Instructions

Digital Storage Oscilloscope 33
menu. The patterns of channels CH1-CH4 are presented from left to right. You can set
the pattern of a signal source when the souce is open. Press Pattern softkey to set
pattern for other source.
1: Set the pattern of the channel selected to "H", namely the voltage level is higher
than the trigger level of the channel.
0: Set the pattern of the channel selected to "L", namely the voltage level is lower
than the trigger level of the channel.
X: Set the pattern of the channel selected to "Don’t Care", namely this channel is
not used as a part of the pattern. When all channels in the pattern are set to "Don’t
Care", the oscilloscope will not trigger.
: Set the pattern to the rising edge of the channel selected.
: Set the pattern to the falling edge of the channel selected.
: Set the pattern to the rising or falling edge of the channel selected.
5. Press the Level softkey to set the trigger level. For the analog channels, the trigger
level of each channel needs to be set independently. For example, set the trigger level
of CH1. Press Level softkey to select CH1, and then use Trigger level knob to modify
the level. Press Pattern softkey to set the trigger level for other source.
2.7.8 Interval Trigger
Trigger when the time difference between the neighboring rising or falling edges meets
the time limit condition (<, >, !=, =).
To set interval trigger:
1. Press the [Trig Menu] button on the front panel to enter the Trigger system function