User manual

3.Junior User Guidebook
10
The icon shows the coupling mode of the channel.
"—" indicates direct current coupling
"" indicates AC coupling
" " indicates GND coupling
26. The reading shows the setting of main time base.
27. It is cursor measure window, showing the absolute values and the readings of the
cursors.
28. The blue pointer shows the grounding datum point (zero point position) of the
waveform of the CH2 channel. If the pointer is not displayed, it means that this
channel is not opened.
29. The yellow pointer indicates the grounding datum point (zero point position) of
the waveform of the CH1 channel. If the pointer is not displayed, it means that
the channel is not opened.
How to Implement the General Inspection
After you get a new oscilloscope, it is recommended that you should make a check on
the instrument according to the following steps:
1. Check whether there is any damage caused by transportation.
If it is found that the packaging carton or the foamed plastic protection cushion has
suffered serious damage, do not throw it away first till the complete device and its
accessories succeed in the electrical and mechanical property tests.
2. Check the Accessories
The supplied accessories have been already described in the "Appendix A: Enclosure"
of this Manual. You can check whether there is any loss of accessories with reference
to this description. If it is found that there is any accessory lost or damaged, please get
in touch with our distributor responsible for this service or our local offices.
3. Check the Complete Instrument
If it is found that there is damage to the appearance of the instrument, or the
instrument can not work normally, or fails in the performance test, please get in touch
with our distributor responsible for this business or our local offices. If there is
damage to the instrument caused by the transportation, please keep the package. With
the transportation department or our distributor responsible for this business informed
about it, a repairing or replacement of the instrument will be arranged by us.
How to Implement the Function Inspection
Make a fast function check to verify the normal operation of the instrument, according
to the following steps: