Set The Trigger System - Tenma 72-7910 Manual

Trigger control area of the operation panel includes: trigger level adjustment knob; trigger
menu key: TRIG MENU for 72‐10510 and [MENU] for 72‐7610.
For 72‐7610, the trigger level can be set as 50% of signal vertical midpoint by the 50% button.
For 72‐10510, it is achieved by pressing SET TO ZERO key.
Forcing trigger shall be achieved by pressing FORCE button. FORCE trigger is: a trigger signal
generated by force is mainly applied in trigger mode and "normal" and "single" mode.
3. Set the Trigger System
Trigger level knob: trigger knob is used to adjust the trigger level (To set the voltage level
corresponding to trigger point).
Trigger level knob: trigger knob is used to adjust the trigger level (To set the voltage level
corresponding to trigger point).
Trigger Type
The oscilloscope supports: edge, pulse width, video trigger and alternating trigger;
Edge Trigger: Edge trigger mode refers to triggering of trigger threshold on the input
signal edge.
Pulse Width Trigger: trigger produces when the pulse width of the trigger signal satisfies
some set trigger >, < or = condition.
Video Trigger: conduct field or line trigger for standard video signal. Users can activate
the video trigger by pressing [F1] button at [TRIG MENU] for 72‐10510, by pressing [F1]
button at [MENU] for 72‐7610;
Alternating Trigger: applicable to trigger signals without frequency correlation.
All kinds of trigger menus shall be respectively described as follows.
Users can activate the alternative trigger by pressing [F2] button at [TRIG MENU] for
72‐10510, by pressing [F2] button at [MENU] for 72‐7610;
Edge Trigger
Edge trigger mode refers to the triggering of the threshold on the input signal edge.
When selecting "edge trigger", trigger on the rise edge or fall edge of input signal shall
be completed.
Table 2‐7 (Page 1)
Model 72‐7610/72‐10510 User Manual
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