Instructions

RIGOL Chapter 2 Performance Verification Test
DG2000 Performance Verification Guide
2-6
DC Offset Accuracy Test
Specification
Output Characteristic
Offset (into 50Ω)
Accuracy
±(1% of setting value + 5mV + 1% of amplitude)
Test Procedures
1. Make sure that the environment temperature is between 18℃ and 28℃ and
DG2000 has been warmed up for at least 30 minutes. Connect the 50Ω load to
the channel output terminal (take CH1 as an example; the test method is also
applicable to CH2) of DG2000; connect the 50Ω load and the voltage input
terminals of the digital multimeter using a BNC-Dual banana plug connecting
cable as shown in Figure 2-2.
2. Turn on the multimeter, select the DCV measurement function and set the range
to "20V".
3. Turn on DG2000. When the Shift key is illuminated, press Sine/Preset and
tap the Def icon, then a dialog box is displayed, tap "Apply" to restore DG2000
to the factory setting.
4. Set DG2000:
a) Set the output impedance of CH1 to 50Ω. (Tap the channel output
configuration status bar
under the user interface to enter the
channel setting interface. Tap the OutputSet  HighZ to select "Off". Tap
the Impedance menu label, and set the impedance to 50Ω.)
b) Set the output waveform of CH1 to a sine waveform with 1kHz frequency,
5Vpp amplitude and 0V
dc
offset.
c) Press Output1 or tap the channel output configuration status bar
to turn on the output of CH1 in the channel setting interface.
5. Record the reading of the multimeter and judge whether it is within the
specification ("Offset" in Table 2-2) range.
6. Keep the output impedance of CH1 of DG2000 at 50Ω and the output waveform
of CH1 as a sine waveform with 1kHz frequency and 5Vpp amplitude. Set the
offset of the output waveform of CH1 to -2.5V
dc
, -1V
dc
, -500mV
dc
, 500mV
dc
, 1V
dc
and 2.5V
dc
respectively. Record the readings of the multimeter respectively and
judge whether the readings are within the specification ("Offset" in Table 2-2)
range.