Series 2280 Precision DC Power Supply Reference Manual
Appendix C: Calibration and adjustment
077085503 / March 2019
C-13
Step 4
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
2280S-32-6
5.05 Ω
Constant current mode
32 V
0.1 A
300 Ω
2280S-60-3
5.05 Ω
Constant current mode
30 V
0.1 A
300 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. Then the Save window is displayed.
4. 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-15). If you want to
continue the calibration, press the
Next
soft key.
High-current calibration
Connect the instrument with the digital multimeter (DMM), precision shunt resistor, and electronic load
(or resistor). For details, see
Current calibration connections
(on page C-8).
Perform the following steps to finish the high-current calibration:
Steps 5 through 8: Current calibration on the 1 A and 10 A 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.
For Model 2280S-32-6, the expected values are shown in the following table.
Steps
Maximum voltage
Minimum voltage
5
0.015 V
6e
-4
V
6
Not applicable
Not applicable
7
1.5 V
0.06 V
8
Not applicable
Not applicable
