Digital filter that compensates the free-field (Free
Field) or diffuse field (Dif. Field) effects.
Digital filter that compensates the effect of the
SA 22 windscreen.
Position that enables checking the linear operating
range for the sinusoidal signal. The instrument
uses two ranges – one for the Level Meter,
1/1 Octave, 1/3 Octave and RT60 functions (32.0
LEQ(A) – 128.0 PEAK) and another for the
Dosimeter function (50.0 LEQ(A) – 141.0 PEAK).
The calibration factor is always added to the range
limits.
Screen that enables configuring triggering of the
measurement/integration process with
parameters: Trigger, Source, Level and Gradient.
Position that switches Off or on the measurement
trigger by selecting its type: Level +, Level – or
Gradient +.
If the instrument is waiting for the trigger condition,
the appropriate trigger icon is flashing on the
display alternatively with the „play” icon.
Type of trigger that starts the 1-second
measurement/ integration under the condition:
value of the RMS result (Source) integrated during
0,5 ms is greater than the threshold value (Level).
In other cases, the instrument continues checking
the trigger condition every 0.5 ms. During one
measurement cycle the instrument performs as
many 1-second integrations as many seconds the
Integration Period consists and stops the
measurement cycle.
Type of trigger that starts the 1-second
measurement/ integration under the condition:
value of the RMS result (Source) integrated during
0.5 ms is lower than the threshold value (Level).
In other cases, the instrument continues checking
the trigger condition every 0.5 ms. During one
measurement cycle the instrument performs as
many 1-second integrations as many seconds the
Integration Period consists and stops the
measurement cycle.
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