Check Dc Current Readback Accuracy (100 Ma And 10 Ma Ranges - Tektronix Keithley 2281 Series Reference Manual

Appendix B: Verification

Check DC current readback accuracy (100 mA and 10 mA ranges)

Equipment required
AC power source
300 Ω load resistor
DC voltmeter
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
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.
B-36
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
Check DC current readback accuracy (10 A and 1 A ranges)
High current 18 AWG wire
High accuracy 0.05 Ω shunt and 5 Ω shunt
Current shunt resistor cabling
(on page B-34).
077114601 / March 2019