Cv Programming And Readback Accuracy - Rigol DP831A Performance Verification Manual

RIGOL

CV Programming and Readback Accuracy

CV programming accuracy refers to the error between the voltage setting of the
channel and the actual output voltage value when the power supply is in CV mode;
CV readback accuracy refers to the error between the actual output voltage value
and the readback voltage value when the power supply is in CV mode.
DP831A is taken as an example to test the CV programming and readback accuracy
of DP800 series in the following section.
Note: During the actual test, please select the corresponding test record form
according to the model of the DP800 power supply under test to set the
corresponding parameters, record and calculate the corresponding specifications.
Specification:
[1]
Annual Accuracy
Channel
CH1
DP831A CH2
CH3
CH1
DP832A
CH2
CH3
CH1
DP832
CH2
CH3
CH1
DP821A
CH2
DP811A
CH1
[1]
Note : The accuracy parameters are acquired via calibration under 25℃ after 1-hour warm-up.
Test Procedures:
1. Turn off DP800. Connect DP800, AC power supply and multimeter according to
Figure 2-1. The multimeter is connected with the channel output terminals of
DP800; please refer to "Test Precautions" for the connection method. Here,
CH1 is taken as an example and the connection method is also applicable to CH2
and CH3. Then, connect the power supply with PC (take the connection via USB
cable as an example) via the remote interfaces (USB, GPIB, LAN).
2. Turn on the AC power supply; set its voltage to 230V and frequency to 50Hz.
Note:
The voltage setting of the AC power supply in this step should be in
2-20
(25℃±5℃)± (Output Percentage+Offset)
Programming
0.1%+5mV
0.05%+20mV
0.05%+20mV
0.05%+20mV
0.05%+20mV
0.1%+5mV
0.05%+10mV
0.05%+10mV
0.05%+10mV
0.1%+25mV
0.05%+10mV
0.05%+10mV
Chapter 2 Constant Voltage Tests
Readback
0.1%+5mV
0.05%+10mV
0.05%+10mV
0.05%+10mV
0.05%+10mV
0.1%+5mV
0.05%+5mV
0.05%+5mV
0.05%+5mV
0.1%+25mV
0.05%+5mV
0.05%+10mV
DP800 Performance Verification Manual