Model 2380-500-30 Programmable Instruments
Section 3: Performance Verification
2380-500-30-905-01 Rev. A / November 2015
14
Check DC power and DC power readback accuracy
You can use the text below to verify whether the electronic load’s setting accuracy and readback
accuracy in CW mode are within the specification.
Equipment required
DC source
The DC source output current must be greater than the
electronic load’s rating current.
Digital voltage meter
Keithley Model 2000
High precision shunt
The selected shunt must be able to withstand the
maximum current of electronic load.
Cable for high current (thick-cable)
22 AWG hookup wires
Cable for low current (thin-cable)
18 AWG hookup wires
1. Set up the equipment, as shown in the following figure.
Ensure the warm-up requirement has been met, as described in the beginning of
Performance
Verification Procedures
.
Figure 3: DC power accuracy test setup
2. Set the DVM to DC voltage measuring mode and auto range mode.
3. Set the electronic load as follows:
Mode:
CW
Range: refer to actual model’s datasheet
Power: 10 W (refer to actual model’s datasheet)
4. Set the DC source as follows:
