Owon XDS4000 Series User Manual page 88

Do Self Cal (Self-Calibration)
The self-calibration procedure can improve the accuracy of the oscilloscope
under the ambient temperature to the greatest extent. If the change of the
ambient temperature is up to or exceeds 5℃, the self-calibration procedure
should be executed to obtain the highest level of accuracy.
Before executing the self-calibration procedure, disconnect all probes or
wires from the input connector. Push the Utility button, select Function in
the bottom menu, the function menu will display at the left, select Adjust. If
everything is ready, select Self Cal in the bottom menu to enter the
self-calibration procedure of the instrument.
Probe checking
To check whether probe attenuation is good. The results contain three
circumstances: Overflow compensation, Good compensation, Inadequate
compensation. According to the checking result, users can adjust probe
attenuation to the best. Operation steps are as follows:
1. Connect the probe to CH1, adjust the probe attenuation to the maximum.
2. Push the Utility button, select Function in the bottom menu, select Adjust
in the left menu.
3. Select ProbeCh. in the bottom menu, tips about probe checking shows on
the screen.
4. Select ProbeCh. again to begin probe checking and the checking result
will occur after 3s; push any other key to quit.
● Pass/Fail
The Pass/Fail function monitors changes of signals and output pass or fail
signals by comparing the input signal that is within the pre-defined mask.
Push the Utility button, select Function in the bottom menu, select Pass/fail
in the left menu.
Function
Menu
operate
Output
Beep
4.Advanced User Guidebook
Setting Description
Enable Control enable switch
Operate Control operate switch
ON hen turned on, stop once the set rules are
Stop
OFF met
ON Turn on/off display information
Info
OFF
ON When turned on, beep once the set rules are
OFF met
The measured signal conforms to the set
Pass
Type type, and the corresponding output is
Fail
generated
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