BK Precision DAS30, Руководство пользователя

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Triggers
This chapter describes all possible triggers of the device.
They are used by:
•
the « configuration » menu, with the A and B alarms
•
the « triggers » menu, with the start and stop parameters of the recording.
•
Edge/Level trigger
−
Edge trigger: you need a change of status o Example : Channel A1, rising edge, threshold = 0V: triggers only if
the signal status changes from negative to positive
−
Level trigger: no need to pass the threshold o Example: Channel A1, high level, threshold = 0V: triggers only if
the signal is positive
−
Alarms only have level triggers.
•
Analog / Logic channels : trigger only from analogic or logic channels
•
Single / Multiple threshold :
−
triggering from only one threshold, or
−
complex triggering from several channels and several thresholds; see description below.
Such complex triggering is only possible with analogic channels.
You can setup these triggers thanks to the « trigger » menu in the homepage.
Figure 12.1
12.1 Analog channel trigger
By pressing Start or Stop, you open the setup window for the trigger of the start or stop of recording.
After selection of the trigger on Analog Channels, the following line on screen allows you to set the trigger condition. It
depends on the selection of single or multiple threshold.
12.1.1 Single threshold
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