RIGOL
Chapter 2 Constant Voltage Tests
DP1308A Performance Verification Manual
2-4
3.
Turn on DP1308A. Press +6V, +25V or -25V at the front panel to select the
channel to be tested. Set the voltage and current of the channel to be tested
according to Table 2-2. Press On/Off under the channel to be tested to enable
power output.
4.
Turn on the eletronic load and set the electronic load current to 0A or do not
connect any load device (no load).
5.
Turn on the multimeter and select DCV (DC voltage) measurement function. The
output status of the power supply should be CV. Read and record the current
reading U
0
on the multimeter.
6.
Set the electronic load for the output channel’s rated current. The output status of
the power supply should be CV and record the reading U
1
on the multimeter.
7.
Calculate
%
100
Voltage
Output
Rated
|
|
0
1
×
−
−
offset
U
U
U
to get the measurement result of load
adjustment rate. Wherein,
offset
U
(about 2mV) is the offset caused by error.
8.
Compare the measurement result with the specification in “Appendix B:
Specifications”. The measurement result should be no greater than 0.01%.
9.
Repeat steps 1 to 8 to test the CV load adjustment rates of the other two output
channels.
Table 2-2 Setting and specification of CV load adjustment rate test
Channel
+6V/5A
+25V/1A
-25V/1A
Voltage (V)
6
25
-25
Current (A)
5.25
1.05
1.05
Specification
<0.01%+2mV
