Tektronix Keithley 2281 Series Reference Manual page 527

Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
Step 2
To verify the 0.05 Ω precision shunt resistor, you need to measure two voltages:
Voltage
V
total
V
0.05
Then calculate the value of the 0.05 Ω shunt using the following formula:
R = V
0.05 0.05
You need to connect the shunt with the power supply, electronic load, and digital multimeter. For
details, see the following figures. After you have made the connections, configure the settings for the
power supply and electronic load, as shown in the following table.
Measure step
V
total
V
0.05
077114601 / March 2019
Description
The total voltage across the two shunts
The voltage across the 0.05 Ω shunt
* R / V
total total
Power supply
1.0 V, 0.2 A, constant voltage mode
1.0 V, 0.2 A, constant voltage mode
Figure 148: Measure the voltage across the shunts
Appendix C: Calibration and adjustment
Electronic load
2.0 V, 0.2 A, constant current mode
2.0 V, 0.2 A, constant current mode
C-5