Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
Appendix C: Calibration and adjustment
077114601 / March 2019
C-3
Required equipment
This section lists the required equipment you need for voltage and current calibration procedures.
Alternate equipment may be used, as long as the equipment has specifications at least as good as
those listed in the table.
You could either select an electronic load or a resistor for calibration.
Equipment
Required specifications
Uncertainty
Digital multimeter
7½ digits
90 day 5 ºC uncertainties, see the following table
See NOTE below.
Electronic load
Constant current (CC): 0.001 A to 6 A
Constant voltage (CV): 0.3 V to 60 V
See NOTE below.
Resistor (R-Load)
300 Ω
Temperature coefficient/ power change:
Vout / (R +∆R) <10% current measure specifications
See NOTE below.
Shunt
5.05 Ω and 0.05 Ω
Temperature coefficient/ power change
Vout / (R +∆R) <10% current measure specifications
See NOTE below.
Power supply
Support CC/CV mode
MAX Voltage no less than 20 V
MAX Current no less than 1.5 A
Ripple noise pkpk no larger than 3 mV
See NOTE below.
The table lists detailed specifications for digital multimeter.
Range
PMM of Reading
PMM of Range
Resolution
0.2 V
25
6
10 nV
2.0 V
18
2
100 nV
200 V
27
3
10 µV
20
52
7
20 µΩ
Refer to the manufacturer's specifications to calculate the uncertainty, which will vary for each test
point.
