Note: When an event recording is waiting for the gradient trigger manual
trigger or “integration period” trigger, the flashing “trigger” icon
superimposes on the grey „note-curve” icon.
Definition of filter
The Filter position enables the user to choose the broadband frequency filter
during event recording: Z, A, C, B or LF.
Sampling frequency of event recording
The Sampling position enables the user to select the sampling frequency of event
recording: 12KHz.
Source result
The Source position indicates the trigger source. Only one measured result can
be used as a triggering source in all modes, namely the output of the LEQ detector
of the first profile, which is denoted here as Leq(1).
Threshold level
The level of the triggering source (Level) can be set in the range from 24 dB to
136 dB.
An instantaneous value of the RMS or LEQ result calculated with selected Filter
and Detector constant for the first profile (path: <Menu> / Measurement / Profiles)
compares with the Level value every 0,5 milliseconds.
Speed of triggering signal changing
Speed of triggering signal changing (Gradient) can be set in the range from
1 dB/ms to 100 dB/ms.
Checking the triggering condition
The Tr. Period parameter defines the time interval for
checking the triggering condition as: Logger Step, 0.5ms,
100ms and 1s.
Recording before trigger
When the Pre Trigger parameter is switched on, the event
signal will be recorded before the first trigger. The interval
of such recording is 1 s.
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