Appendix B: Verification
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
B-36
077114601 / March 2019
Check DC current readback accuracy (100 mA and 10 mA ranges)
Equipment required
AC power source
High current 18 AWG wire
300 Ω load resistor
High accuracy 0.05 Ω shunt and 5 Ω shunt
DC voltmeter
Current shunt resistor cabling
The 2281S has the following ranges to verify: 10 A, 1 A, 100 mA, and 10 mA. Follow the procedures
described below to check the current readback accuracy on 100 mA and 10 mA range. For other
ranges, refer to
Check DC current readback accuracy (10 A and 1 A ranges)
(on page B-34).
Set up the equipment as shown in the following figure.
Figure 144: Current readback accuracy (100 mA and 10 mA ranges) test setup
Make sure the warm-up criteria have been met, as described in the Performance verification
conditions.
