Calibration
Introduction 5
5-9
Table 5-3. 2 Amp Range Verification (cont.)
5720A
Output
8508A
ACV
filter
8508A
Input
A40B
Measured
Error (%)
Product
Specification
(99 %)
Measurement
uncertainty
(99 %)
TUR
-2 Vdc - Front 2 A ±0.0150 % ±0.0030 % 5.0:1
0.56 V, 10 Hz 10 Rear 2 A - Reference level
1.4 V, 10 Hz 10 Front 2 A ±0.1150 % ±0.0051 % 23:1
0.8 V, 57 Hz 40 Rear 2 A - Reference level
2 V, 57 Hz 40 Front 2 A ±0.0850 % ±0.0037 % 23:1
0.8 V, 300 Hz 100 Rear 2 A - Reference level
2 V, 300 Hz 100 Front 2 A ±0.1000 % ±0.0037 % >25:1
0.8 V, 1 kHz 100 Rear 2 A - Reference level
2 V, 1 kHz 100 Front 2 A ±0.1700 % ±0.0037 % >25:1
0.8 V, 3 kHz 100 Rear 2 A - Reference level
2 V, 3 kHz 100 Front 2 A ±0.9000 % ±0.0040 % >25:1
0.8 V, 6 kHz 100 Rear 2 A - Reference level
2 V, 6 kHz 100 Front 2 A ±0.2600 % ±0.0040 % >25:1
0.8 V, 10 kHz 100 Rear 2 A - Reference level
2 V, 10 kHz 100 Front 2 A ±6.0000 % ±0.0040 % >25:1
20 Amp Range Verification
1. Push S on the Product and the 5720A.
2. Connect the 20 A shunt between the output of the Product and the DMM front input.
3. Set the DMM to front input.
4. Push C on the Product.
5. Set the 5720A output to +1 V dc.
6. Push M on the 5720A and the Product.
7. Let the measurement become stable for a minimum of one minute and then record the
measured error in Table 5-3.
8. Set the DMM ‘m’ store to the 20 A shunt correction factor.
9. Set the DMM ‘-c’ and ‘÷z’ stores to 0.4.
10. Turn on the ‘*m’, ‘-c’ and ‘÷z’, and % math functions on the DMM.
11. Set the DMM to front input.
12. Set the DMM ‘-c’ and ‘÷z’ stores to 0.4.
13. Set the 5720A output to -1 V dc.
14. Set the DMM ‘-c’ and ‘÷z’ stores to 0.8.
15. Turn on the ‘*m’, ‘-c’ and ‘÷z’, and % math functions on the DMM.
16. Set the 5720A output to the values in Table 5-4 for the +2 V dc and -2 V dc
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