Appendix C: Calibration and adjustment
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
C-12
077114601 / March 2019
Front-panel calibration procedure
To perform calibration from the front panel:
1. Turn on the instrument and allow it to warm up for at least one hour before performing the
calibration.
2. Choose any function on the startup screen.
3. Press the
MENU
key.
4. In the System Information menu, select
Calibrate
. The keypad is displayed.
5. Enter the calibration password and select
OK
on the keypad. The default password is
KI002281
.
If you forget the calibration password, you can reset your password to the factory default. For details,
refer to
(on page C-30).
6. The 2281S will prompt you to make connections and start to calibrate voltage and current. Refer
to the instructions on the following pages.
Voltage calibration
Connect the instrument to a digital multimeter (DMM). For details, see
Voltage calibration connection
(on page C-7).
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 2281S, the expected values are shown in the following table.
Steps
Maximum voltage
Minimum voltage
1
0.55 V
0.05 V
2
32 V
28 V
Step 1
1. Enter the measured result from the DMM.
2. After entering the data, the waiting window is displayed. You need to wait a few seconds for the
internal measurements and calculations. The step 2 calibration window is displayed.
