Appendix B: Verification
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
B-34
077114601 / March 2019
Check DC current readback accuracy (10 A and 1 A ranges)
Equipment required
AC power source
High current 18 AWG wire
DC voltmeter
High accuracy 0.05 Ω shunt
Current shunt resistor cabling
The 2281S has the following ranges to verify: 10 A, 1 A, 100 mA, and 10 mA range. Follow the
procedures described below to check the current readback accuracy on 10 A and 1 A range. For
other ranges, refer to
Check DC current readback accuracy (100 mA and 10 mA ranges)
Set up the equipment as shown in the following figure.
Figure 143: 2281 Current readback accuracy (10 A and 1 A ranges) test setup
Make sure the warm-up criteria have been met, as described in the Performance verification
conditions.
