Norsonic NOR150, Инструкция по эксплуатации

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52 Chapter 11
Trigger Selection Menu
Level Below
The measurement will start once the level is below the set trigger level. In addition to the
level, the measurement parameter can also be specifi ed.
Level Above
The measurement will start once the level is above the set trigger level. In addition to the
level, the measurement parameter can also be specifi ed.
Level Exceeds
The measurement will start once the level exceeds the set trigger level. It derivates from the
Level Above in which case it will trigger once the level is more than the set trigger level, the
Level Exceeds must be below, and then exceed the set trigger to fulfi l the trigger condition.
In addition to the level, the measurement parameter can also be specifi ed.
Level Drops The measurement will start when the level drops below the set trigger level. It derivates from
the Level Below in which case it will trigger once the level is less than the set trigger level,
the Level Drops Below must be above, and then drop below the set trigger to fulfi l the trigger
condition. In addition to the level, the measurement parameter can also be specifi ed.
In the trigger function menu you configure which
function to trigger on. The functions can only be SPL
functions (Figure 11.4). Only functions from channel 1
can be used.
Figure 11.4