Appendix C: Calibration and adjustment
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
C-16
077114601 / March 2019
Step 6
1. Before starting this calibration step, configure the shunt and load (electronic load or resistor load)
as shown in the following table.
Model
Shunt
Electronic load
Resistor load
2281S
0.05 Ω
Constant voltage mode
0.3 V
0.5 A
5 Ω
2. Wait for the instrument to take internal measurements and calculations.
Step 7
1. Before starting this calibration step, configure the shunt and load (electronic load or resistor load)
as shown in the following table.
Model
Shunt
Electronic load
Resistor load
2281S
0.05 Ω
Constant current mode
32 V
6.0 A
5 Ω
2. Enter the measured result from the digital multimeter (DMM) and press the
ENTER
key.
3. After entering the data, the waiting window is displayed. You need to wait a few seconds for the
internal measurements and calculations. The step 8 calibration window is displayed.
Step 8
1. Before starting this calibration step, configure the shunt and load (electronic load or resistor load)
as shown in the following table.
Model
Shunt
Electronic load
Resistor load
2281S
0.05 Ω
Constant current mode
30 V
6.5 A
5 Ω
2. Wait a few seconds for the internal measurements and calculations. Measurements are complete
when the Save window is displayed.
3. You can save the calibration results or continue to the next calibration step. For the details on
saving, see
Saving calibration constants from the front panel
(on page C-19). If you want continue
the calibration, press the
Next
soft key.
Low-sink current calibration
Perform the following steps to finish the low-sink current calibration:
Step 9 and step 10: Sink-current calibration on the 10 mA and 100 mA ranges
You must input the measured value from the DMM. The value should be within the expected range.
A message will indicate if the DMM data entry was out of the expected range. Verify that the proper
shunt value was used or that the cables are properly connected.
