Measurement Functions
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⚫ Trigger level
The trigger level refers to the level which the trigger slope passes through.
If the signal of the trigger source passes through the set trigger level
according to the specified trigger slope, triggering occurs. When the soft key
[Function] is pressed and “Trig-Level” is selected, you can rotate the knob
to adjust the trigger level. In this case, the trigger level can be changed by
rotating the knob and you can observe trigger level changes on the screen.
Print data
In the advanced menu, users can select the Print Data item and select the data
logging mode. Data of oscilloscope interface will be recorded to U disk.
Print data mode:
⚫ Off: turn off the print data function.
⚫ Post: The recorded data is consistent with the data displayed on the
oscilloscope interface
⚫ Raw: The recorded data is original data, The default data sampling interval
is 10us
⚫ Both: Post and Raw, record two data file.
8.3 Harmonic measurement
IT7900P series source can display harmonic parameters in the list or bar chart
form to make the analysis of test result clear.
Press key on the front panel, and the following initial interface of
harmonic measurement will appear.
⚫ Harmonic bar chart screen
Description of keys on the harmonic display interface:
/ : Select the voltage/current harmonic
: Distortion factor calculation formula.
%r: displaying harmonics in the form of percentage to the overall voltage
amplitude of all harmonics.
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