Instructions

4.Advanced User Guidebook
74
Function Menu
Description
Self Cal
Carry out the self-calibration procedure.
Default
Call out the factory settings.
ProbeCh.
Check whether probe attenuation is good.
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
Setting
Description
operate
Enable
Operate
Control enable switch
Control operate switch
Output
Pass
Fail
Beep
Stop
Info
Signal tested corresponds with the rule
Signal tested not correspond with the rule
Beep when it satisfies the rule
Stop once satisfying the rule
Control the display status of info frame