RIGOL Chapter 2 Specifications Test
DL3000 Performance Verification Manual
Test Procedures
CV programming accuracy refers to the error between the voltage setting of the
channel and the actual input voltage value when the electronic load is in CV mode.
CV readback accuracy refers to the error between the readback voltage value and
the actual input voltage value when the electronic load is in CV mode.
The following section takes DL3031A as an example to test the CV programming
accuracy and readback accuracy of the DL3000 series.
Note: During the test, please select the corresponding test record form according to
the model of the DL3000 series under test to set the corresponding parameters,
record and calculate the corresponding specifications.
Specification:
Annual Accuracy
[1]
(25℃ ± 5℃), ± (% of Output + Offset)
Note
[1]
: The accuracy specifications are acquired through calibration at 25℃ after 1-hour warm-up.
Note
[2]
: FS indicates the full scale.
Test Procedures:
1. Power off DL3031A. Connect DL3031A, AC power supply, DC power supply, and
a digital multimeter according to Figure 2-2 (Pay attention to the connection
method for the channel input terminals of DL3031A and the digital multimeter).
Connect the USB DEVICE interface on the rear panel of the electronic load to the
PC via the USB cable.
2. Turn on the AC power supply, and then set its voltage to 230 V, the frequency to
50 Hz. Then, turn on the output.
Note: The voltage setting of the AC power supply should be matched with the
AC voltage selector on the rear panel of DL3031A.
3. Power on DL3031A, and restores all the settings of the electronic load to its
factory default settings.
4. Turn on the DC power supply, and set its output voltage to 152 V and output
current to 0.1 A.
5. Measure the CV programming accuracy and readback accuracy when the
voltage range is 150 V.
(1) Measure the CV programming accuracy and readback accuracy when the
voltage setting value is a low value.
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