 5 k
5k - 10 k
210 + 40
140 + 35
100 + 35
170 + 110
800 + 650
230 + 40
140 + 35
110 + 35
180 + 110
900 + 650
240 + 40
150 + 35
115 + 35
190 + 110
1000 + 650
250 + 40
160 + 35
120 + 35
200 + 110
1100 + 650
210 + 40
110 + 35
80 + 35
200 + 110
700 + 650
230 + 40
130 + 35
90 + 35
230 + 110
800 + 650
22 mA 100 nA
10 - 20
20 - 40
40 - 1 k
1k - 5 k
5k - 10 k
210 + 400
130 + 350
100 + 350
170 + 550
800 + 5000
230 + 400
140 + 350
110 + 350
180 + 550
900 + 5000
240 + 400
150 + 350
115 + 350
190 + 550
1000 + 5000
250 + 400
160 + 350
120 + 350
200 + 550
1100 + 5000
210 + 400
110 + 350
80 + 350
200 + 550
700 + 5000
230 + 400
130 + 350
90 + 350
230 + 550
800 + 5000
± (ppm output + µA)
220 mA
1 µA
10 - 20
20 - 40
40 - 1 k
1k - 5 k
5k - 10 k
210 + 4
130 + 3.5
100 + 2.5
170 + 3.5
800 + 10
230 + 4
140 + 3.5
110 + 2.5
180 + 3.5
900 + 10
240 + 4
150 + 3.5
115 + 2.5
190 + 3.5
1000 + 10
250 + 4
160 + 3.5
120 + 2.5
200 + 3.5
1100 + 10
210 + 4
110 + 3.5
80 + 2.5
200 + 3.5
700 + 10
230 + 4
130 + 3.5
90 + 2.5
230 + 3.5
800 + 10
2.2 A
10 µA
20 - 1 k
1 k - 5 k
5 k - 10 k
230 + 35
350 + 80
5000 + 160
240 + 35
390 + 80
6000 + 160
250 + 35
420 + 80
6500 + 160
260 + 35
450 + 80
7000 + 160
250 + 35
400 + 80
5000 + 160
300 + 35
440 + 80
6000 + 160
5725A Amplifier:
11 A
100 µA
40 - 1 k
1 k - 5 k
5 k - 10 k
370 + 170
800 + 380
3000 + 750
400 + 170
850 + 380
3300 + 750
440 + 170
900 + 380
3500 + 750
460 + 170
950 + 380
3600 + 750
300 + 170
700 + 380
2800 + 750
330 + 170
800 + 38
3200 + 750
Note:
Maximum output from the calibrator’s terminals is 2.2 A. Uncertainty specifications for 220 µA and 2.2 mA ranges are increased by 1.3
plus 2 µA when supplied through 5725A terminals. For the 5720A 220 µA range, 1 kHz through 5 kHz and 5 kHz through 10 kHz, when
the output is coming from the AUX current terminal, use the 5700A Absolute Uncertainty Specifications. Specifications are otherwise
identical for all output locations.
1. For fields strengths >0.4 V/m but ≤3 V/m, add 1 % of range.