RIGOL
Chapter 2 Performance Verification Test
DG1000Z Performance Verification Guide
2-2
Frequency Accuracy Test
Specification:
Frequency characteristic
Accuracy
±1ppm of setting value
[1]
, 18
℃
to 28
℃
Note
[1]
: ppm denotes one part per million. For example, if the setting frequency is 1MHz and the actual output
frequency is between 0.999 999MHz (-1ppm) and 1.000 001MHz (+1ppm), the instrument is up to the
specification requirement and the test passes.
Test Procedures:
1.
Make sure that the environment temperature is between 18
℃
and 28
℃
and
DG1000Z has been warmed up for at least 30 minutes. Connect the channel
output terminal (take CH1 as an example; the test method is also applicable to
CH2) of DG1000Z with the signal input terminal of the frequency counter using a
dual-BNC cable as shown in Figure 2-1.
DG1000Z Series Frequency Counter
Figure 2-1 Connect DG1000Z and the Frequency Counter
2.
Turn on the frequency counter and set its output impedance to 1MΩ.
3.
Turn on DG1000Z. Press Utility
Set To Default
OK to restore DG1000Z
to the factory setting.
4.
Set DG1000Z:
a)
Set the output waveform of CH1 to a sine waveform with 1MHz frequency
and 1Vpp amplitude.
b)
Press Output1 to turn on the output of CH1.
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