RIGOL Chapter 3 Constant Current Tests
DP1308A Performance Verification Manual
3-4
the power supply should still be CC and the output should be approximately
full-load output. Read the reading U
1
(namely the voltage of the current
monitoring resistor) on the multimeter and calculate the full load current U
1
/R.
6. Calculate the CC load adjsutment rate:
%100
CurrentOutput Rated
|//|
01
×
−−
offset
IRURU
, wherein,
(about 250 uA) is the offset caused by error.
7. Compare the measurement result with the specification in “Appendix B:
Specifications”.
8. Repeat steps 1 to 7 to test the CC load adjustment rates of the other two output
channels.
Table 3-1 Setting and specification of CC load adjustment rate test
Channel +6V/5A +25V/1A -25V/1A
Voltage (V) 6.3 26.25 -26.25
Current (A) 5 1 1
Specification <0.01%+250uA