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October 2014
Page
9
The icon indicates the coupling mode of the CH1 channel:
The icon "–" indicates the direct current coupling.
The icon "
∼
" indicates the AC coupling.
The icon "
" indicates GND coupling.
The reading indicates the vertical scale factor (the Voltage Division) of the
CH1 channel.
The information shows the zero point positions of CH1 or CH2 channel.
The yellow pointer shows the grounding datum point (zero point position)
of the waveform of the CH2 channel. If the pointer is not displayed, it
shows that this channel is not opened.
The red pointer indicates the grounding datum point (zero point position)
of the waveform of the CH1 channel. If the pointer is not displayed, it
shows that the channel is not opened.
The positions of two purple dotted line cursors measurements.
2.2.2
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:
►
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.
►
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 the distributor of
PROMAX responsible for this service or the PROMAX local offices.
►
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 the PROMAX distributor responsible for this
business or the PROMAX local offices. If there is damage to the instrument
caused by the transportation, please keep the package. With the
transportation department or the PROMAX distributor responsible for this
business informed about it, a repairing or replacement of the instrument will
be arranged by the PROMAX.